[Bug 89668] [BSW] HDMI screen becomes black after replug HDMI cable

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89668

--- Comment #9 from Jeff Zheng <jeff.zheng at intel.com> ---
Created attachment 115614
  --> https://bugs.freedesktop.org/attachment.cgi?id=115614&action=edit
dmesg after "testdisplay -a"

I'm not sure if this is issue of test machine rework. But this time my ASUS
VS239HR is black screen even when I reboot test machine. "testdisplay -i" shows
not HDMI connection. It's weired that if I run "testdisplay -a", HDMI monitor
shows fine for each mode. After "testdisplay -a" exits, HDMI monitor returns
black screen and "testdisplay -i" still shows not HDMI connection.

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