Hi Am 20.11.20 um 10:52 schrieb David Laight:
Hi DavidAm 18.11.20 um 23:01 schrieb David Laight:...Did you try Daniel's suggestion of testing with the direct parent commit?(I was on holiday yesterday and didn't want to spend a sunny afternoon doing bisects.)
Makes sense :)
I've just done that and it is bad. Is there any way to bisect through the parts of the drm merge patch into v5.10-rc1 ? That ought to be quicker (and less error prone) than the bisect builds I was doing. Note that the stack 'splat' is due to a later change. It is separate from the broken pixel alignment. I actually saw the vga text go 'funny' while the boot was outputting all the [OK] messages (from systemd?) before the graphic login stole tty1 (bloody stupid to use tty1). I don't need to use the failing system today, I'll have another go at isolating the failure.
You can use drm-tip for testing, where many of the DRM patches go through. https://cgit.freedesktop.org/drm/drm-tip/ It's fairly up-to-date.I have two systems with AST chips and neither shows any of the symptoms you describe; nor do we have such reports about drivers that use a similar stack (hibmc, bochs). Could you provide the output of
dmesg | grep drm Best regards Thomas
David
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