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I'm having a problem with the last distributive of Ubuntu. The problem is that with an Intel DualCore E7500, 4GB of RAM DDR3-1600 and x32 bits type of OS with PAE enabled, I have not met performance issues, but when I have switched to AMD Athlon X2 245, 4GB of RAM DDR3-1600 and x64 bits type of OS, after this performance fell. Even at startup of Ubuntu without any active process, GUI is slow. I have disabled Detect Refresh Rate, Sync to V Blank in Compiz, but but without any success. It's the problem really in x64 version of Ubuntu or the problem is the Processor?

1) glxinfo | grep -i direct

direct rendering: Yes GL_EXT_copy_buffer, GL_EXT_copy_texture, GL_EXT_direct_state_access,

2) sudo lspci | grep VGA

01:05.0 VGA compatible controller: ATI Technologies Inc 760G [Radeon 3000]

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    I guess from what you ask, that you're talking about 2 different computers, please could you provide more information on graphic cards, etc? Feb 3, 2012 at 9:42
  • The graphic card is integrated on both, on AMD PC is ATI Radeon 3000, on Intel I just don't remember, I guess Intel 3000 :)
    – Denees
    Feb 3, 2012 at 9:55

1 Answer 1

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I think that You should see Your mainboard manual, and turn on/off something in BIOS. That is my guess. I prefer intel processors, but the truth is that the processor type should not infuence efficiency in the way You described.

Did You try new config with other OS?

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  • Yes, I prefer to Intel, but at office, wasn't my choise. No, I didn't tried other os, or the 32 bit type of it, only Ubuntu x64
    – Denees
    Feb 3, 2012 at 9:57
  • Does Your graphic card works? Did You install drivers? If You have, then which ones? Can You give an output of: following commands: glxinfo | grep -i direct (requires mesa-utils installed) and sudo lspci | grep VGA
    – Misery
    Feb 3, 2012 at 10:02
  • Yes, it works, now I'm using it, with an 240W Philips monitor. I have installed AMD Catalyst Control Center last version for Ubuntu 11.10. The output is in first post, I have edited it.
    – Denees
    Feb 3, 2012 at 10:07
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    Hahaha, I have just removed the f**cking ATI Catalyst Center, installed fglrx-update, and the system like revive :), the problems seams to be in the video drivers
    – Denees
    Feb 3, 2012 at 11:05
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    I'm glad that You can fully enjoy Your ubuntu now :] Regards
    – Misery
    Feb 3, 2012 at 11:11

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