Sched error 20
Several years ago, I struggled a lot with sched error 20 on my Linux laptop. In case anyone is still encountering this error today, I’m posting the guide I used back then to fix it. I hope it helps
How to Disable Nouveau via GRUB
Open the Terminal: Copy and paste the following command into your terminal:
sudo nano /etc/default/grubEnter your password when prompted and press Enter.
Locate the Line: Use your arrow keys to navigate to the line that reads:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"Edit the Configuration: Modify the line so it looks exactly like this:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nouveau.modeset=0"Save and Exit: Press Ctrl + X, then press Y, and finally press ENTER to save your changes.
Update GRUB: Copy and paste this command into the terminal and press Enter:
sudo update-grubRestart: Reboot your computer, and everything should now work correctly.
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