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bug#38727: 27.0.50; The frame refreshes when pressing 'C-h k'


From: HaiJun Zhang
Subject: bug#38727: 27.0.50; The frame refreshes when pressing 'C-h k'
Date: Wed, 19 Feb 2020 19:59:02 +0800

I tried the master today. Emacs just shows a blank window.
I run it in src directory:
cd  src
./emacs -Q

OS: macOS 10.13.6.


在 2020年2月19日 +0800 AM6:16,HaiJun Zhang <address@hidden>,写道:
Besides the flicker, it also renders blank windows sometimes.
I will try the master. Thanks.
在 2020年2月16日 +0800 PM7:27,Alan Third <address@hidden>,写道:
On Sun, Feb 16, 2020 at 11:47:50AM +0800, HaiJun Zhang wrote:
Will this be fixed before emacs 27 released?
The whole frame flickers which makes me uncomfortable. Hope it will be fixed.

I’ve pushed a fix to the master branch, but unfortunately I don’t
think the fix will make it into Emacs 27. The fix has noticeably worse
performance than the current Emacs 27 branch, and even though I think
it will be fast enough, I can’t guarantee it for all situations. As a
result I’d rather the fix isn’t applied to Emacs 27 just in case we
end up doing a release that breaks people’s workflows. The current
bugs in Emacs 27 are annoying, but they can be easily worked around.
--
Alan Third

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