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I installed Ubuntu 20.04 yesterday, and it frequently freezes, Everything just stops, but I can move my mouse cursor (Can't click anything though). The only thing I can do is a hard reboot.

I don't know if it's the gpu drivers issue, I couldn't find the drivers for my GPU AMD Radeon HD 8750. I'm pretty new to Linux and I could really use some help.

Praneeth Katuri
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  • It doesn't :(. I've looked at that answer before posting here. – Praneeth Katuri Aug 25 '20 at 04:54
  • What are the hardware specs? How much RAM you have? – Pilot6 Aug 25 '20 at 06:49
  • Intel i7-4790 @ 3.6Ghz, 16 gigs of RAM and GPU: AMD Radeon HD 8750. Anything else? – Praneeth Katuri Aug 25 '20 at 08:04
  • And I don't think amdgpu/amdgpu-pro drivers exist for my gpu since it's old, currently I'm just using Radeon. Also, I don't know if this is important but I first installed 20.04, it had the same freezing issue where I can move my cursor but not click anything, I assumed something went wrong with the installation, I removed it and installed 18.04 instead, it's still happening. – Praneeth Katuri Aug 25 '20 at 08:39

1 Answers1

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Encountered a similar issue a week ago, browsed many linux forums and turns out it was due to Unstable Graphic Drivers.

Backstory

I had Nouveau drivers installed, I tried to update to the latest drivers using sudo ubuntu-drivers autoinstall followed by a reboot. I was able to login successfully but couldn't click anything on the desktop but my pointer was moving, hard rebooting was the only way out.

What can be done

  1. On the login screen, type ctrl+Alt+F2 to get a TTY. Login using your name and password.
  2. Remove your graphic drivers using sudo amdgpu-pro-uninstall(In my case it was NVIDIA sudo apt-get purge nvidia*).
  3. Type in the command sudo apt-get install --reinstall xserver-xorg-video-radeon followed by
  4. sudo apt install xserver-xorg
  5. sudo update-initramfs -u -k all
  6. Reboot the system to apply the changes using sudo reboot.
  • Update to a stable/recommended driver but not to the latest driver available if you do not know the consequences. I reinstalled my OS 4 times in the last 12 months, It was an Nvidia driver issue 3 out of 4 times.
Jarus
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  • Apparently it's due to over queueing of frames, and setting the environment variable _GL_MaxFramesAllowes=1 solves the issue, it hasn't frozen yet after I did this, I'm not sure why or how it works though or if there's another fix. – Praneeth Katuri Aug 24 '20 at 07:55
  • Okay Update, it did not help, I'll try this and get back to you, surprisingly I don't even have AMD drivers installed I think, amdgpu-pro-uninstall gives a no command error – Praneeth Katuri Aug 25 '20 at 04:52
  • Didn't help, I reinstalled xserver-xorg-video-radeon, I didn't remove the amdgpu-pro drivers because apparently I didn't have any. It still froze – Praneeth Katuri Aug 25 '20 at 08:08