On Fri, 23 Jul 2010 14:15:52 +0200 (CEST)
"Rafael J. Wysocki" <[email protected]> wrote:

> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.33 and 2.6.34.
> 
> The following bug entry is on the current list of known regressions
> introduced between 2.6.33 and 2.6.34.  Please verify if it still should
> be listed and let the tracking team know (either way).
> 
> 
> Bug-Entry     : http://bugzilla.kernel.org/show_bug.cgi?id=16207
> Subject               : Suspend and VT switch hangs since 2.6.34
> Submitter     : Tino Keitel <[email protected]>
> Date          : 2010-06-09 17:53 (45 days old)
> Message-ID    : <[email protected]>
> References    : http://marc.info/?l=linux-kernel&m=127610606214060&w=2

I think this may actually be an X server bug.  2.6.34 introduced some
new features that X drivers take advantage of, but there was some
bugginess in the X server's handling of client block and unblock,
leading to hangs at VT switch time.

This could be related to some upstream bugs in the X server
(bugs.freedesktop.org):
28998
28365
27035

Can you check those out and see if they're relevant?  27035 and 28998 in
particular fixed VT switch problems for me.

-- 
Jesse Barnes, Intel Open Source Technology Center
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