[Bug 43278] RS482: Hibernation reliably hangs, suspend-to-RAM unreliably hangs

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https://bugs.freedesktop.org/show_bug.cgi?id=43278

--- Comment #18 from Rolf <hubba@xxxxxxxxx> 2012-03-21 05:01:34 PDT ---
On 20.03.2012 19:47, bugzilla-daemon@xxxxxxxxxxxxxxx wrote:
> https://bugs.freedesktop.org/show_bug.cgi?id=43278
>
> --- Comment #17 from Jonathan Nieder<jrnieder@xxxxxxxxx>  2012-03-20 11:47:35 PDT ---
> (In reply to comment #10)
>
>>>> When trying the "drm.debug=0x6" and "no_console_suspend" parameters the
>>>> system sometimes didn't hangup on hibernate test - the test worked 3
>>>> times in follow without hangup.
>>>> And second suspend to disk with the two parameters did not really
>>>> suspend - the power led continued to burn as described above - and the
>>>> screen turned to power safe mode - but after a second or two the screen
>>>> powered up again and showed the login screen of suspend mode.
>>>> But this could not be reproduced constantly - strange!
>>> Do you have logs from when this happened (they might be somewhere in
>>> /var/log/dmesg*)?
>> Please find attached all the /var/log/dmesg* files with their timestamps
>> in ls.txt .
> That isn't quite what I meant.  The timestamps aren't so helpful to us since we
> weren't there; we can't easily tell which suspend you are talking about.
>
> What kernel are you using these days?  Does it still fail to hibernate
> when the radeon driver is loaded?
>
Today I am using kernel 3.2.0-2-amd64 .
The problem still exists in exactly the same way - the first hibernate 
always works perfectly fine - the second hibernate causes system hangup.
After this long time I am not sure if I remember all the checks to do. 
Maybe also some things changed in the newer kernels ;-)
What I did is:

- start system with option "break=bottom"
- in the shell coming up, lsmod shows that radeon driver is not loaded
- hibernate check works fine three times in follow

But at this point I do not know how to load the radeon driver cause 
"modprobe radeon" brings up error message "module radeon not found in 
modules.dep", so I cannot tell if radeon has the same error message as 
last year.

By the way - don't know if you are concerned by this - but I also 
received a mail from a guy at bugzilla.kernel.org asking if the problem 
still exists - but my answer mail could not be delivered to him 4 times 
because of the following server problem :" The following addresses 
failed: <bugzilla-daemon@xxxxxxxxxxxxxxxxxxx> host 
bugzilla.kernel.org[198.145.19.204]: connection to mail exchanger failed"

Regards

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