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Re: X11 becomes unresponsive with complex client programs


Indeed, -dumbSched causes this problem to disappear. I have attached another cygcheck.out on the off chance that it will be helpful. When I wrote this file, all my Cygwin packages were up to date, and git-cola was executing OK (no hangs).

-- D.A.

On 1/16/2017 6:09 AM, Jon Turney wrote:
On 14/01/2017 01:38, David Arnstein wrote:
My cygwin installation can display simple X11 clients such as xterm. A
complex client such as git-cola, launched from a remote RedHat Linux
machine, will cause all X11 windows under cygwin to become unresponsive.
Windows Task Manager says "not responding."

This problem occurs with recent releases of Cygwin/X11. The attached
cygcheck.out indicates the last X11 version that works well: 1.18-4.1.
All other cygwin packages are up to date.

Thanks for reporting this problem.

Unfortunately, I couldn't reproduce it.

However, I suspect this may be caused by switching to the smart
scheduler by default in xorg-server 1.19.0-1.

So, the first thing I'd suggest you try is adding -dumbSched to the X
server options to see if this makes a difference (e.g. 'startxwin --

Attachment: cygcheck.out
Description: Text document

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