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Andrey Falko wrote: |
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> On 11/20/08, *Nikos Chantziaras* <realnc@×××××.de |
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> <mailto:realnc@×××××.de>> wrote: |
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> |
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> As it happens, upgrading to kernel 2.6.27 was not the only change; I |
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> switched from xf86-video-radeonhd to the proprietary ATI Catalyst |
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> drivers. Didn't think that this has anything to do with it though. |
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> |
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> |
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> I have a hunch that this is the problem. Have you tried 2.6.27 without |
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> the proprietary ATI drivers? |
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I'll be running tests on this with various combinations |
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(2.6.26/2.6.27/Catalyst/open source radeonhd) and see what happens. |
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Re-emerging a bunch of stuff should do it. |
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> This is the first thing I would suspect |
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> because ATI drivers are not reputed --- or so I believe --- for being |
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> the best quality software out there. |
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They are reputed to be one of the most broken (from packaging, install |
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scripts up to the actual binary blobs) ever produced ;P Too bad they're |
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the *only* choice on modern cards. No 3D (or even accelerated 2D) |
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support with any open source driver for HD4xxx series cards. It's one |
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of those things you hate to the bone but can't do without due to AMD's |
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refusal to open source them so we can fix them. |
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> Either way, we need to eliminate as |
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> many factors as possible and one of these factors is your ATI driver |
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> change. I don't know much about Prime95, but if it won't simulate a |
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> subtlety in your video drivers, especially how proprietary ATI drivers |
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> will play with kernel 2.6.27. |
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Yes, Prime doesn't touch the GPU. It stresses CPU, northbridge and RAM |
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only. |
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