[Bug 107103] External monitor flickering after screen turns on after inactivity

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107103

--- Comment #5 from Jethro Beekman <freedesktop-bugs at jbeekman.nl> ---
Created attachment 141454
  --> https://bugs.freedesktop.org/attachment.cgi?id=141454&action=edit
dmesg logs during issue with debug=0x1e

This just happened today.

Same hardware.

mesa 18.1.7-1
linux 4.18.5.arch1-1
xorg-server 1.20.1-1
xf86-video-intel 1:2.99.917+831+ge7bfc906-1

I didn't have the debugging active during boot, but I was able to turn it on in
/sys/module/drm/parameters when it started happening. Logs attached. The first
message at 21:55:21 seems to be about when I first "wiggled the mouse" to
unlock my desktop. After that it took me a few minutes to find this bug with
the debugging instructions.

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