Messages in this thread | | | Subject | Re: AMD760MPX: bogus chispset ? (was PROBLEM: sound is stutter, sizzle with lasts kernel releases) | From | Alan Cox <> | Date | 11 Jul 2003 22:37:39 +0100 |
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On Gwe, 2003-07-11 at 22:04, xi wrote: > And one interesting thing: > in the AMD762 datasheet (24462.pdf) page 231 (Recommanded BIOS > settings), I can see this: "Numerical Values shown with h or b are > preferred settings." ; and AMD recommand this: > -> set bits 2 and 1 of register 0x4C to "0b" > -> set bits 23 and 3 respectively to "0b" and "1b" > > I can confirm that these settings works much more better, even if they > don't exactly follow PCI specs. And I don't think this is specific to my > cards since I have tested others. > Furthermore, my AMD762 is revision B1 (just before the last one: C0), > and my AMD768 revision is B2, the last one. > > Would you accept I make a patch which doesn't make any change in these > registers at least up to AMD762 revision B1 (ie keeping recommanded > values from AMD) ?
Lets try the AMD recommended settings. My old doc doesnt seem to have those. I'll by happy to trial the patch in -ac and see if it plays up the usual suspects for PCI spec violations (tg3 and i2o)
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