[Bug 97013] VGA detection fails Intel i915

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97013

--- Comment #2 from Benjamin Antin <ben.antin at endlessm.com> ---
For clarity:

When we force port B to be used the VGA port correctly. Currently, we are using
a DMI match as a workaround so that we force port B to be used on the X441SA –
but this is not a real solution. 

We have not been able to get a dump of the vbios; when we run 
cat /sys/devices/pci0000:00/0000:00:02.0/rom > vbios.dump
we get "Input / Output Error." Running intel_dump_bios gives the same error
message. I am attaching the output of the intel_opregion_decode command as well
as the output of intel_reg dump --all.

In the case mentioned here: https://bugs.freedesktop.org/show_bug.cgi?id=96321
It seems that the VBT had the correct information. If there is a way to get
past the input/output error and see contents of VBT I will be more than happy
to post the results.

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