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Re: X11 freezing while scrolling




On Aug 9, 2007, at 7:27 PM, Ben Byer wrote:


On Aug 9, 2007, at 12:12 PM, Chris Linstid wrote:

My #1 bug that I really wish they would fix is the "freeze when scrolling" problem. I have only seen this on intel-based Macs (and I believe it has been covered on this list before).

Until yesterday, I hadn't seen a decent workaround to unfreeze X11 short of killing X11 and restarting it (which is not a reasonable solution).

For those who haven't seen the solution and have this problem, you can sample the X11 process in Activity Monitor and X11 will unfreeze.

This is another example of a bug about which we have received countless reports; Most often, the hang happens while scrolling with the mouse wheel in XEmacs. Unfortunately, I've spent about an hour trying to reproduce it, and I can't make it happen. So, yes, I believe you (and everyone else) when you say it's happened, but without being able to see it first-hand, I can't fix it. :(


I had actually thought it was fixed, but I was able to make it happen by scrolling very quickly up an xterm window just now. The key for me is to have lots and lots of text in the buffer you are scrolling up in and to do it very fast, using a scroll wheel. Now that I know how to unfreeze it, I can work harder to reproduce it as it is usually at a very bad time by definition -- when you have lots of text in your buffer, you are often quite busy doing something complex. :-)


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References: 
 >X11 wish list (was Copy and paste between Aqua and X11 applications) (From: email@hidden)
 >Re: X11 wish list (was Copy and paste between Aqua and X11 applications) (From: "Chris Linstid" <email@hidden>)
 >Re: X11 freezing while scrolling (From: Ben Byer <email@hidden>)



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