[Bug 106659] [hdmi retimer?] No signal after switch from HDM1 to HDM2 and return in HDM1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106659

--- Comment #33 from Imre Deak <imre.deak at intel.com> ---
(In reply to fatez from comment #31)
> Created attachment 140683 [details]
> dmesg

Hm, this log tells me that HDMI-A-2 is never in a connected state. IIUC, in
your bug report the bad sequence is:
1. Display plugged to HDMI-A-1   (works ok)
2. Display unplugged from HDMI-A-1 and plugged to HDMI-A-2 (works ok)
3. Display unplugged from HDMI-A-2 and plugged to HDMI-A-1 (doesn't work)

- So step 2. should be ok, but in your log HDMI-A-2 is never connected. So is 
  HDMI-A-2 working for you? If so could you double check that your log includes 
  the part where HDMI-A-2 is plugged and works ok?

- Could you provide the followings found on the back of the NUC (some may be 
  missing):
  - Product code
  - Project code
  - Date of manufacture

- Does the problem happen all the time?

- After the problem happens, could you do
  # echo detect > /sys/class/drm/card0-HDMI-A-1/status
  and then provide a dmesg log

Thanks.

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