[Bug 48587] [NEW] In Dapper Xorg is extremely Power Hungry

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For example:
In Dapper Xorg uses 3 times more processor power with Superkaramba:
With certain themes (those very big, I suppose) like sys_mon Xorg is so power hungry that the system is sluggish (e.g. when watching movie the image stops every 4 seconds for 0.5 seconds, dropping frames).
On breezy, same version of Superkaramba and sys_mon used 15% of CPU; now it uses 45-60%.
System spec: Athlong 64 3000+ 1GB Ram Nvidia 6200 256Mb DDR2 with Nvidia-glx driver (nv). DRI and GLX activated.

I have tested the live CD in another system (PIV 2400 512 Mb Ram) to verify the slowness, and the system peaks CPU use with every window movement.
Other bugs like #38131 and #1363 could be the related.

I think it could be due to the "virtual" transparence of this theme and
his area over the desktop. I think this is not kde-related, as long as I
had kde 3.5 on breezy.

I will summit xorg.conf and sys_mon if asked.

I'm sorry for my english, hello from Spain.

** Affects: kdeutils (Ubuntu)
     Importance: Medium
         Status: Incomplete

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In Dapper Xorg is extremely Power Hungry
https://bugs.edge.launchpad.net/bugs/48587
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