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 Content preview:  Issue: Emacs display is very buggy and unusable after latest
    Fedora 38 software updates. Laptop:OS: Fedora 38 (patches updated as of 1/10/2024)cpu:
    Intel(R) =?UTF-8?Q?Core=E2=84=A2?= i7-2670QM CPU @ 2.20GHz Emacs: GNU [...] 
 
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Issue: Emacs display is very buggy and unusable after latest Fedora 38 soft=
ware updates.
Laptop:OS: Fedora 38 (patches updated as of 1/10/2024)cpu: Intel(R) Core=E2=
=84=A2 i7-2670QM CPU @ 2.20GHz
Emacs: GNU Emacs 28.3 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.24.=
38, cairo version 1.17.8) of 2023-09-23

On my laptop, updated fedora version 38 with latest patches andgetting very=
 buggy behavior display rendering.
I am seeing these issues in my emacs editing sessions. Not sure ifthey happ=
en outside of emacs just yet.Btw, I am using the emacs version that came wi=
th Fedora 38, as Iusually do.
While editing buffers in emacs, the display is not updating properly.The po=
int/cursor in multiple locations of the buffer as opposed to justone.Scroll=
ing in a buffer displays remnant text that should have scrolledby on previo=
us lines no longer on the screen.
Moving the point(cursor in a buffer), can make the display to go crazyand d=
isplay the checker board pattern in the entire emacs window!In addition, th=
is checkerboard pattern remains on the entire emacs window for a few second=
s!
PS: I have only seen this behavior in my emacs session as of thismorning wh=
en I updated fedora with its regular updates for version 38.I did not upgra=
de to Fedora 39 just yet.
Also, I have been using Fedora and emacs combo on this same laptop since Fe=
dora single digit version and never seen this problem before.
Thanks,

-S




|  | Virus-free.www.avg.com |


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<html><head></head><body><div class=3D"ydpc859edeayahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px=
;"><div dir=3D"ltr" data-setdir=3D"false"><div>Issue: Emacs display is very=
 buggy and unusable after latest Fedora 38 software updates.</div><div><br>=
</div><div>Laptop:</div><div>OS: Fedora 38 (patches updated as of 1/10/2024=
)</div><div>cpu: Intel(R) Core=E2=84=A2 i7-2670QM CPU @ 2.20GHz</div><div><=
br></div><div>Emacs: GNU Emacs 28.3 (build 1, x86_64-redhat-linux-gnu, GTK+=
 Version 3.24.38, cairo version 1.17.8) of 2023-09-23</div><div><br></div><=
div><br></div><div>On my laptop, updated fedora version 38 with latest patc=
hes and</div><div>getting very buggy behavior display rendering.</div><div>=
<br></div><div>I am seeing these issues in my emacs editing sessions. Not s=
ure if</div><div>they happen outside of emacs just yet.</div><div>Btw, I am=
 using the emacs version that came with Fedora 38, as I</div><div>usually d=
o.</div><div><br></div><div>While editing buffers in emacs, the display is =
not updating properly.</div><div>The point/cursor in multiple locations of =
the buffer as opposed to just</div><div>one.</div><div>Scrolling in a buffe=
r displays remnant text that should have scrolled</div><div>by on previous =
lines no longer on the screen.</div><div><br></div><div>Moving the point(cu=
rsor in a buffer), can make the display to go crazy</div><div>and display t=
he checker board pattern in the entire emacs window!</div><div dir=3D"ltr" =
data-setdir=3D"false">In addition, this checkerboard pattern remains on the=
 entire emacs window for a few seconds!</div><div><br></div><div>PS: I have=
 only seen this behavior in my emacs session as of this</div><div>morning w=
hen I updated fedora with its regular updates for version 38.</div><div>I d=
id not upgrade to Fedora 39 just yet.</div><div><br></div><div>Also, I have=
 been using Fedora and emacs combo on this same laptop since Fedora single =
digit version and never seen this problem before.</div><div><br></div><div>=
Thanks,</div><div><br></div><div><br></div></div><div dir=3D"ltr" data-setd=
ir=3D"false">-S</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div =
class=3D"ydpc859edeasignature"><div><br><br></div></div></div><div id=3D"DA=
B4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br><table style=3D"border-top: 1px sol=
id #D3D4DE;"><tr><td style=3D"width: 55px; padding-top: 13px;"><a href=3D"h=
ttp://www.avg.com/email-signature?utm_medium=3Demail&utm_source=3Dlink&utm_=
campaign=3Dsig-email&utm_content=3Dwebmail" target=3D"_blank"><img src=3D"h=
ttps://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-green-avg-v=
1.png" alt=3D"" width=3D"46" height=3D"29" style=3D"width: 46px; height: 29=
px;"></a></td><td style=3D"width: 470px; padding-top: 12px; color: #41424e;=
 font-size: 13px; font-family: Arial, Helvetica, sans-serif; line-height: 1=
8px;">Virus-free.<a href=3D"http://www.avg.com/email-signature?utm_medium=
=3Demail&utm_source=3Dlink&utm_campaign=3Dsig-email&utm_content=3Dwebmail" =
target=3D"_blank" style=3D"color: #4453ea;">www.avg.com</a></td></tr></tabl=
e><a href=3D"#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width=3D"1" height=3D"1=
"></a></div></body></html>
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X-Loop: help-debbugs@HIDDEN
From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Sunil Matta <mattasunil@HIDDEN>
Subject: bug#68390: Acknowledgement (Emacs display rendering problem)
Message-ID: <handler.68390.B.170499576310228.ack <at> debbugs.gnu.org>
References: <2018661303.242257.1704995410922@HIDDEN>
X-Gnu-PR-Message: ack 68390
X-Gnu-PR-Package: emacs
Reply-To: 68390 <at> debbugs.gnu.org
Date: Thu, 11 Jan 2024 17:57:02 +0000

Thank you for filing a new bug report with debbugs.gnu.org.

This is an automatically generated reply to let you know your message
has been received.

Your message is being forwarded to the package maintainers and other
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--=20
68390: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D68390
GNU Bug Tracking System
Contact help-debbugs@HIDDEN with problems


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From: Eli Zaretskii <eliz@HIDDEN>
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> Date: Thu, 11 Jan 2024 17:50:10 +0000 (UTC)
> From:  Sunil Matta via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN>
> 
> Issue: Emacs display is very buggy and unusable after latest Fedora 38 software updates.
> 
> Laptop:
> OS: Fedora 38 (patches updated as of 1/10/2024)
> cpu: Intel(R) Core™ i7-2670QM CPU @ 2.20GHz
> 
> Emacs: GNU Emacs 28.3 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.24.38, cairo version
> 1.17.8) of 2023-09-23
> 
> On my laptop, updated fedora version 38 with latest patches and
> getting very buggy behavior display rendering.

Is this on text-mode frames or on GUI frames?

> I am seeing these issues in my emacs editing sessions. Not sure if
> they happen outside of emacs just yet.
> Btw, I am using the emacs version that came with Fedora 38, as I
> usually do.
> 
> While editing buffers in emacs, the display is not updating properly.
> The point/cursor in multiple locations of the buffer as opposed to just
> one.
> Scrolling in a buffer displays remnant text that should have scrolled
> by on previous lines no longer on the screen.
> 
> Moving the point(cursor in a buffer), can make the display to go crazy
> and display the checker board pattern in the entire emacs window!
> In addition, this checkerboard pattern remains on the entire emacs window for a few seconds!
> 
> PS: I have only seen this behavior in my emacs session as of this
> morning when I updated fedora with its regular updates for version 38.
> I did not upgrade to Fedora 39 just yet.

This is almost certainly not a problem with Emacs, but with your video
drivers and X libraries.  If you have some "optimization" features in
your display driver settings, try disabling them and see if the
problems go away.

Thanks.




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From: Eli Zaretskii <eliz@HIDDEN>
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> Date: Fri, 12 Jan 2024 22:23:39 +0000 (UTC)
> From: Sunil Matta <mattasunil@HIDDEN>
> 
> On Thursday, January 11, 2024 at 02:15:31 PM EST, Eli Zaretskii <eliz@HIDDEN> wrote: 
> 
> > Date: Thu, 11 Jan 2024 17:50:10 +0000 (UTC)
> > From:  Sunil Matta via "Bug reports for GNU Emacs,
> >  the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN>
> > 
> > Issue: Emacs display is very buggy and unusable after latest Fedora 38 software updates.
> > 
> > Laptop:
> > OS: Fedora 38 (patches updated as of 1/10/2024)
> > cpu: Intel(R) Core™ i7-2670QM CPU @ 2.20GHz
> > 
> > Emacs: GNU Emacs 28.3 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.24.38, cairo version
> > 1.17.8) of 2023-09-23
> > 
> > On my laptop, updated fedora version 38 with latest patches and
> > getting very buggy behavior display rendering.
> 
> Is this on text-mode frames or on GUI frames?
> 
> This is in gui frames mode. I didnt realize that there was a text mode.
> I am running emacs in server mode and window-system == 'x'
> 
> > I am seeing these issues in my emacs editing sessions. Not sure if
> > they happen outside of emacs just yet.
> > Btw, I am using the emacs version that came with Fedora 38, as I
> > usually do.
> > 
> > While editing buffers in emacs, the display is not updating properly.
> > The point/cursor in multiple locations of the buffer as opposed to just
> > one.
> > Scrolling in a buffer displays remnant text that should have scrolled
> > by on previous lines no longer on the screen.
> > 
> > Moving the point(cursor in a buffer), can make the display to go crazy
> > and display the checker board pattern in the entire emacs window!
> > In addition, this checkerboard pattern remains on the entire emacs window for a few seconds!
> > 
> > PS: I have only seen this behavior in my emacs session as of this
> > morning when I updated fedora with its regular updates for version 38.
> > I did not upgrade to Fedora 39 just yet.
> 
> This is almost certainly not a problem with Emacs, but with your video
> drivers and X libraries.  If you have some "optimization" features in
> your display driver settings, try disabling them and see if the
> problems go away.
> 
> Yes, it shouldnt be an emacs problem. I too feel its a display driver issue, but I'm only having this
> problem
> in emacs and not in other apps. 
> I do not have any optimizations set for my display and gnome window manager.
> 
> Seems like an interaction with the display driver and the latest Fedora 38 patch.
> I have posted to the fedora users group as well. No answers on that forum I'm guessing cause its only
> happening in emacs.
> 
> Very odd. I have never seen this behavior in emacs before.
> 
> And really making my emacs unusable and killing my development time, so any suggestions would
> be appreciated.
> 
> Thanks.
> 
> Sunil

I think we should wait for Fedora to resolve this.





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