[ltp] Mails from ATI about the Suspend-To-Ram problem with fglrx drivers

Nils linux-thinkpad@linux-thinkpad.org
Tue, 12 Apr 2005 14:01:02 +0200


Hi Flori,
yes, I will write a short howto, but in the moment exists some big problems I 
haven't solved:

1.) After resuming the ATI card consumes much more power. (10W more)
2.) The fgl_glxgears utility freezes the laptop after resuming, but before 
it's working correctly.

(both problems can be solved if you restart X, but this is no final solution)

Suspend-To-Disk should work without the vbetool trick, because the card is 
initiallized during bootup. I will check it in the next days.

I think there is something missing to restart the opengl engine or anything 
else. Opengl games working after resuming (sometimes the X crashes), but the 
fgl_glxgears utility breaks always the system.

Nils

> Hi Nils,
>
> that sounds very interesting. I think that a lot of people will be exited
> to make their Thinkpad work with ATI-driver and suspend-to-..
>
> Since this thread has become very long, do you feel able to write a short
> summary or a little HOWTO so that other people can follow your solution
> easier? (Kernel, settings, patches, changes in XF86Config-4, sleep.sh,
> etc.)
>
> One more question: Is suspend-to-disk also possible with the ATI-driver? I
> use this much more than S3.
>
> Greetings,
> Flori
>
> > This is the debian way. (tested with debian sarge)
> > apt-get install vbetool
> >
> > my /etc/acpi/sleep.sh :
> >
> > sync
> > # save state:
> > vbetool vbestate save > /tmp/vbestate
> > chvt 1
> > sync
> > #------------------- [ Enter Sleep Mode ] -----------------------------
> > hwclock --systohc
> > echo 3 > /proc/acpi/sleep
> > hwclock --hctosys
> > #------------------------------------------------------------------------
> >--- # Video Bios to default
> > vbetool post
> > # restore state
> > vbetool vbestate restore < /tmp/vbestate
> > # change to X Server
> > chvt 7