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I know I am far from the first one to ask this question, but I have a new 12.10 64-bit install, and the CPU usage for compiz is terrible. I am guessing my quad core would explain the 300% usage on top.

I have tried installing CCSM and setting Sync to VBlank off, and the strace described in another link (it locked up my machine)

I have an AMD HD7770 card (Cape Verde).

Is there any late breaking news on how to address this problem, that I may have missed?

This is the result of lspci:

01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Cape Verde [Radeon HD 7700 Series] (prog-if 00 [VGA controller])
Subsystem: Dell Device 2304
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f7d00000 (64-bit, non-prefetchable) [size=256K]
I/O ports at e000 [size=256]
Expansion ROM at f7d40000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: radeon
Kernel modules: radeon
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Did you install the Proprietary drivers? – RolandiXor Nov 21 '12 at 17:49
I believe they were installed automatically. Is there a way to check? – EdgeCase Nov 21 '12 at 19:59
Isnt there breakage on the AMD drivers on 12.10? – Bruno Pereira Nov 21 '12 at 20:24
@EdgeCase you're using the open source drivers. Open system settings, go to software sources, and check for proprietary drivers under the additional drivers tab. They are not installed automatically. – RolandiXor Nov 21 '12 at 21:38
I just downloaded the AMD Drivers from and installed them. I totally broke my system. I had to reinstall. I saw some messages from unity saying that some operations are not supported. I think I like the open-source drivers better :) – EdgeCase Nov 21 '12 at 22:20

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