This Red Hat bug:
is about clients freezing when using Xinerama and 16 bit fonts at the same time.
What is actually going on is that Xinerama is implemented by issuing an
ImageText16 on more than one screen. This causes both calls to try and fetch the
font from the font server, causing ClientSleep() to be called twice. However,
when the font finally arrives, the client awoken only once.
See also https://bugzilla.mozilla.org/show_bug.cgi?id=136362
Sorry about the phenomenal bug spam, guys. Adding xorg-team@ to the QA contact so bugs don't get lost in future.
Any suggestions on the right way to fix this?
I've been bitten by freezing xterms for years and would like to try to find a resolution.
definitely not going to be fixed for 1.7/7.5.
Should be fixed in xserver 1.9:
Author: Adam Jackson <email@example.com>
Date: Mon Aug 9 15:20:20 2010 -0400
fonts: Fix refcounting for asynchronous font operations (#3040)
When doing Xinerama, we'll dispatch font ops across all backend screens.
If using a font server (such that some operations can sleep), we'll put
the client to sleep once for each screen, but only wake up once, because
we're trying to keep track of the sleep count in _each_ screen's
Instead, just ask the core whether the client is already asleep.
Signed-off-by: Adam Jackson <firstname.lastname@example.org>
Reviewed-by: Keith Packard <email@example.com>
Signed-off-by: Keith Packard <firstname.lastname@example.org>