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From: Alan Third <alan@idiocy.org>
To: Wasim Abbas <abbas.wasim@gmail.com>
Cc: 41187@debbugs.gnu.org
Subject: bug#41187: 28.0.50; Flipped text
Date: Sun, 9 Aug 2020 15:33:22 +0200 (CEST)	[thread overview]
Message-ID: <20200809133320.GA40657@breton.holly.idiocy.org> (raw)
In-Reply-To: <E3A0A1BA-7959-4E1C-8DD7-3F70E0AC9C0E@gmail.com>

On Sun, Aug 09, 2020 at 10:50:23AM +0100, Wasim Abbas wrote:
> Yes this is the text from the file I have opened.
> 
> I just did a quick test again today and I can reliably reproduce it.
> This time however it's not just flipped but corrupt frame buffer as
> it seems?
> 
> Here is what I have tried. Open up a longish C++ header file. Scroll
> with mouse a few times. Nothing happened. Split the window
> vertically and the scrolled a few more time rapidly. The corruption
> started in that window only. Visited another buffer in that window
> “messages” buffer you can see the flipped text there as well.
> 
> Visit the first window (is content was displayed correct so far, I
> think because its not refreshed yet) and move cursor up and down 1
> line at a time only that line is displayed wrong but also some other
> corruptions in random places.

It sounds suspiciously like we're flipping the bitmap and not
unflipping it, but I can't see how that happens.

Are you able to reproduce it with emacs -Q?
-- 
Alan Third





  parent reply	other threads:[~2020-08-09 13:33 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-11 12:00 bug#41187: 28.0.50; Flipped text Wasim Abbas
2020-05-11 15:23 ` Eli Zaretskii
2020-05-12  9:51   ` Wasim Abbas
2020-05-14 21:05   ` Alan Third
2020-08-06 20:46 ` Alan Third
     [not found]   ` <E3A0A1BA-7959-4E1C-8DD7-3F70E0AC9C0E@gmail.com>
2020-08-09 13:33     ` Alan Third [this message]
2020-08-10 11:40       ` Wasim Abbas
2020-08-10 19:11         ` Alan Third
     [not found]           ` <3E909253-AB23-4E8E-9B81-D92937EC3BB4@gmail.com>
2020-08-17 14:17             ` Wasim Abbas
2020-12-20 10:50               ` Alan Third
2021-01-02 22:46                 ` Alan Third
2021-01-06 14:30                 ` Wasim Abbas
2021-01-06 18:33                   ` Alan Third
2021-01-06 23:03                     ` Wasim Abbas
2021-01-06 23:22                       ` Alan Third
2021-01-07 10:47                         ` Wasim Abbas
2021-01-07 19:48                           ` Alan Third

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