Tag Archives: The system is running in low-graphics mode

The system is running in low-graphics mode

An error was reported when starting Ubuntu:

Problem description

Solution 1

When the message that “your system is running in low graphics mode” appears, press Ctrl + Alt + F1, then login with your credentials. And then, run the following commands: sudo apt get install — re install Ubuntu desktop. Sudo reboot

Solution 2
1

Lightdm failed to start. The red failed prompt is at the far right of the figure above. The error that caused the boot prompt to appear at the beginning

After my practical verification, I found a very effective solution

The first step is to press and hold Ctrl + Alt + F2 ~ F6 to enter the command line mode of Ubuntu

The second step is to type the following command:

sudoapt-getinstallgdm

Since GDM is a display manager program, the failed lightdm is replaced by GDM

Step three, restart

reboot

So far, the problem has been solved. At least we can enter the GUI interface again. It’s just different from the cool login interface before. After all, GDM and lightdm are different software

[Solved] Ubuntu Warning: The system is running in low-graphics mode

After checking the Internet for a number of solutions, I finally found one that fits my problem here, cited below.

I have recently received a similar issue with myPangolin Performance laptop. The folks at System 76 told me to do the following:

Click Okay and then select the option to get a terminal. (alternatively you can press ctr+alt+f1 to bring up another tty)

sudo chown lightdm:lightdm -R /var/lib/lightdm
sudo chown avahi-autoipd:avahi-autoipd -R /var/lib/avahi-autoipd
sudo chown colord:colord -R /var/lib/colord
sudo reboot

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Attachment: there is another way to install network card driver on the Internet

# For the latest Nvidia binary drivers.

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install nvidia-current nvidia-current-modaliases nvidia-settings

# For the latest ATI/AMD binary drivers.

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install fglrx

I installed the NVIDIA driver. After restarting, I entered the login interface. After entering the user name and password, I still couldn’t enter the desktop. I kept circulating in the login interface. The solution is as follows:

alternatively you can press ctr+alt+f1 to bring up another tty

To uninstall NVIDIA driver:

sudo apt-get remove --purge nvidia-*
sudo apt-get install ubuntu-desktop
sudo rm /etc/X11/xorg.conf
echo 'nouveau' | sudo tee -a /etc/modules
#restart
sudo reboot

After restart

Reason search:

When there is a circular login problem, you can enter the shell according to the above method and find the. Xsession errors file in the home directory

# cd home check.xsession-errors
cd ~
ls -a
vi .xsession-errors

Then you can see the information in the log, according to the information in the log to Baidu, maybe you can solve the problem of driver installation