[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 #82 from Eric Johansson <eric.johansson at hush.com> ---
Comment on attachment 129790
  --> https://bugs.freedesktop.org/attachment.cgi?id=129790
/sys/kernel/debug/dri/0/i915_vbt for bios and uefi mode

I have an HP EliteOne 800 G2 23-in Non-Touch All-in-One PC which also has the
Bang & Olufsen logo at the top left of the screen. I have the exact same
problem as described with the graphics. When I switch from BIOS mode (default)
on the computer to UEFI mode the graphics started to work as expected.

I am now running Ubuntu 16.04.2 LTS with kernel 4.8.0-36-generic. In case
anyone would like to try figure out why the graphic is not working in BIOS mode
I got the suggestion of providing /sys/kernel/debug/dri/0/i915_vbt for both
modes so I did "cat /sys/kernel/debug/dri/0/i915_vbt > /tmp/i915_vbt-mode" and
have attached tar.gz of those two files.

Best regards, Eric

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