video playback after suspend

[shellac]

For thinkpad w510 / i7 820 QM - your work-around works fine!


#!/bin/sh
# Disable hyper-threading processor cores on suspend and hibernate, re-enable them
# on resume. Presumably helps for buggy nvidia behaviour.
# This file goes into /etc/pm/sleep.d/

case $1 in
hibernate|suspend)
echo 0 > /sys/devices/system/cpu/cpu1/online
echo 0 > /sys/devices/system/cpu/cpu3/online
echo 0 > /sys/devices/system/cpu/cpu5/online
echo 0 > /sys/devices/system/cpu/cpu7/online
;;

thaw|resume)
echo 1 > /sys/devices/system/cpu/cpu1/online
echo 1 > /sys/devices/system/cpu/cpu3/online
echo 1 > /sys/devices/system/cpu/cpu5/online
echo 1 > /sys/devices/system/cpu/cpu7/online
;;
esac


thx!

[jimbo12345]

This fix has worked on my AMD dual core with ATI graphics also. Flash player and compiz effects jerky after suspend/resume, but not now thanks to this!

#!/bin/sh
# Disable hyper-threading processor cores on suspend and hibernate, re-enable them
# on resume. Presumably helps for buggy nvidia behaviour.
# This file goes into /etc/pm/sleep.d/

case $1 in
hibernate|suspend)
echo 0 > /sys/devices/system/cpu/cpu0/online
echo 0 > /sys/devices/system/cpu/cpu1/online
;;

thaw|resume)
echo 1 > /sys/devices/system/cpu/cpu0/online
echo 1 > /sys/devices/system/cpu/cpu1/online
;;
esac

[sauthess]

Hi,

on my debian stable (that is impacted with same bug) on my HP Pavilion DM4-1162sf, the following do the job :


#!/bin/sh

# This file goes into /etc/pm/sleep.d/

case $1 in
hibernate|suspend)

echo 0 > /sys/devices/system/cpu/cpu1/online
echo 0 > /sys/devices/system/cpu/cpu2/online
echo 0 > /sys/devices/system/cpu/cpu3/online
;;

thaw|resume)

echo 1 > /sys/devices/system/cpu/cpu1/online
echo 1 > /sys/devices/system/cpu/cpu2/online
echo 1 > /sys/devices/system/cpu/cpu3/online
;;
esac

Thanks !

[antimirov]

2sauthess: the script helped me, thanks!

Guys, do you know if there is a bug reported somewhere so I can subscribe to it?

[gsirus]

Worked for me on thinkpad T410 with Nvidia graphic

thanks!!!

[sauthess]

Ubuntu bug report :
https://bugs.launchpad.net/ubuntu/+s...ux/+bug/676413

Regards

[martini1179]

This bug also appears in Lucid. To all of those that are having this problem, does Flash video performance still stutter in fullscreen if you disable Compiz? If it plays smoothly, then that's both a workaround and a clue. This bug has nothing to do with intel video drivers, or nvidia. From this layman's perspective, it looks like it's either a kernel bug, a compiz bug, or a flash bug. For me (and likely for others for whom my workaround works), this bug is reproducible 100% of the time after suspending TWICE. Suspending only once from a fresh reboot does not reproduce the bug for me. Hibernate doesn't impact flash performance at all. I have no idea when this bug first appeared, since I always used to shut down the machine completely at the end of the day.

[AgenT]

Awesome! This works on Intel video card's as well! Ubuntu 11.04 (natty). On my system I had to add cpu2 to the script.

Thank you so much clrg!

My script that was added to /etc/pm/sleep.d/10_sleep_video_fix (make sure to chmod it to 755):

#!/bin/sh
# Disable hyper-threading processor cores on suspend and hibernate, re-enable them
# on resume. Presumably helps for buggy nvidia behaviour.
# This file goes into /etc/pm/sleep.d/

case $1 in
    hibernate|suspend)
        echo 0 > /sys/devices/system/cpu/cpu1/online
        echo 0 > /sys/devices/system/cpu/cpu2/online
        echo 0 > /sys/devices/system/cpu/cpu3/online
        ;;
    
    thaw|resume)
        echo 1 > /sys/devices/system/cpu/cpu1/online
        echo 1 > /sys/devices/system/cpu/cpu2/online
        echo 1 > /sys/devices/system/cpu/cpu3/online
        ;;
esac

UPDATE #1:
WARNING!
The solutions given by myself as well as others will fix video and flash playback, but will KILL any virtualization you are doing! This virtualization freeze will also cause many problems like:

• It will totally break Xorg (for me, I end up having half of a monitor repeated).
• It will also freeze your kernel at certain points which means DEAD computer until you force cut-power!

I have only seen this happen when going to sleep with some virtualized environment running (for me, that's virtualbox)!

[sauthess]

Hi,

Here is a script that should work on all our computer (instead of looking for CPU numbers...) :


#!/bin/sh
# Disable hyper-threading processor cores on suspend and hibernate, re-enable them
# on resume. Presumably helps for flash resume problem.
# This file goes into /etc/pm/sleep.d/

case $1 in
hibernate|suspend)
for i in /sys/devices/system/cpu/cpu*/online; do echo "0">$i; done
;;

thaw|resume)
for i in /sys/devices/system/cpu/cpu*/online; do echo "1">$i; done
;;
esac

I think it will be easier that checking cpus numbers...

For me, it's not an ubuntu bug (I have it on debian stable too) and not a compiz one too (as disabling cpus is a workaround...).

Hope this "new" scripts helps few of us

Regards,

[didjital1984]

Hi,

Here is a script that should work on all our computer (instead of looking for CPU numbers...) :


#!/bin/sh
# Disable hyper-threading processor cores on suspend and hibernate, re-enable them
# on resume. Presumably helps for flash resume problem.
# This file goes into /etc/pm/sleep.d/

case $1 in
hibernate|suspend)
for i in /sys/devices/system/cpu/cpu*/online; do echo "0">$i; done
;;

thaw|resume)
for i in /sys/devices/system/cpu/cpu*/online; do echo "1">$i; done
;;
esac

I think it will be easier that checking cpus numbers...

For me, it's not an ubuntu bug (I have it on debian stable too) and not a compiz one too (as disabling cpus is a workaround...).

Hope this "new" scripts helps few of us

Regards,

Worked for me. Thanks!