i have an acer aspire 9100 with an ati mobility radeon x600, both with fglrx and ati drivers after suspending to ram the screen stays black, i can hear the computer waking up though

edit:keyboard input doesn't seem to work either


[moved from Hardware by spinynorman]

Which kernel do you have installed (you should run the laptop-kernel)? Are there any pointers in /var/log/messages or ~/.xsession-errors?

nothing which seems relevant in those logs and i am using the laptop kernel :(

I would check if it hangs again if you disable the 3D stuff. That might help to narrow down the problem.

I didnt even use the 3d stuff, fglx was installed but I used the xorg driver and even then the laptop hangs waking up...

I don't know if the following thread I created will be any help to you or not, but I do have a ATI Mobility Radeon 9600 in my T42. I finally got suspend to RAM to work after some effort. I found the following general article most helpful: How to suspend and hibernate a laptop under Linux

Here is my howto thread for a T42 ThinkPad: Enabling Hardware hotkeys on a ThinkPad T42 [I know you have an Acer, which is different.]

thanks i might have some to look at it now

I had a similar problem with Thinkpad T61. I fixed it by adding to the file /usr/share/hal/fdi/information/10freedesktop/20-video-quirk-pm-lenovo.fdi. There is a similar file for acer in that directory. You might want to look at it. Also, I added acpi_slip=s3_bios to the kernel boot options (via Mandriva Control Centre). See this reference.

suspend-to-ram and disk work out of the box in 2008.1 spring, no fiddling required

Did they manage to speed up suspend/resume? In 2008, it takes 5 times longer than in Windows.

suspending to disk takes a while, resuming is a bit faster than a regular boot (to kdm)
suspending and resuming to ram is okay

My wife's Acer does it in Windows! I think it's an Acer thing. Sometimes it wakes up, and sometimes it doesn't. When it doesn't, you can see it's fully powered up, you can hear the fan cooling the processor, etc, but the screen doesn't wake up - even with banging the keyboard! Although, initially pressing a key did something, but nothing more to get the screen active.

Even if the screen is shut, you can here the fan going every now and then cooling the machine down. Obviously something not working right on Acer laptops. If I remember correctly, she has a TravelMate 2350 or something like that.