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.)