[Bug 99659] [KBL] Display Flashing Every Few Seconds

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99659

Jani Nikula <jani.nikula at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #3 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to viveksjain from comment #2)
> Finally managed to fix it! Turns out when I use Ubuntu in BIOS mode (rather
> than UEFI) it works perfectly. I'm guessing it's some compatibility issue
> with my Gigabyte H270N-WIFI motherboard. Had no idea EFI problems could
> cause strange display issues like this.
> 
> If you know where to report the UEFI issue, please let me know. Otherwise
> I'm just happy it's fixed.

Probably caused by the OEM (intentionally or unintentionally) creating a
different VBT (Video BIOS Table) for UEFI and legacy boots, and only testing
with what Windows uses i.e. UEFI. This is not unusual.

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