Linux 3.2: After resume screen only turned on after switching terminals

[Alex Deucher]

On Wed, Jul 4, 2012 at 9:41 AM, Paul Menzel
<paulepanter at users.sourceforge.net> wrote:
> Am Samstag, den 30.06.2012, 21:00 +0200 schrieb Paul Menzel:
>> Am Dienstag, den 26.06.2012, 07:42 +0200 schrieb Michel Dänzer:
>> > On Mon, 2012-06-25 at 21:14 +0200, Paul Menzel wrote:
>> > >
>> > > resuming from suspend to RAM the monitor was indicating by a blinking
>> > > LED that it did not receive any signal. This is the first time this
>> > > happened. Resuming from suspend to RAM had worked without problems
>> > > before (and probably will work again the next tries).
>> > >
>> > > Logging in from SSH worked fine though. Switching terminal to tty1
>> > > nothing changed but going back to tty7, where X was supposed to run),
>> > > and the monitor detected a signal and showed the screensaver.
>> > >
>> > > Switching to tty1 still does not work though, that means the monitor
>> > > indicates that it gets no signal.
>> >
>> > What about tty2-6 or any others?
>>
>> It just happened again. tty2–6 also do not show anything.
>>
>> > What does fbset -i say when the problem occurs?
>>
>> I logged in over SSH not having switched the ttys yet. This is the
>> result.
>>
>>         $ fbset -i
>>
>>         mode "1280x1024"
>>             geometry 1280 1024 1280 1024 32
>>             timings 0 0 0 0 0 0 0
>>             accel true
>>             rgba 8/16,8/8,8/0,0/0
>>         endmode
>>
>>         Frame buffer device information:
>>             Name        : radeondrmfb
>>             Address     : 0xd0142000
>>             Size        : 5242880
>>             Type        : PACKED PIXELS
>>             Visual      : TRUECOLOR
>>             XPanStep    : 1
>>             YPanStep    : 1
>>             YWrapStep   : 0
>>             LineLength  : 5120
>>             Accelerator : No
>>
>> This does not differ though after having switched between ttys and
>> getting a working X server again. The other ttys do not just show black.
>> When switching from tty7 with the X server running to a console(?) tty
>> then I shortly (half second) see some kind of test image, which contains
>> four horizontal colored stripes red, green, blue and white(?).
>>
>> I could not find anything in the output of `dmesg`, but
>> `/var/log/syslog` contains several of the following lines.
>>
>>         Jun 29 19:44:57 debian-host acpid: client 8677[0:0] has disconnected
>>         Jun 29 19:45:08 debian-host acpid: client connected from 8677[0:0]
>>         Jun 29 19:45:08 debian-host acpid: 1 client rule loaded
>
> Does someone have an idea what the problem might be and how to fix it?
>

Is this a regression?  If so can you bisect?

Alex

>
> Thanks,
>
> Paul
>
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