X11 blinking cursor in text window like 'gvim' - only halts if moved-over another X11-win

Jon Turney jon.turney@dronecode.org.uk
Sun Apr 11 14:14:54 GMT 2021

On 09/04/2021 16:12, Thomas Wolff wrote:
>> See [1] et seq. for a discussion of what I think is the same problem, 
>> where the Cygwin X server doesn't notify X windows of a focus loss 
>> when the focus moves to a non-X window.
> Hmm, when I start xterm -bc and click out of xterm (e.g. mintty or 
> Thunderbird), the cursor stops blinking for me.

If you read [1], you'll see that mentions this behaviour is only seen 
with some X clients, and xterm is explicitly mentioned as one for which 
it works correctly.

(I think perhaps the problem is with X clients which implement the 
WM_TAKE_FOCUS protocol, but I don't seem to have made that connection in 
my contemporaneous notes, so perhaps it's more complex than that)

>> Unfortunately, my attempts at fixing this just introduced more 
>> problems (see [2],[3] et seq.), and so were reverted.
>> [1] https://sourceware.org/legacy-ml/cygwin/2017-04/msg00168.html
>> [2] https://sourceware.org/legacy-ml/cygwin/2017-04/msg00278.html
>> [3] https://sourceware.org/pipermail/cygwin/2017-May/232564.html

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