GNU bug report logs - #18757
24.4; Intermittent screen flicker since upgrading to OS X 10.10

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Message #47 received at 18757 <at> debbugs.gnu.org (full text, mbox):

From: Emanuel Evans <emanuel.evans <at> gmail.com>
To: Jan Djärv <jan.h.d <at> swipnet.se>
Cc: Glenn Morris <rgm <at> gnu.org>, 18757 <at> debbugs.gnu.org
Subject: Re: bug#18757: 24.4;
 Intermittent screen flicker since upgrading to OS X 10.10
Date: Mon, 20 Oct 2014 11:24:45 -0700

Just confirmed that disabling the scroll bar makes it go away. The flicker is
pretty hard to see with the default theme; it looks much worse with
high-contrast themes. It's always just one flicker per window switch--is that
you're seeing?

Thanks again for looking at this!

Emanuel

Jan Djärv writes:

> Hello.
>
>> 20 okt 2014 kl. 18:05 skrev Emanuel Evans <emanuel.evans <at> gmail.com>:
>>
>> Jan Djärv <jan.h.d <at> swipnet.se> writes:
>>
>>>
>>> I can't repeate it.  Maybe hardware related?
>>>
>>
>> Thanks so much for looking into this! If it's at all helpful, I've found
>> a way to consistently reproduce it on my computer from a fresh build
>> with Emacs -Q (starting in a scratch buffer):
>>
>> 1. M-x toggle-frame-fullscreen
>> 2. C-x 3
>> 3. C-x o
>> 4. C-x b <return>
>> 5. Flicker occurs on C-x o each time
>
> I can see a bit of flicker in the top line, but is just flickers once, not repeatedly.
> It seems to be related to scrollbars.  If I disable scroll bars, the flicker does not happen.
> Do you see that?
>
> 	Jan D.

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