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Old 11-20-10, 10:43 AM   #1
ir123
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Default Has anyone observed this suspend to ram bug?

On the newer set of drivers (including the latest stable) whenever I resume from suspend, I notice that google chrome is slower in scrolling. I notice this very clearly since I use a smooth scrolling extension and it just doesn't work right after suspend. The workaround I know is just to log out, rmmod nvidia driver in init 3, then return and everything is fine. Is this a known bug, and if so, is there another way to configure s2r to prevent it?
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Old 11-20-10, 11:25 AM   #2
DeeBeeOh
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Default Re: Has anyone observed this suspend to ram bug?

I experience this too. It will sometimes also self correct after another suspend/resume cycle.
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Old 11-20-10, 11:46 AM   #3
ledoc
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Default Re: Has anyone observed this suspend to ram bug?

There are occasional threads about something being slower or not accelerated any more after suspend. IIRC, the last one a few weeks back was about compiz getting slower (or opengl?). Not sure.

Anyway, you might find some more info on that buried in the forum.
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Old 11-21-10, 04:22 AM   #4
oyvind
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Default Re: Has anyone observed this suspend to ram bug?

Yes, I've observed this as well, but on the 195.X drivers (Dell E6510, NVS 3100M). I reported an Ubuntu bug here: https://bugs.launchpad.net/ubuntu/+s...ux/+bug/671932
But I eventually closed it as invalid, since I gave up trying figure out what was going on. Sometimes things would be visibly slower after resume from suspend.

Disabling all hyper-threading logical processors before suspending seems to work around the issue for me. Might be some kernel issue, might be some nvidia driver issue, might be some crap ACPI/BIOS issue..
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Old 11-21-10, 08:54 AM   #5
ir123
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Default Re: Has anyone observed this suspend to ram bug?

Quote:
Originally Posted by ledoc View Post
There are occasional threads about something being slower or not accelerated any more after suspend. IIRC, the last one a few weeks back was about compiz getting slower (or opengl?). Not sure.

Anyway, you might find some more info on that buried in the forum.
I looked, couldn't find anything specific. I'm not seeing a difference in opengl so only basic 2d might be affected somehow.

Also, as someone else mentioned hyperthreading. I disabled it but in my case it made no difference.
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