Bug#1002978: GPU hangs in all variations tried

I ran 18 reboot experiments last night to try to fix the problem. I reported the first couple of experiments in depth in previous notes. I also found and reported an interaction between setting the kernel command line option intel_idle.max_cstate=1 and using the Bullseye version of the firmware-r

Bug#1003921: firmware-realtek: firmware does not load if intel_idle.max_cstate=1 is entered on the command line

Package: firmware-realtek Version: 20161130-5~deb8u1 Severity: important Dear Maintainer, I have been trying to debug a problem with my Intel GPU. My Intel GPU performs badly unless intel_idle.max_cstate=1 is set as a grub command line option. However, several reboots later, I can prove that that

Bug#1002978: Another GPU hang

OK, now we know the i915 driver, in my environment is NOT fixed with just the microcode. I get GPU hangs whether the microcode is up-to-date or not. This boot had NO kernel command line options (besides Debian defaults): GRUB_CMDLINE_LINUX_DEFAULT="quiet pcie_aspm=force" I don't remember if I add

Bug#1002978: Another GPU hang

I rebooted with these grub config options: GRUB_CMDLINE_LINUX_DEFAULT="quiet pcie_aspm=force intel_idle.max_cstate=1" In addition to an almost immediate GPU hang, my r8169 driver Ethernet card failed to load its firmware causing a full network outage. I rebooted to see if it was a fluke, but no:

Bug#1002978: Another experiment, another GPU hang

My last experiment used these settings in /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet pcie_aspm=force intel_idle.max_cstate=1 i915.disable_power_well=1 i915.enable_dc=0" Although I had the GPU hang previously reported, the behavior wasn't too bad after that early blowup. So I didn't both

Bug#1002978: Another GPU hang

ains the output of 'cat /sys/class/drm/card0/error'. I am planning to reboot soon to try another test, since daily GPU hangs will slow my productivity unacceptibly. I need to keep debugging in the hopes that I can find a solution. -- CJ Fearnley | LinuxForce Inc. c.

Bug#1002978: linux-image-5.10.0-10-amd64: Upgrade from Jessie to Bullseye produces frequent and painful INTEL i915 GPU Hangs

Package: src:linux Version: 5.10.84-1 Severity: important Dear Maintainer, Video on this system was pretty fast under Jessie. My notes suggest there may have been issues when I upgraded to Stretch in 2018. I upgraded to Buster in May 2021 and experienced some video hangs and slowness switching de