On 05/04/2012 12:35 AM, Stavros Filippidis wrote: > On Thu, May 3, 2012 at 6:14 PM, zxq9<[log in to unmask]> wrote: >> On 05/04/2012 12:01 AM, Stavros Filippidis wrote: >>> >>> I use Scientific Linux 6.2 with my laptop Acer Aspire 3003LMi and >>> suspend-resume does not work for me! Laptop seems to suspend ok, but >>> when resuming, the monitor displays either black screen or green lines >>> that move on a black screen, the caps lock does not change the >>> respective led, and sometimes a led is blinking! >>> >>> Could you advice me with steps for troubleshooting this? >> >> >> This is very often related to graphics driver problems and the way they >> (don't) work well with X. >> >> For someone to help you out you'll need to let everyone know: >> 1. What graphics chipset does your laptop have? >> 2. What drivers are you using (the ones that came with SL6.2, homespun or >> proprietary) >> 3. What desktop environment are you using? >> 4. Do you have graphic accelerated screensavers running as part of the >> wait-idle-suspend cycle? >> 5. Do you have screen locking enabled from blank screen or suspend? >> 6. Is you computer suspending or hibernating? >> >> With that information someone will probably stand a decent chance of helping >> you out -- even if its just to say "hopeless; turn off suspension/sleep". > To begin with, thank you for your answer. > > Well, Acer Aspire 3003LMi has SiS M760GX graphics chipset (which I had > not been able to get 3D-acceleration from from any distribution). For > SiS M760GX, I use the drivers that came with SL6.2. I use the default > desktop for SL6.2 (GNOME). The problem with suspend-resume is there, > both with screen locking or not. Hibernation worked ok last time I > checked, the problem is with suspend (to RAM) and resume. > Starting with that, the short answer is: Disable suspension and rely on hibernation. The long answer begins with: Try the SiS Xorg drivers from here: ( http://w3.sis.com/download/agreement.php?url=/download/ ) See if the problem persists. If it does, you can start poking around your xorg.conf and enabled X features to hunt for a different way (also, you might want to blacklist the default drivers in this case). (Unfortunately I know very little about SiS at all. I've had mixed results with AMD suspension, so I disable it by default and use hibernation directly -- but AMD graphics work awesome with their drivers, so its worth it.)