[Nouveau] [Bug 108022] Cannot resume from standby - Link training fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108022

--- Comment #3 from Barry G <barry at grussling.com> ---
Created attachment 141691
  --> https://bugs.freedesktop.org/attachment.cgi?id=141691&action=edit
dmesg with 4.19-rc4 plus

Upgraded to:
4.19.0-rc4-1-barrgr-00089-g6ad49fa1993d

Same general issue.  Got some new "gr:" lines.  Full dmesg attached.

A few things I have noticed:
* The unplug/replug monitor thing doesn't always fix it.  Sometimes they just
stay off.
* If I run "xset dpms force standby" and wait 5-10 seconds and move the mouse
it seems to always come back (5 tests).
* If I run "xset dpms force standby" and wait 40 seconds and move the mouse it
seems to NOT come back (3 tests).

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