Le Thursday 30 August 2007 15:52:10 Duncan, vous avez écrit :
> Vincent ETIENNE <[EMAIL PROTECTED]> posted
> [EMAIL PROTECTED], excerpted below, on Wed, 29 Aug 2007
>
> 23:10:45 +0200:
> > I own a gigabyte motherboard ( G33-DS3 ) with intel G33 chipset and i 'm
> > unable to made drm working. The problem is (as far as i have understood
> > it) that due to having 4G ram my mtrr is full so X11 can't succeed in
> > adding a new entry to made it write-combining.
>
> This probably won't help you directly, but here, running 8 gig memory on
> a dual Opteron Tyan (s2885) mobo, original AMD 8000 chipset, with a
> Radeon 9200SE, with the native kernel and xorg drivers, DRM works fine,
> even tho it /does/ protest about running out of MTRRs.
Very interesting indeed, i don't know that it was possible to have DRM without
MTRR : will have to found some documentation
>
> So running out of MTRRs shouldn't be an absolutely critical error to
> getting DRM running, or at least it isn't on some chipsets/cards/drivers.
>
> However, why I /really/ posted is to ask if anyone has any solid info on
> getting MTRRs setup correctly, when one is obviously running out. How
> does one find out what each one is for and figure out how to prioritize
> them? I understand that they can overlap if necessary, a larger one with
> a smaller one superseding it for a specific area of memory. If that's
> so, in theory, it may be possible to optimize placement to use fewer,
> thus freeing a few for other usage. Or as I said, maybe prioritize them,
> so something legacy isn't given its own MTRR (if the larger one
> underneath it is suitably configured) thus allowing it to be used for
> video or other high(er) priority applications.
Yes don't seem easy to found a more or less complete and reliable
documentation source. For the momemnt i have only found some sparse
information in a forum about rage 3D card. But none up to date. For reference
here is the link
http://www.rage3d.com/board/showthread.php?threadid=33736241
and http://www.rage3d.com/board/showthread.php?t=33821469
I have try with only 2G ram. Everything seems to work ( DRM is activated, X11
start, open gl crash as soon as an application use it... but it may be
unrelated )
>
> So basically I'm seconding your request. Point me at some really
> practical usable info on these things, so I can either optimize my usage,
> or be fully satisfied that it's not possible to do so, instead of
> thinking it /probably/ is based on very spotty and incomplete knowledge
> some of which is of doubtful validity or general application, but not
> knowing so or knowing how.
>
If i found some interresting information, i will post the link...
Thanks for your help
> --
> Duncan - List replies preferred. No HTML msgs.
> "Every nonfree program has a lord, a master --
> and if you use the program, he is your master." Richard Stallman
Vincent
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