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SubjectRE: Fwd: [Suspend-devel] resume not working on acer ferrari 4005 with radeonfb enabled
Date
From

> -----Original Message-----
> From: Pavel Machek [mailto:pavel@ucw.cz]
> Sent: Sunday, November 12, 2006 1:14 PM
> To: Benjamin Herrenschmidt
> Cc: Christian Hoffmann; Andrew Morton; Solomon Peachy; Rafael
> J. Wysocki; linux-fbdev-devel@lists.sourceforge.net; LKML;
> Christian@ogre.sisk.pl; Hoffmann@albercik.sisk.pl
> Subject: Re: Fwd: [Suspend-devel] resume not working on acer
> ferrari 4005 with radeonfb enabled
>
> Hi!
>
> > > Then the radeonfb doesn't kick in at all (guess some pci ids are
> > > added in that patch).
> > >
> > > BTW: resume/suspend works ok if I have the vesa fb enabled.
> >
> > In that case (vesafb), when does the screen come back
> precisely ? Do
> > you get console mode back and then X ? Or it only comes back when
> > going back to X ? Do you have some userland-type vbetool
> thingy that
> > bring it back ?
>
> He's using s3_bios+s3_mode, so kernel does some BIOS calls to
> reinit the video. It should come out in text mode, too.
>
> Christian, can you unload radeonfb before suspend/reload it
> after resume?

Will it work if radeonfb is compiled as module? I think I had problems
with that, but I'll try again.

>
> Next possibility is setting up serial console and adding some
> printks to radeon...

Unfortunatly, the laptop doesn't have serial port. I tried to get a USB
device (pocketpc) read the USB serial, but I only partially succeeded. I
can pass console=ttyUSB0 to the kernel and load the ipaq serial console
driver as it oopses. I am able to echo strings to /dev/ttyUSB0 and read
them on the ipaq, but I am not able to "deviate" the kernel messages to
that port. Any hints on how to do that would be very appreciated, I
didn't find anything usefull on the web. (I tried with setconsole
/dev/ttyUSB0 but it gives error msg about device busy or something)

Chris


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