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Date: Tue, 5 Feb 2008 01:50:04 GMT
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From: p9_gkvye <p9_gkvye@yahoo.com>
Cc: 
Subject: Re: kern/120262: 6.3-RELEASE i386; [drm] "0MB"; no dri with i915G
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The following reply was made to PR kern/120262; it has been noted by GNATS.

From: p9_gkvye <p9_gkvye@yahoo.com>
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: kern/120262: 6.3-RELEASE i386; [drm] "0MB"; no dri with i915G
Date: Mon, 4 Feb 2008 17:31:56 -0800 (PST)

 [WORKAROUND]
 
 I now have DRI.  I removed a 256-MB RAM module,
 equalizing the RAM to 1 GB per channel, and the
 machine now operates in dual-channel mode.  On boot,
 [drm] still reports 0MB, but the i810 driver in xorg
 sees the kernel reporting positive memory, and
 I830CheckAvailableMemory finds almost 2GB available.
 
 When I wrote that I was using the same hardware as
 with 6.1 in 2006, I had forgotten about adding RAM in
 the interim.  (I had not run 6.1 since the great xorg
 upgrade last spring, and I skipped 6.2.)  At that time
 I had a single 256-MB module operating in
 single-channel mode -- apparently having the second
 channel empty did not create the same problem I've had
 recently.
 
 It seems odd that the RAM would make a difference, but
 I confirmed the workaround by re-installing the 256-MB
 module, and again lost DRI; I removed it once more,
 and DRI returned.
 
 END
 
 
 
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