On Sat, 2021-02-20 at 20:47 +0800, Ed Greshko wrote:
On 20/02/2021 19:41, Patrick O'Callaghan wrote:
> The last 2 or 3 kernel updates seem to have triggered a regression in
> the i915 (internal Intel GPU) driver. I get damaged screen updates,
> very noticeable tearing on videos and occasional freezes in the DE
> (Plasma under X11). A look at the journal shows:
> Feb 19 16:33:16 Bree kernel: i915 0000:00:02.0: [drm] GPU HANG: ecode 7:1:cbd2d2d2,
in chrome 
> Feb 19 16:33:16 Bree kernel: GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
> Feb 19 16:33:16 Bree kernel: The GPU crash dump is required to analyze GPU hangs, so
please always attach it.
> Unfortunately I'd rebooted before looking at the journal, so
> /sys/class/drm/card0/error is currently empty. I'll capture it next
> time around, but it the meantime has anyone else seen this?
Don't have this HW. But a quick search suggests adding "nomodeset" to the
As I understand it, that could have a big impact on graphics
performance. I'll try it as a last resort, but currently I'm keeping a
working kernel (kernel-core-5.10.12-200.fc33.x86_64) and testing each
new one as it appears.
I filed a BZ at https://bugzilla.redhat.com/show_bug.cgi?id=1931065
which I see now has some comments.