* bug#29416: 26.0.90: display glitch
@ 2017-11-23 20:07 Charles A. Roelli
2017-11-23 20:22 ` Eli Zaretskii
0 siblings, 1 reply; 6+ messages in thread
From: Charles A. Roelli @ 2017-11-23 20:07 UTC (permalink / raw)
To: 29416
Using Ubuntu GNU/Linux and launching emacs -q on the pretest:
M-x find-function RET format-message RET
M-x load-theme RET wombat RET
C-5 C-v C-5 C-v
There are a few horizontal blue lines visible on the last line of:
> {
> return styled_format (nargs, args, true);
> }
so that it looks a little like this instead:
> } ___ _ ____ __
This was the only easily reproducible case I could come up with, but
I've seen the problem elsewhere several times in daily use with
26.0.90. In contrast I never saw anything similar occur in 25.3.
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#29416: 26.0.90: display glitch
2017-11-23 20:07 bug#29416: 26.0.90: display glitch Charles A. Roelli
@ 2017-11-23 20:22 ` Eli Zaretskii
2017-11-24 0:02 ` Noam Postavsky
0 siblings, 1 reply; 6+ messages in thread
From: Eli Zaretskii @ 2017-11-23 20:22 UTC (permalink / raw)
To: Charles A. Roelli; +Cc: 29416
> Date: Thu, 23 Nov 2017 21:07:18 +0100
> From: charles@aurox.ch (Charles A. Roelli)
>
> Using Ubuntu GNU/Linux and launching emacs -q on the pretest:
>
> M-x find-function RET format-message RET
> M-x load-theme RET wombat RET
> C-5 C-v C-5 C-v
>
> There are a few horizontal blue lines visible on the last line of:
>
> > {
> > return styled_format (nargs, args, true);
> > }
>
> so that it looks a little like this instead:
>
> > } ___ _ ____ __
I don't see this on my system (which is not GNU/Linux).
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#29416: 26.0.90: display glitch
2017-11-23 20:22 ` Eli Zaretskii
@ 2017-11-24 0:02 ` Noam Postavsky
2017-11-24 20:21 ` Charles A. Roelli
0 siblings, 1 reply; 6+ messages in thread
From: Noam Postavsky @ 2017-11-24 0:02 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: Charles A. Roelli, 29416
Eli Zaretskii <eliz@gnu.org> writes:
>> Date: Thu, 23 Nov 2017 21:07:18 +0100
>> From: charles@aurox.ch (Charles A. Roelli)
>>
>> Using Ubuntu GNU/Linux and launching emacs -q on the pretest:
>>
>> M-x find-function RET format-message RET
>> M-x load-theme RET wombat RET
>> C-5 C-v C-5 C-v
>>
>> There are a few horizontal blue lines visible on the last line of:
>>
>> > {
>> > return styled_format (nargs, args, true);
>> > }
>>
>> so that it looks a little like this instead:
>>
>> > } ___ _ ____ __
>
> I don't see this on my system (which is not GNU/Linux).
I don't see it on my Debian GNU/Linux box either (tried with both lucid
and gtk builds). Does disabling double buffering have any effect?
Perhaps installed fonts could also be significant?
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#29416: 26.0.90: display glitch
2017-11-24 0:02 ` Noam Postavsky
@ 2017-11-24 20:21 ` Charles A. Roelli
2017-11-24 20:41 ` Eli Zaretskii
0 siblings, 1 reply; 6+ messages in thread
From: Charles A. Roelli @ 2017-11-24 20:21 UTC (permalink / raw)
To: Noam Postavsky; +Cc: 29416
> From: Noam Postavsky <npostavs@users.sourceforge.net>
> Date: Thu, 23 Nov 2017 19:02:52 -0500
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> >> Date: Thu, 23 Nov 2017 21:07:18 +0100
> >> From: charles@aurox.ch (Charles A. Roelli)
> >>
> >> Using Ubuntu GNU/Linux and launching emacs -q on the pretest:
> >>
> >> M-x find-function RET format-message RET
> >> M-x load-theme RET wombat RET
> >> C-5 C-v C-5 C-v
> >>
> >> There are a few horizontal blue lines visible on the last line of:
> >>
> >> > {
> >> > return styled_format (nargs, args, true);
> >> > }
> >>
> >> so that it looks a little like this instead:
> >>
> >> > } ___ _ ____ __
> >
> > I don't see this on my system (which is not GNU/Linux).
>
> I don't see it on my Debian GNU/Linux box either (tried with both lucid
> and gtk builds). Does disabling double buffering have any effect?
Yes, inhibiting double buffering fixes it.
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#29416: 26.0.90: display glitch
2017-11-24 20:21 ` Charles A. Roelli
@ 2017-11-24 20:41 ` Eli Zaretskii
2017-11-25 14:08 ` Charles A. Roelli
0 siblings, 1 reply; 6+ messages in thread
From: Eli Zaretskii @ 2017-11-24 20:41 UTC (permalink / raw)
To: Charles A. Roelli; +Cc: npostavs, 29416
> Date: Fri, 24 Nov 2017 21:21:42 +0100
> From: charles@aurox.ch (Charles A. Roelli)
> CC: eliz@gnu.org, 29416@debbugs.gnu.org
>
> > I don't see it on my Debian GNU/Linux box either (tried with both lucid
> > and gtk builds). Does disabling double buffering have any effect?
>
> Yes, inhibiting double buffering fixes it.
Sigh.
Although it is strange that double buffering would cause this kind of
problems.
^ permalink raw reply [flat|nested] 6+ messages in thread
* bug#29416: 26.0.90: display glitch
2017-11-24 20:41 ` Eli Zaretskii
@ 2017-11-25 14:08 ` Charles A. Roelli
0 siblings, 0 replies; 6+ messages in thread
From: Charles A. Roelli @ 2017-11-25 14:08 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: npostavs, 29416
> Date: Fri, 24 Nov 2017 22:41:00 +0200
> From: Eli Zaretskii <eliz@gnu.org>
>
> > Date: Fri, 24 Nov 2017 21:21:42 +0100
> > From: charles@aurox.ch (Charles A. Roelli)
> > CC: eliz@gnu.org, 29416@debbugs.gnu.org
> >
> > > I don't see it on my Debian GNU/Linux box either (tried with both lucid
> > > and gtk builds). Does disabling double buffering have any effect?
> >
> > Yes, inhibiting double buffering fixes it.
>
> Sigh.
>
> Although it is strange that double buffering would cause this kind of
> problems.
It is. I'm also surprised nobody else has reported the bug yet, since
my setup is bog-standard. Maybe the problem is hardware-related.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2017-11-25 14:08 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2017-11-23 20:07 bug#29416: 26.0.90: display glitch Charles A. Roelli
2017-11-23 20:22 ` Eli Zaretskii
2017-11-24 0:02 ` Noam Postavsky
2017-11-24 20:21 ` Charles A. Roelli
2017-11-24 20:41 ` Eli Zaretskii
2017-11-25 14:08 ` Charles A. Roelli
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