[Bug 110689] [CI][DRMTIP] igt at kms_* - dmesg-warn - WARN_ON(intel_wait_for_register(&dev_priv->uncore, regs->driver, (0x1 << ((pw_idx) * 2)), (0x1 << ((pw_idx) * 2)), 1))

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110689

Imre Deak <imre.deak at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
      i915 features|display/DSI                 |CI Infra
                 CC|                            |tomi.p.sarvela at intel.com

--- Comment #3 from Imre Deak <imre.deak at intel.com> ---
There is an HDMI monitor plugged into the port C connector, but icl-dsi doesn't
support this:

<7>[   11.547665] [drm:intel_bios_init [i915]] Port C VBT info: DP:0 HDMI:1
DVI:1 EDP:0 CRT:0 TCUSB:1 TBT:1

(meaning port C is not configured for legacy TypeC mode as it should be for
HDMI, rather in DP/TBT-alt TypeC mode).

If the RVP has the F08 rework for HDMI, then the proper BIOS needs to be
flashed on it and the corresponding BIOS setup (advanced/system
agent/display/portX) applied.

If the rework is not done on the RVP (and/or we don't want to test HDMI on this
machine) then we have to make sure not to connect any HDMI monitor to it.

It's also strange why the HDMI monitor appears only in the middle of the test
run (and is not connected during booting), but I think it's not worth
investigating that, before fixing the machine configuration.

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