On 10/11/2010 10:54 PM, Karl Tomlinson wrote:
Jani Monoses writes:
In a dual monitor setup on a laptop with the card
01:00.0 VGA compatible controller: ATI Technologies Inc M24 1P
[Radeon Mobility X600]
( 01:00.0 0300: 1002:3150 )
on resuming from suspend to RAM the machine locks up, no pings, no
caps-lock toggling, blank screen.
See
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.35.y.git;a=blob;f=Documentation/power/s2ram.txt;h=514b94fc931e09b337fd297401d9f9c1aa391dac;hb=HEAD
for info on TRACE_RESUME, which
can be used to determine how far resume process gets.
Thanks. I actually used that to narrow the cause down to the video card,
but I don't remember seeing detailed line info in that dmesg which would
point to a location within the radeon driver.
I was hitting a similar issue in
https://bugzilla.kernel.org/show_bug.cgi?id=17692
so you may like to try disabling ColorTiling.
I'll try that. For now as I said I have disabled modesetting, with no
visible side effects.
Jani
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