I have the same effects as the description with the following graphics card:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV630 PRO [Radeon HD 2600 PRO AGP] - IRCC Ubuntu 16 would not spot any problems. - Lubuntu 18.04 kernel 4.15.0-88-generic would spot the problem very seldom, at undetermined situations. You can live with the problem... - Lubuntu 20.04 kernel 5.4.0-39-generic the problem is reproducible deterministacally with certain actions. Opening specific websites, or simply open a video with VLC (you cannot live with the problem) ** Attachment added: "journalctl" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1707695/+attachment/5387984/+files/radeon_error_5.4.39 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1707695 Title: radeon 0000:03:00.0: ring 0 stalled for more than 10000msec To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1707695/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs