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Date:      Thu, 01 Feb 2024 01:10:10 +0000
From:      bugzilla-noreply@freebsd.org
To:        x11@FreeBSD.org
Subject:   maintainer-feedback requested: [Bug 276757] graphics/drm-515-kmod: Black screen freeze (RX 6600, FreeBSD-14.0-RELEASE-p3)
Message-ID:  <bug-276757-7141-HEgX9dS7JC@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-276757-7141@https.bugs.freebsd.org/bugzilla/>
References:  <bug-276757-7141@https.bugs.freebsd.org/bugzilla/>

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Bugzilla Automation <bugzilla@FreeBSD.org> has asked freebsd-x11 (Nobody)
<x11@FreeBSD.org> for maintainer-feedback:
Bug 276757: graphics/drm-515-kmod: Black screen freeze (RX 6600,
FreeBSD-14.0-RELEASE-p3)
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276757



--- Description ---
Whenever X11 has been running for roughly 4,5 - 5 hours (although sometimes
(rarely) this happens in just some tens of minutes) both my screens go blac=
k,
and I have to hard reset my PC (i.e.: press the reset button on the front of
the case) to get a working system again.

It's important to note that this doesn't panic or fully crash the system, a=
udio
still works, and it doesn't panic, but it's effectively useless, and the
screens will not come back on no matter what.

I'm using an RX 6600 with 2 displays: 1 DP display @ 1920x1080 165hz, and 1
HDMI display @ 1920x1080 60hz. I'm also using the xf86-video-amdgpu driver =
with
XDM as my display manager and DWM as my window manager.=20

I believe this is an issue in drm-515-kmod as /var/log/messages includes so=
me
drm-related errors when this "crash" happens. Mainly stuff about "waiting f=
or
fences timed out" and "GPU reset failed". I initially had the same issues a=
s in
bug #274770, but the panics were fixed with compiling drm-kmod from the
5.15-lts-focal branch, and I now have these black screen freezes instead.

Apologies if this makes this a duplicate, but as that one isn't very active=
 and
not exactly about the same issue (no panics or anything), I thought i'd try
opening a new bug specifically for the black screen freeze.

I doubt this is a hardware issue, as my GPU works flawlessly under OpenBSD =
7.4
and Linux. Under Windows I get some weird artifacting and screen resets
occasionally, but that sounds like a driver issue as it works on OpenBSD &
Linux.

I've attached my /var/log/messages file which contains the drm-related erro=
rs.
I've also done a hw-probe, it's at https://bsd-hardware.info/?probe=3Db41ed=
8f957



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