While looking for tutorials, tips, tricks to setup the Wacom digitizer i have to scroll a lot and every time i have huge problems. Because of scrolling, the entire system is freezing for a few seconds. This happens almost every minute and is pissing me off, really.

Watching the system load with top, i saw the Firefox and X using 100% of the CPU. After searching with google and checking tons of bug reports i found a few tips like: disabling smooth scrolling in firefox, adding “export MOZ_DISABLE_PANGO=1” in “/etc/profile“, adding:

Option "EnablePageFlip" "true"
Option "RenderAccel" "true"
Option "XAANoOffscreenPixmaps" "true"
Option "AccelMethode" "EXA"
Option "MigrationHeuristic" "greedy"

in “/etc/X11/xorg.conf” but unfortunately none of them worked for me.

Looks like the problem is related to Compiz and ATI drivers.
Not that firefox or xorg are working 100% fine.

The only workaround for me is to switch the window manager from Compiz to Metacity. Now, xorg and firefox are using under 40% of CPU when scrolling but at least the system is not freezing anymore.

If anyone have some tips how to fix this issue, please let me know.
Thank you!

1. CPU Usage
2. Processes
3. RAM, Swap, HDD IO
4. HDD space
5. Wireless
6. Battery/AC
7. Sabayon world
8. Weather
9. Gmail

Wallpaper + Conky

The fix: a small wrapper to start Conky after 10 seconds.

#!/bin/sh
sleep 10s
/usr/bin/conky

Save file in:

/usr/bin/conky.wrapper.sh

and modify the “Conky” entry in

System->Preferences->Sessions

to

/usr/bin/conky.wrapper.sh

This should fix the problem.

/etc/conf.d/local.start

echo "ondemand" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo "ondemand" > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor

Available options: conservative, ondemand, performance, powersave.

1. While playing movies the window is flickering.
2. From time to time the entire system is freezing for a few seconds and System Monitor show a CPU spike.

First problem affects every OpenGL application if Compiz is running.
There are a few workarounds but no fix yet. Everyone is waiting for the 9.01 closed source ATI drivers (fglrx).

Workarounds:

1. Switch from Compiz to Metacity (every time a movies is played or OpenGL application is running). Fusion Icon is included is Sabayon by default so 2 mouse clicks are enough.
2. In CCSM unredirect full screen windows
3. In CCSM “Extra WM Actions” should be activated and a keyboard shortcut should be defined for “Toggle Redirect”. Whenever a window is flickering, hit that keyboard shortcut and it will stop flickering.
4. In your player change the output from xv to x11.

Personally i use the 1st one.