[Bug 93124] [BSW BAT IGT] pm_rpm doesn't support output restrictions

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93124

--- Comment #3 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
(In reply to Daniel Vetter from comment #2)
> 
> The machine is bsw-nuc-2 (we only have 1 bsw in CI).
> 
> Afaik the issue is that this bsw machines only supports outputs that work on
> pipe C (as can be seen that the crc-pipe tests skip for both A and B), but
> pm_rpm only tries to light up pipe A. The fix is to teach pm_rpm to try any
> of the crtc, if pipe A can't be light up).

To clarify a bit more; The machine has HDMI on port D, and DP->VGA bridge on
port B or C (can't recall which). Port D can be driven with pipe C only, port
B/C can be drive with pipe A/B only. We have only HDMI plugged in so we need to
use pipe C. We could work around the problem by plugging something into the VGA
connector, but it would be better to fix the test instead.

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