Fixing the Full Screen Flash Stutter (720p and 1080p)

Assuming your computer can handle the fact that Adobe Flash can be processor intense (especially watching the 720p and 1080p videos on Youtube or Hulu), you really don't want the videos stuttering when you watch them in full screen when you know your computer can handle it. This has been bothering me for a while so I decided to track down a working fix to share with everyone. This fix isn't hard to implement but I'll provide some screenshots for clarity:

Open terminal and type:

$ sudo gedit /etc/init.d/ondemand

When gedit opens, paste the following block of information at the very bottom:

for CPU_THRESHOLD in /sys/devices/system/cpu/cpu*/cpufreq/ondemand/up_threshold
do
[ -f $CPU_THRESHOLD ] || continue
echo -n 30 > $CPU_THRESHOLD
done

See the image below for the exact placement of the code, notice that it is placed below the "esac" that is already present.




If you're having problems exiting flash, you can try changing the niceness value to something lower. The original value is echo -n 40, I was able to keep HQ video playback and better system stability at echo -n 30 so changed that to the default value above.

After you're done editing that file, save it and we'll finish up the rest of the steps in terminal:

$ sudo mkdir /etc/adobe
$ echo “OverrideGPUValidation=true” > ~/mms.cfg
$ sudo mv ~/mms.cfg /etc/adobe/

Now reboot and you *should* be able to watch full screen videos now lag and stutter free. Enjoy!