[Bug 93220] [SKL] Can't detect external monitor via HDMI after 2nd hotplug

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93220

--- Comment #15 from Gary Wang <gary.c.wang at intel.com> ---
Created attachment 120560
  --> https://bugs.freedesktop.org/attachment.cgi?id=120560&action=edit
failed log for this issue on 12/17

Hi Jim, I used the latest Gfx SKL firmware for verifying it, the issue was
reproduced, please refer the log.

skldmcver123.tar.bz2
sklgucver43.tar.bz2

It could reproduce it by several system rebooting. I only reproduce it with HP
LP2475w monitor, and cannot reproduce it with SONY 4k HDMI TV.

I will try to verify it again in xinit mode.

Hi Timo, 
Do you know how to disable nVidia module for test only?

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