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eazy

Member

From: London, UK

Registered: 2008-01-20

Posts: 97

Website

Old Radeon and Xorg uses too much CPU? SOLVED!

Hi,

sorry guys, but I *have* to share this one :

* if you're an unlucky owner of a old Radeon (maybe on a notebook, like a mobility u1/igp 320m like me),
* if you're an unlucky owner of card no more supported by fglrx
* if you cry when refreshing top Xorg uses something like 40% of CPU,
* if you're not using Compiz/Beryl/xcompmgr or any other compositing manager,
* if you spent a lot of your time tuning xorg.conf with no result,

well, there's finally a solution!

Remove every option in your "Device" section in xorg.conf, reset the driver to ati, and SEE THINGS FLY!

E.g.:

...
Section "Device"
    Identifier  "Card0"
    Driver      "ati"
    VendorName  "ATI Technologies Inc"
    BoardName   "Radeon Mobility U1"
    BusID       "PCI:1:5:0"
EndSection
...

This has worked for me, and I really like to hear some feedback from anyone this helps. This should *work* at least with people which apply to the above points, don't tell me if it doesn't work if you're not using a old ATI card and/or you're not experiencing those issues!

Cheers,
eaZy

Last edited by eazy (2008-04-11 14:41:12)

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no masters to rule us, no gods to fool us

Ramses de Norre

Member

From: Leuven - Belgium

Registered: 2007-03-27

Posts: 1,289

Re: Old Radeon and Xorg uses too much CPU? SOLVED!

I don't know if it's considered old, but fglrx is way faster than ati on may radeon X600.

eazy

Member

From: London, UK

Registered: 2008-01-20

Posts: 97

Website

Re: Old Radeon and Xorg uses too much CPU? SOLVED!

* if you're an unlucky owner of card no more supported by fglrx

---

no masters to rule us, no gods to fool us