Re: kern/58026: amdgpu suspend/resume almost works

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

The following reply was made to PR kern/58026; it has been noted by GNATS.

From: Taylor R Campbell <riastradh%NetBSD.org@localhost>
To: mrg%NetBSD.org@localhost
Cc: gnats-bugs%NetBSD.org@localhost, netbsd-bugs%NetBSD.org@localhost, macallan%NetBSD.org@localhost
Subject: Re: kern/58026: amdgpu suspend/resume almost works
Date: Mon, 11 Mar 2024 11:01:01 +0000

 > after suspend/resume cycle where X11 was the active console, the
 > display shows a blank screen with a cursor in the top-left, and
 > requires switching the vt away from X and then back to it, where it
 > works fine.  it seems like the display is left in "text" mode at
 > this point..
 
 I see this on my Thinkpad T480 with Intel graphics too.  Annoying but
 I never got around to tracking it down.  Probably involves spelunking
 through the same logic as the usl_detachtimeout state machine horror.
 But we should fix it even if that sounds like an unappetizing
 adventure.