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Date: Sat, 31 Jan 2009 00:27:28 +0100
From: Jan Henrik Sylvester <me@janh.de>
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Cc: current-list freebsd <freebsd-current@freebsd.org>
Subject: Re: Xorg upgrade desaster: Xlib: extension "Generic Event Extension"
 missing on display ":0.0".
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O. Hartmann wrote:
> Xlib:  extension "Generic Event Extension" missing on display ":0.0".
> 
> Then firefox3 freezes forever, showing something like the background or
> pixel remnants of windows/picograms moving over its window.

Today, I had this error, too, but not with firefox3 (IIRC).

It was after the update of libXext-1.0.4,1 to 1.0.5,1 -- going back 
seemed to have fixed it. (I still had a package from after the xorg 7.4 
upgrade last week.)

I have not got time to look into it and try to reproduce it. (There were 
some other updates and configurations changes around the same time.)

BTW: It was on 7.1. I do use the radeon driver, too.

Cheers,
Jan Henrik