I've already disabled the .timer units for the Pomodoro sounds.

I'll investigate the kernel angle.

Here's an odd angle:  Could this be a Vulkan issue?  I picked up on a
thread that pre-Haswell GPUs and integrated CPUs may have trouble
implementing Vulkan.  Graphics are discrete but my CPU is a Xeon
E5-2609v2 (Ivy Bridge).  The original manifestation of the GUI hang was
xorg locking up one of my CPU cores.  That was with driver 390, and the
original thread was being addressed at VMware, with the fix being
disable or reconfigure Vulkan or its timeout.  See
https://communities.vmware.com/t5/VMware-Workstation-Pro/VM-
Crash-16-2-1-build-18811642/m-p/2906574/emcs_t/S2h8ZW1haWx8dG9waWNfc3Vic2NyaXB0aW9ufEwySlVMWUVLSzRSU0VNfDI5MDY1NzR8U1VCU0NSSVBUSU9OU3xoSw#M175498

The CPU lockup was seen in the Nvidia forums as a matter of CPU offload
that shouldn't have happened (overaggressive power management couldn't
up-cycle the GPU before a rendering timeout offloaded to the CPU).
Maybe the CPU lockup in my case wasn't because of the offload per se,
but that the CPU's architecture didn't fully support the Vulkan-mode
rendering being offloaded to it.

While this was being run down, my PSU failed, taking my HDDs with it
(yay backups!).  Whereas driver 390 was all that could get 20.04 running
in 2020, driver 470 worked better with 20.04.4 last month and the CPU
lockups ceased, if not the GUI freezes.  Not a surprise that CPU
offloading was better handled in 470 two years later, but perhaps Vulkan
is still baked into the pie and my CPU's response to it is still
throwing things off.

I'll note there are null characters being thrown about, and random
division errors, not to mention occasional invalid packets.  These
suggest a wrench still in the works.  Thoughts?

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1970072

Title:
  [nvidia] Frequent GPU Resets (and GUI Freeze) by gsd-media-keys

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-470/+bug/1970072/+subscriptions


-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to