3 distribution only when I restart or turn off the machine it does not restart properly. YouTube black screen complaints are mostly from Firefox and Chrome users when streaming videos. 3 on the desktop rather than what I've published today) I decided to do things the user friendly way and use pirut, the graphical update tool, rather than yum at the command line. ctrl/alt/del will bring up the blue options screen (after a few minutes) but when you make a selection the screen goes back to black. In fact, I am unable to login even through Safe Mode. After one of the recent Windows 10 TP (Technical Preview) updates (I have now build 9879), Teamviewer remote connection stopped working and is either showing only a black screen or giving an error: "The screen cannot be captured at the moment. I’m completely new to using this software and I am already running into a few problems. » Setup FTP server on centos 7 ( VSFTP ) » How to install phpmyadmin on centos 7 » How to install LAMP server on centos 7 » How to install VNC server on Centos 7 » How to Setup network on centos 7 » How to install webmin on centos 6 » How to install phpmyadmin on nginx on centos 6 » How to install LEMP on centos 6 ( Nginx, PHP, Mysql ). cfg Because I know it's already correct: Once the DVD rescue gets to 'login', type: root from there I run fdisk -l to confirm my HD partitition order. I just waited for twenty minutes and the entire thing still stayed black. I logged in as usual and the screen that was supposed to be my desktop was simply a black screen with a movable cursor. Was able to login as root and shutdown. The installer ran in graphical mode and looked fine. How can I install Gnome desktop GUI on a RHEL (Red Hat) 7 or CentOS Linux 7 system using command line option? GNOME is a highly intuitive and user friendly desktop environment for CentOS and RHEL 7. screen that has a centos 7 design in the lower right hand side. Six months , hhhhhh :D now i have centos linux hosting server , Four processors & 18 G. I set up a CentOS server on my LAN behind my firewall. When I try to connect to the VNC without remote desktop logged in, I see the black screen on the vnc viewer. Running Gnome under CentOS Linux release 7. RedHat 7 / Centos 7 Ethereum Mining Script If anybody is interested in a 100% start to finish automated Ethereum mining script for Centos7 + Nvidia mining I will post it here. i have compaq cq61-303sv with 3 GB RAM,2. Ever since, everytime I tried to hard start my laptop, I would be able to access the Log-In screen fine, but once it recognized my face, the load to Windows would take 5-10mins of black screen before loading. But although the resolution is correct once I've logged in, the login screen resolution is far too high. (10 replies) hi all, I have a problem with my CentOS 6. Steps To Reproduce: 1. I set up the Virtual machine running Windows 7 and everything worked great. Screen will also print out control characters in caret notation. I have successfully installed Windows 10 within the virtual PC and a few other programs. With this particular operating system, you can deploy very powerful web sites, containers, and so much more. In this guide I use Slackware (doesn't matter which version) but the same should work for any other distribution. We could see the login screen but would get black screen after login. Below method could help you watch your beloved YouTube videos with best possible way. Part of Guide to the Local System. Guest addition update has no effect. It reboots, I get to the login screen with the drums, it looks like the desktop is going to fire up and then the screen goes black and the only thing active is the mouse pointer. For now, until ELRepo can get the NVIDIA driver packaged for CentOS 8, the NVIDIA driver can only be installed with the. 7 Linux VDA on CentOS 7 and it all installed without any major issues and works fine on a basic build with any updates. Resolving Kernel Panics. If I don't save the domain portion and type it in to the username field manually, it works fine. That’s All. Blank, black screen in Workstation on CentOS 7 Forums / NoMachine Terminal Server Products / Blank, black screen in Workstation on CentOS 7 This topic has 3 replies, 2 voices, and was last updated 3 years, 7 months ago by Britgirl. This guide will help you to install GUI on CentOS 7 on the top of the minimal server installation. VDA installed via command line using /servervdi switch to allow XenDesktop on Server based OS. I logged in fine and tried several commands to no avail, including:. Reproduce: create new 64-bit debian linux vm using defaults. I logged in as usual and the screen that was supposed to be my desktop was simply a black screen with a movable cursor. We get pulled away and then go back to what we are doing and there is a black screen that greets us. Use X11RDP-o-Matic instead. The post is written keeping in mind you have installed RHEL/CentOS Minimal Install which is preferred in Enterprise and production environment. Running VBox on Windows 7 Pro with Ubuntu client. They were not able to enter the password at login after screen lock. After updating the system we will need to add EPEL repository into our system as Monitorix is not available in the default repository of CentOS 7. But although the resolution is correct once I've logged in, the login screen resolution is far too high. In this case, you will get the "Install CentOS" screen, and after you hit "install" it will turn blank. screen that has a centos 7 design in the lower right hand side. For more information, see the Knowledge Base document When you can't re-attach to your screen session after a lost connection. Reproduce: create new 64-bit debian linux vm using defaults. CentOS7 install on ESXi6 shows blank black screen after selecting install or test from menu if I select Install CentOS 7 or Test this media, the console display. I'm not an amazing Linux guru, I only know enough to be stupidly dangerous, but my Google-fu has failed me, and I'm desperate enough to try this. of lock screen. After clicking on create session you are redirecting to following screen. The install seemed to have gone ok but on the reboot nothing except the additional install steps appear on the screen. 2) shows me a black screen after the CentOS logo disappears. 4 repository are now mainline. X are listed below : CentOS 7 uses XFS as its default file system. [CentOS] VNC server issue- Gnome - oh no! Something has gone wrong. - posted in Windows 7: Hello Bleeping computer, I was surfing the web one day and all of a sudden my computer restarts. I saw a suggestion that the black screen may VNC Black Screen when connecting to Windows 7. I can't get back my session on any other computer and requires a reboot or force log off from Studio. When I try to login via VNC, I get a black gray windows with X window cursor see attached screenshot (background. They were not able to enter the password at login after screen lock. We've discovered that reinstalling guest additions and rebooting somehow fixes the problem. 5, a Linux platform based on sources of Red Hat Enterprise Linux 7. Afterwards, I went to login into my Centos 7 System, and after a successful password entry, it'll start the login process, and then flash a black screen. grub rescue> After which the drive is not recoverable. The latest version of CentOS 7. If however, I update the OS using yum update at any point in the build the Published Desktop first prompts my user to Choose password fo. VNC (Virtual Network Computing) is a server-client protocol which allows user accounts to remotely connect and control a distant system by using the resources provided by the Graphical User Interface. The user did not have "control" of the sessions. img I boot it. How to turn off GUI screen lock on rhel 7/centos 7 Posted on February 17, 2015 December 16, 2016 by Vishwanath Mule It was very annoying when I work on rhel 7 and screen gets locked when it was idle for some period and again I have to logged in from virtual box and then on server. First, you get to choose the file system for your new CentOS server. How to Install Plesk on CentOS via the Command Line. Hello, I'm fairly new to the Linux scene and having an issue where after trying to install Teamviewer on RHEL7 Workstation, I'm now left with a mouse cursor on a black background and no login method (via GUI). I installed Centos 6. However when running the same on CentOS 7, my logs are filled with:. The screen would go black after I chose to install CentOS 7 on VirtualBox. Then another person on a different computer can ssh to the server (using the same user name) and type the following: $ screen -x testsession. My Remote Desktop was working fine up until a couple days ago. it will autostart), then Press Enter and follow the on-screen instructions. Oracle OUD LDAP Standalone Setup on Centos 7 Published by blacktech on January 20, 2020 January 20, 2020 This is a highlevel setup process that can serve as a guide on the setup of Oracle’s OUD (Oracle Unified Directory) on a Linux Centos 7 platform. Kernel parameters aside (console=ttyUSB0 console=tty0), I am trying to get a login console working on a USB-to-serial adapter. Tutorial on how to boot RHEL 7 and CentOS 7 Server in Single User Mode. 6 kernel [CentOS] Centos 5 File Server X-Windows problem [CentOS] 800x600 on the console? [CentOS] CentOS 4. The ctl-alt-f2 fails. Compared to e. Additional Information. once I enable a new user for vnc access, I can get connected the first time to the server, every subsequent attempt just results in a black screen, even after waiting for 15 minutes. As of this very moment, you need to enable the Continuous Release repository, which will get emptied when the final CentOS 7. What should I do? And no response to the keyboard. When I finish installation, the first reboot allows me to start the GUI with the command "startx". We have experienced a "black screen of death" after booting a CentOS virtual machine running on an Oracle VirtualBox. 5 but i have one Problem. systemctl enable [email protected] Running VBox on Windows 7 Pro with Ubuntu client. RHEL 7 /Cent OS 7Redhat Enterprise Linux 7. iso Graphical installer seems not working, i am getting blank screen with cursor (that does not blink). The problem is that rebooting the VM gives me a black screen after it finishes the text booting parts. After Nvidia driver installs, system reboot's to blank screen. VNC black screen with a X cursor on Red Hat Enterprise Linux Server release 5. You can use it to turn a local computer or server to communication server. When your system reboots, remove the install disk and Phase 2 begins. I've seen this a few times and I suspect it is something to do with the Video card but I can't seem to find the thorn so I can pull it out. The following is the output when I try to run startx from the terminal as root using ctrl-alt-f2:. We cover both Ubuntu & Centos password reset and changing options. A familiar "login:" and "Password:" dialog is presented to the user on a black screen inside the vncviewer. The key combination “Ctrl+Alt+Del”, when pressed on a virtual console (black-screen tty), causes the system to reboot. This procedure should work for all nVidia video cards. This forum covers all Gentoo-related software not officially supported by Gentoo. Then the black console screen comes up on the Win10 client to finalize the upload and it fails with this … (sorry cropped the image when taking the screenshot). when i restart my physiacl computer Virtualization: VMware Workstation 7 Available. 0 VGA compatible controller: ASPEED Technology, Inc. 3 Screen Timeout [CentOS] autoprobe for nVidia 6200 broken. The screen just shows CentOS progress bar. I tried different media. HP EliteBook laptop with Nvidia FX2700 video (installed display driver from HP site). I don't know if this is the new Ubuntu version issue, or is this the TeamViewer issue. Can move cursor around screen. The easy way to resolve it is to: Click on the black RDP windows (to select it) and press CTRL-ALT-END to bring up the Windows Security screen and select LOG OFF, then log back in. The logon screen looks normal. Install TeamViewer Host on an unlimited number of computers and devices. It should work after reboot … Else try the below option. the escape command or the -e option. I have 2 different machines - one running RHEL7 and one running CentOS-7. Ever since, everytime I tried to hard start my laptop, I would be able to access the Log-In screen fine, but once it recognized my face, the load to Windows would take 5-10mins of black screen before loading. Working with Screen. Verify the DNS/FQDN of both ESXi host and guest 2. After installing Linux in a production or testing environment many users struggle to find a way on How to Remote Desktop from windows to Linux machine. I have DaVinci Resolve Studio 16. Even in rescue centos mode. If however, I update the OS using yum update at any point in the build the Published Desktop first prompts my user to Choose password fo. If you can, then you can launch another login manager and at least have that much. x86_64 After that I had a new initrd. Learn programming, marketing, data science and more. If you click ok, you will see the processing. As of Release 3. I can Login in the game but not more. Ctrl-Alt-Delete does bring up Task Manager, and from there I can launch a bunch of stuff was even able to start Firefox from command line, download Autoruns, etc. The actual cause of the Windows 10 black screen after login is still unclear; it could be the Windows update itself, or something. The screen just shows CentOS progress bar. @gjacobse said in Screenconnect connects but only have black screen:. I cannot open nvidia control panel either. Black screen on connection to headless CentOS 7 NoMachine. The screen is completely black, there is no mouse pointer. The Issue – When using Windows Remote Desktop client the remote screen turns black right after login and you have no control. cfg Because I know it's already correct: Once the DVD rescue gets to 'login', type: root from there I run fdisk -l to confirm my HD partitition order. RDP, Remmina, Remote connection Got this when trying to connect to a Windows 10 Technical Preview using Remmina after a Windows upgrade. When any of the various VMs are started from the Powered Off state, the player window will open and a big black screen will appear where the guest display should be shown. When I try logging into my main account with the correct password, the wheel starts spinning, but then the screen acquires a blue tint, flashes, and then returns back to the login screen, asking me to enter my password again. Hi, After updating a few weeks ago, I can no longer use Deepin Desktop on my work PC, as after logging in on the session manager, all I get is a black screen with a cursor. Since this can also be a sign that something is wrong, the x11-wm/twm and x11-terms/xterm packages can be installed only to test X. Run the below 'xfreerdp' command, replace the user name and ip address and screen resolution as per your setup. yum install screen. i can swipe this screen upwards which takes me to a. The client connects to the storage volume of the storage server through the TCP / IP protocol. Then it just sits there, I look over at the monitor connected to the box and see the screen is black with the black 'x' mouse cursor If I then do ctrl-c in Putty the monitor connected to the server goes to the GUI login screen and Putty on my end shows this:. Than I try to use ctrl alt f2 and it break to text mode. Update applied 12-28 caused the lock screen authentication to fail on two different x86_64 machines. However, after this my laptop screen is most of the time black (sometimes I do get an image on my laptop screen but then it will start flickering and go black again). I foolishly allowed a dev vm to upgrade to ubuntu saucy salamander 13. I've tried ctrl+alt+f2 to f7 but nothing happens. Configuration of graphical login. Symptom: After logging into Windows 7, a black screen shows up and the desktop is missing. Following entering the password for default user, the screen will give the impression of login, but the final result is a plain black screen with the cursor only. 5 ,after searching the web for tips on configuration I did the fallowing stuff to unable connecting the http server from outside. Before the logon message appears, there is no screen update after the message is shown and, therefore, a black screen is returned instead. A few xterm windows should appear, making it easy to verify the X server is working. Internal PCoIP connections may be successful, however connecting externally results in a black screen. Installing and Configuring Zabbix Server on CentOS 7. However, when I try to close the virtual machine (and when it presents the option to SAVE, POWER OFF, SHU. Recently, my machine crashed while the VM was still running and had to be power-cycled. Huawei Releases openEuler, A CentOS-Based Linux Distribution. As per your experience, the VM worked when running the old version of "guest additions", but on upgrading to the latest "guest additions" (strangely it seems the guest additions ISO in V5. This happens to all the accounts on this computer. Screen does not understand the prefix C-to mean control, although this notation is used in this manual for readability. I choose Linux Mint and the screen goes to black and never comes back. When any of the various VMs are started from the Powered Off state, the player window will open and a big black screen will appear where the guest display should be shown. Grey screen with working mouse after login If this is your first visit, be sure to check out the FAQ by clicking the link above. How to Setup VNC Server (Linux Remote Desktop Access) on CentOS/RHEL and Fedora Like user1 have a 800×600 screen, on CentOS 7 occur > Warning: group does not. I could login as a user remotely. You can use it to turn a local computer or server to communication server. you need to do a bit of work to set it up but it's all described here. I will be using Parallels Desktop for Mac with Windows 7 and XP virtual machines for the tests. RedHat 7 / Centos 7 Ethereum Mining Script If anybody is interested in a 100% start to finish automated Ethereum mining script for Centos7 + Nvidia mining I will post it here. (SOLVED) For everyone who is having black screen after login problems ‎09-12-2017 08:53 PM I had the same issue too and my temperary solution is to revert the system to previous time point and disable the update before Windows or HP can give any solution. Connect to Windows Machine with RDP from CentOS 7 / RHEL 7 Console or terminal. This distinction becomes important when an image is present in the menu. After that, when I should have seen the gdm login screen, all I got was the. I'm using Vmware pro workstation 14 in trial mode. unable to access user interface. Soon it'll show Started virtualization daemon, and then load the login screen again!. I remove it, and saved it with ctrl+x, but still won't boot. Hi, i just installed CentOS 7. This article aims at "Things to do after installing RHEL/CentOS 7". 1 receiver), putting in suspend, When I opened my Windows laptop, all the Windows VDI sessions reconnected fine, but my All my Linux VDA's shows a black screen. [[email protected] ~]# xfreerdp -g 800x600 -u administrator 192. Cause: The issue can be caused by several factors including the following ones: · Spyware or backdoor worm infection. After that a black screen and live cursor is all I have. I have successfully installed Windows 10 within the virtual PC and a few other programs. Fedora 31/30/29/28 nVidia Drivers Install Guide Updated on December 22, 2019 by JR 2578 comments This is guide, howto install nVidia proprietary drivers on Fedora 31/30/29/28/27 and disable Nouveau driver. Only linux guest os seems have the problem. After digging around I noticed that the straw that broke the camels back was PMS, where the cached folder was taking up nearly 4GB worth of space. x86_64, systemd-208-9. I can't hit Ctl End or anything on the black screen. Yesterday all of sudden all the employees who are working on VNC got the same issue on Redhat 7. When you boot into CentOS 7 for the first time, you will be asked to accept the License Information. exe is not running in Task Manager. You can unlink it: unlink. After installing CentOS 7, you may go ahead and start using the OS, but there are many things we can do. This works without issue on Debian 8. The install seemed to have gone ok but on the reboot nothing except the additional install steps appear on the screen. This procedure should work for all nVidia video cards. TeamViewer Host is used for 24/7 access to remote computers, which makes it an ideal solution for uses such as remote monitoring, server maintenance, or connecting to a PC or Mac in the office or at home. ctrl/alt/del will bring up the blue options screen (after a few minutes) but when you make a selection the screen goes back to black. This document explains how to set up VNC to show a full desktop session window from a Linux server, on your home PC or laptop, or office desktop PC. Fedora 5,6,7 won't run on my system so I downloaded CentOS 5 x86-64. This issue happens even if this icon is minimized. if I click in the black space of the terminal window, The answer is I needed startx to run after login. b ram: how to install cabal on centos 5. We shut down, allocated more space and expanded the C drive after. In the first article of the series, I’m going to start off setting up the web server using CentOS web panel. Introduction. The new technologies used include the tiltable control panel, quiet mode10 and simple solution keys. Configure, manage, and secure a CentOS 7 Linux server to serve a variety of services provided in a sustainable computer's infrastructure. I can access the terminal through Ctrl+Alt+F1. However when running the same on CentOS 7, my logs are filled with:. Then, i rebooted. After my system ran fine for a few months I ran into a great problem (which seems to be quite common, but the solutions provided by others didn't work out): When booting, I get to the GNU-Grub as well as the log-in screen. Then the black screen with only the mouse cursor which you can move around the screen, it never gets to the login or welcome screen. The post is written keeping in mind you have installed RHEL/CentOS Minimal Install which is preferred in Enterprise and production environment. This feature allows to set the screen resolution on the kernel side once (at boot), instead of after login from the display manager. After login in, however, the screen becomes black and remain black, while VBox manager preview showing the desktop. 6 amd-64 installer - any flavour. I created a raid 6 but i dont think thats the problem, as the boot process goes pretty far. I tried different media. GNOME is the most popular environment in the latest distributions of Linux. 4 [CentOS] CentOS 5. The "You need to restart your computer" alert indicates a kernel panic. Hi, We are using the Centos 7 for the scientific research (quantum espresso , VASP etc ). Anyone logging in via VNC gets the black screen treatment. In the Welcome Screen, user account names are listed, or in the case of only single account available, automatically selected to prompt for password. @gjacobse said in Screenconnect connects but only have black screen:. After installing CentOS 7, you may go ahead and start using the OS, but there are many things we can do. This happens to all the accounts on this computer. I tried different media. If your Windows 10 PC reboots to a black screen, just press Ctrl+Alt+Del on your keyboard. I am running VirtualBox 4. You have successfully configured xRDP on CentOS 7 / RHEL 7. The following is the output when I try to run startx from the terminal as root using ctrl-alt-f2:. I'm not an amazing Linux guru, I only know enough to be stupidly dangerous, but my Google-fu has failed me, and I'm desperate enough to try this. Distribution Release: CentOS 7-1810: Karanbir Singh has announced the release of CentOS 7-1810, the latest update in the CentOS 7 series, built from the source code of Red Hat Enterprise Linux 7. Upon first login after installation, the resolution default to 1152x864. After the installation run the command below to start the GNOME environment. screen that has a centos 7 design in the lower right hand side. After logging in there's just a black screen with a cursor left. Just as with screen -r, if there's only one screen running, you don't need to specify which screen you're connecting to: $ screen -x. The screen will go black but the mouse pointer is still visible. Bring a striking look to your website by means of stunning UI elements, animated banners, fonts, after effects, etc. Install CentOS-7 making sure that there is no Xorg. el7): after boot I only get a black screen with the cursor being the only. Hi, I just recently rebooted my laptop, but the screen turns black after loading the CentOS logo but before the login screen. 19 PVM Guests Based on CentOS 5 Do Not Start Successfully After Conversion from PVHVM. Getting XRDP from git to work on RHEL7 / CentOS 7. i686 on an i686 abcd0001 login: The machine name in front of the login: prompt should be your own Blackboard userid, not abcd0001. Huawei Releases openEuler, A CentOS-Based Linux Distribution. I get the login screen and I can type in my password, but then it goes right back to the login screen. Blank, black screen in Workstation on CentOS 7 Forums / NoMachine Terminal Server Products / Blank, black screen in Workstation on CentOS 7 This topic has 3 replies, 2 voices, and was last updated 3 years, 7 months ago by Britgirl. At first we thought that maybe the USB drive we were installing the OS from might be bad so we reformatted the drive with the CentOS image and tried again. 50 driver for a single GTX 1080 Ti card. The log-on screen showed, i typed my password, but it showed a black screen for 1 second, and returned to log-on screen. As of this very moment, you need to enable the Continuous Release repository, which will get emptied when the final CentOS 7. We get pulled away and then go back to what we are doing and there is a black screen that greets us. I don't have the root password so don't know if it happens with that account. It's been two weeks that ssh login, logout and using su. Hi, i just installed CentOS 7. I'm using Vmware pro workstation 14 in trial mode. 5 workstation. May 7, 2019 at 5:05 am. I logged in fine and tried several commands to no avail, including:. This is quick guide howto change runlevel on GRUB2. Login to CentOS. This path is only supported from the latest version of CentOS-6 (being 6. This page describes the new file structure and details how to the user can change the default settings used to create the boot menu. Update applied 12-28 caused the lock screen authentication to fail on two different x86_64 machines. The PIAF2 installer will whir away for about 15 minutes installing CentOS 6. Forums / NoMachine for Linux / Black Screen on login from Windows machine to Unix Red Hat Tagged: black-screen This topic has 2 replies, 2 voices, and was last updated 5 years, 3 months ago by hansa. Problem: You got a black screen in place of the friendly graphical login screen at the end of the Linux Mint boot sequence. The screen is completely black, there is no mouse pointer. I'm having a problem, with Centos 7. Bring a striking look to your website by means of stunning UI elements, animated banners, fonts, after effects, etc. The installer ran in graphical mode and looked fine. Do you have any suggestions before I uninstall nvidia? I'm running a reasonably fresh CentOS 7 install with gnome desktop option as well. This happens to all the accounts on this computer. when i restart my physiacl computer Virtualization: VMware Workstation 7 Available. The VNC Viewer desktop background turns into a full black screen intermittently. After CentOS installs and boots for the first time you may find that the desktop is not using the entire screen space available, leaving a black border around the desktop, or using a lower resolution than is supported by the monitor and display adapter. What you can do is choose Troubleshooting in the startup of the installer. Ctrl-Alt-Delete does bring up Task Manager, and from there I can launch a bunch of stuff was even able to start Firefox from command line, download Autoruns, etc. [bing_translator]Normally when you provision a Linux VM on Microsoft Azure, it's provisioned for you on the CLI mode which most of the Linux fans are fund of it but in case you would like to use the desktop experience and RDP to the machine instead of SSH to it, you will need to follow these simple steps. 10-netbook-i386. However, when I did that after I reboot right before the system loads the user login screen the display goes black, the signal to the monitor is not lost but the picture goes black. Changed the Boot Order in the Bios to boot from the Thumb Drive- A splash screen comes up and asks me if I want to load linux mint, LM compatibility mode, etc. Nothing else works. Install xrdp on CentOS 7 – xrdp CentOS Desktop. I've done all 3 of those solutions and it just sends me to the black screen after the loading circle. conf file and the splash screen image file resides in the /boot partition. target should be sufficient, although it is set to graphical. only after that forcement for a further time the power cycle then it works. I used to have K4200 and Tesla. It reboots, I get to the login screen with the drums, it looks like the desktop is going to fire up and then the screen goes black and the only thing active is the mouse pointer. Time really flies! It is December again and the year is coming to an end. Then the black screen with only the mouse cursor which you can move around the screen, it never gets to the login or welcome screen. I logged in as usual and the screen that was supposed to be my desktop was simply a black screen with a movable cursor. There is no login screen, only the VNC password prompt. After the device icon appears on the desktop, the device can mounted and unmounted by right-clicking on the device's icon itself. lock screen but shows a black. Changed the Boot Order in the Bios to boot from the Thumb Drive- A splash screen comes up and asks me if I want to load linux mint, LM compatibility mode, etc. When the message that “your system is running in low-graphics mode” appears, press Ctrl+Alt+F2, then login with your credentials Then type below commands # sudo apt-get update # sudo apt-get remove ubuntu-desktop # sudo apt-get install ubuntu-desktop # sudo shutdown -r now. The first and simple scenario in which the black screen can pop up is the incorrect work of the “explorer” process. After updating the CentOS machine it stuck at black screen and if check whether which package is failed to start,it hangs at certmonger package and doesn't get to the login screen. and get a message 'A start job is running for etc,rc. Saving the domain in the form of "mydomain\username" in your client login details causes the black screen. centos 7 installation issue, no login screen. 6, and has a new visual style and other minor enhancemets.