Double suspend to ram doesn't work on acer aspire 5720g

Hi,

If I suspend system to ram twice, the system hangs on resume.

Otherwise system suspends fine.

I can do the following:

suspend to disk
suspend to disk
suspend to ram
suspend to disk
suspend to ram
suspend to disk
suspend to disk.

but not this:

suspend to ram
suspend to ram.
<-> hang

Before I start digging deeper, are there patches floating around that could fix this issue?

(I use latest linus -git kernel)

(I tried to use minimal system and got same results)

Have to confess that I use nvidia binary drivers, and without them video doesn't resume, but I did test this issue without them, and got same results.

(after first suspend to ram video didn't resume, but I was able to control the system with keyboard, and I then put it to sleep again, and on resume, system didn't respond.)

Quoted 1 line · Maxim Levitsky

Hi,

Hi,

Quoted 28 lines

If I suspend system to ram twice, the system hangs on resume.

Otherwise system suspends fine.

I can do the following:

suspend to disk
suspend to disk
suspend to ram
suspend to disk
suspend to ram
suspend to disk
suspend to disk.

but not this:

suspend to ram
suspend to ram.
<-> hang

Before I start digging deeper, are there patches floating around that could fix this issue?

(I use latest linus -git kernel)

(I tried to use minimal system and got same results)

Quoted 7 lines

Have to confess that I use nvidia binary drivers, and without them video doesn't resume, but I did test this issue without them, and got same results.

(after first suspend to ram video didn't resume, but I was able to control the system with keyboard, and I then put it to sleep again, and on resume, system didn't respond.)

Hard to say what the problem is. If it's a regression (ie. you have a kernel that works 100% of the time) and is readily reproducible, bisection may help find the patch that broke it.

Thanks,
Rafael