Ferrari and suspend-to-ram

[Johan_V]

I have acer ferrari 4005wlmi (ie turion and ati x700 gpu). I am trying to get S3 working.
Laptop suspends fine, but after resume no video. Everything else working, it responds to keyboard.

I have tried s3_bios and s3_mode options but no luck. Kernel version 2.6.13-gentoo-r3.

Any Ideas?

[Johan_V]

I got it working.
A tool called video-post did the trick.

[sreekar]

Can you elaborate on how you got it to work? I also have the same laptop and the same problem.

Thanks.

[Johan_V]

Suspend-to-ram works if option noapic is passed to kernel. Curiously option pci=noacpi also does the trick but it will drop my hd performance to 17MB/sec.

Video will wake using tool called video_post from http://www.srcf.ucam.org/~mjg59/laptops/.

Note that DRI must be disabled if suspending from X.