NetBSD Problem Report #57387

From jmclists@jmcunx.com  Mon May  1 18:03:25 2023
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Date: Mon, 1 May 2023 14:03:14 -0400
From: John McCue <jmclists@jmcunx.com>
To: gnats-bugs@NetBSD.org
Subject: External Monitor corruption, 10.0 BETA

>Number:         57387
>Category:       port-amd64
>Synopsis:       External Monitor corruption
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-amd64-maintainer
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon May 01 18:05:00 +0000 2023
>Closed-Date:    Sun Mar 17 01:30:29 +0000 2024
>Last-Modified:  Sun Mar 17 01:30:29 +0000 2024
>Originator:     John McCue
>Release:        NetBSD 10.0_BETA
>Organization:
	just me
>Environment:
         see File netbsd_ident.txt in
         https://github.com/jmcunx/nconfig/blob/main/netbsd_ident.txt
System: NetBSD neutron.jmcunx.com 10.0_BETA NetBSD 10.0_BETA (GENERIC) #0: Tue Apr 25 16:17:59 UTC 2023 mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
	Under heavy load, the screen for my External Monitor
         gets corrupted.  The monitor is an ACER Model V276HL.
         This is on a Thinkpad T420.
         https://github.com/jmcunx/nconfig
         contains various configs and a screen print.
         This does not occur when using only the Laptop Screen.
>How-To-Repeat:
	Start a long running process with a high CPU load,
	usually within 1 hour corruption starts.
         Config files with a screen print can be seen in:
         https://github.com/jmcunx/nconfig
>Fix:
	I need kill my background process and restart X,
         I know of no other fix.

>Release-Note:

>Audit-Trail:
From: John McCue <jmclists@jmcunx.com>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-amd64/57387
Date: Mon, 1 May 2023 15:53:10 -0400

 I tried other tests and noticed the following:

 1. X11/picom has no effect, some sites said it would help.

 2. This is the interesting, I kicked off my heavy process
     and it was executing without corrupting X for a while.
     I then started gvim(1) 9.0.960 and instantly X was corrupted.
     I wonder if it could be related to gtk3 ?


From: John McCue <jmclists@jmcunx.com>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-amd64/57387
Date: Mon, 1 May 2023 16:38:34 -0400

 I decided to remove package:
      vim-gtk3-9.0.0960
 and installed
      vim-motif-9.0.0960

 That made no difference, the issue also occurred with
 vim-motif-9.0.0960

From: John McCue <jmclists@jmcunx.com>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-amd64/57387
Date: Sat, 16 Mar 2024 14:46:22 -0400

 I would recommend this be closed.

 After testing through the various RCs, I believe the issue
 has something to do with xdm(8) and X Org.

 When I use startx(1), all works fine, when I run via xdm(8)
 the issue will occur after a heavy process has been executing
 after about 1 hour.

 I will create a new PR after additional testing on RC6 if I
 think one is needed.

 Thanks
 John

State-Changed-From-To: open->closed
State-Changed-By: riastradh@NetBSD.org
State-Changed-When: Sun, 17 Mar 2024 01:30:29 +0000
State-Changed-Why:
closed by submitter's request


>Unformatted:
 	10.0_BETA NetBSD 10.0_BETA (GENERIC) #0: Tue Apr 25 16:17:59 UTC 2023

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