Latest Cygwin X hangs when mouse is used to highlight text

Brian Kelly
Wed Sep 15 16:12:00 GMT 2010

See attached log run with XWin -logverbose 3

Only the X System hangs - not the whole PC. Other apps continue to work fine. However, **while** the X system is hung, mintty loses it's cut-and-paste capabilities. Once Windows or I with /bin/kill, stop the X system, mintty can once again cut-and-paste (without any need to restart the app).

I did have a system failure caused by a VPN memory clash that caused a "blue screen of death" and instant system shutdown. It seems my X-Windows problem began after that episode. I don't know if that is germane, but it's all I can think of as a potential causal contributor.

Thanks Jon

-----Original Message-----
>From: Jon TURNEY 
>Sent: Sep 15, 2010 7:13 AM

>Subject: Re: Latest Cygwin X hangs when mouse is used to highlight text
>On 14/09/2010 20:52, Brian Kelly wrote:
>> Thanks Jon for the quick reply. I attached a new log file generated with
>> an  attempt to highlight - followed by the "hang".
>Can you please attach an X server log generated with the additional server 
>option '-logverbose 3'
>Can you be more detailed about what you mean by a 'hang'? Does just the X 
>server application become unresponsive? or your whole system?
>> Again, this worked PERFECTLY just yesterday.
>I understood the first time.
>I would suggest that something has changed on your system to cause this change 
>in behaviour, but you are best placed to find out what that is.
>> -----Original Message-----
>>> From: Jon TURNEY
>>> Sent: Sep 14, 2010 1:47 PM
>>> Subject: Re: Latest Cygwin X hangs when mouse is used to highlight text
>>> On 14/09/2010 18:51, Brian Kelly wrote:
>>>> I've been using Cygwin X trouble-free for years, and am running the latest
>>>> distribution of X and the Cygwin1.dll for at least two weeks (since the
>>>> Cygwin release). It's been fine until this morning when it started
>>>> locking on me whenever I used the mouse to highlight text. I have NO IDEA
>>>> what changed on my system to now cause this behavior. **ANY** help you can
>>>> give to assist me would be most appreciated since I use it for all my
>>>> development efforts.
>>> This is very likely to be some sort of problem with the clipboard integration
>>> code.
>>> You might find that using the '-noclipboard' option works around the problem
>>> (at the cost of not being able to cut/paste between Windows and X apps).
>>> An xserver log with '-logverbose 3' might shed a bit more light on what's
>>> going on.
>Volunteer Cygwin/X X Server maintainer
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