[Bug 97822] Split screen/display corruption issue on HP EliteOne 800 G2 23-in Touch AIO

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97822

--- Comment #17 from r.r.arends at hr.nl ---
(In reply to r.r.arends from comment #16)
> (In reply to Jani Nikula from comment #15)
> > (In reply to r.r.arends from comment #14)
> > > (In reply to Jani Nikula from comment #8)
> > > > At a glance, the screenshots look like the image is vertically scaled to
> > > > half. Is that right?
> > > > 
> > > > Is the image all right at boot and in the bios and grub screens?
> > > > 
> > > > If so, please grab the tools/intel_reg tool from intel-gpu-tools [1], and
> > > > provide 'intel_reg dump' output for 1) when i915 has not been loaded yet,
> > > > and 2) after i915 has loaded.
> > > 
> > > Yes the image is all right at boot and in the bios and grub screens.
> > 
> > What if you add i915.fastboot=1 module parameter? (If it works, it'll work
> > for the boot, but I expect it to fail after the first modeset or
> > suspend/resume.)
> 
> Same result, it fails to the halfsize split screen.

A video of the boot: https://www.youtube.com/watch?v=_g65etG_Vak

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