From: Dave Airlie <airlied@gmail.com>
To: Lee Revell <rlrevell@joe-job.com>
Cc: Parag Warudkar <kernel-stuff@comcast.net>,
"Dr. David Alan Gilbert" <gilbertd@treblig.org>,
Jon Smirl <jonsmirl@gmail.com>,
ee21rh@surrey.ac.uk, linux-kernel@vger.kernel.org
Subject: Re: DRI (was Re: OpenOffice crashes due to incorrect access permissions on /dev/dri/card*)
Date: Sun, 30 Jan 2005 10:16:30 +1100 [thread overview]
Message-ID: <21d7e99705012915164660cd20@mail.gmail.com> (raw)
In-Reply-To: <1107032714.24676.48.camel@krustophenia.net>
>
> No, XAA is normally used for 2D acceleration. This is hardware
> accelerated but doesn't use DRI, X does 2D accel by talking directly to
> the hardware without the kernel's involvement.
>
well not totally true, X on radeon/r200/r300 cards needs the DRM to
load the microcode for the command processor, this enables some major
speedups in the 2D code (it still talk direct to the card, but needs
the CP loading...) but X runs as root so it has no worries opening the
device...
the issue is with using having the perms set to 0660 since the drm
started supporting sysfs and udev... normally X created the dri
devices and set the permissions to what was in the X config, normally
666.... or 660 with a dri group...
Dave.
next prev parent reply other threads:[~2005-01-29 23:16 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-22 16:56 [Bug 4081] New: OpenOffice crashes while starting due to a threading error Martin J. Bligh
2005-01-22 17:33 ` Matthias-Christian Ott
2005-01-23 2:05 ` Felipe Alfaro Solana
2005-01-23 9:31 ` Matthias-Christian Ott
2005-01-23 2:38 ` Randy.Dunlap
2005-01-23 12:22 ` Martin Josefsson
2005-01-26 21:25 ` Stephen Hemminger
2005-01-27 3:14 ` Parag Warudkar
2005-01-27 17:54 ` Trever L. Adams
2005-01-27 23:49 ` Parag Warudkar
2005-01-28 2:38 ` Trever L. Adams
2005-01-28 17:31 ` Stephen Hemminger
2005-01-28 23:11 ` Parag Warudkar
2005-01-28 23:21 ` Lee Revell
[not found] ` <41FACEC5.6070703@comcast.net>
2005-01-28 23:57 ` Stephen Hemminger
2005-01-29 10:44 ` Richard Hughes
2005-01-29 12:32 ` Bernd Eckenfels
2005-01-29 12:49 ` OpenOffice crashes due to incorrect access permissions on /dev/dri/card* Richard Hughes
2005-01-29 13:02 ` Richard Hughes
2005-01-29 17:40 ` Alessandro Suardi
2005-01-29 19:25 ` Jon Smirl
2005-01-29 19:57 ` Trever L. Adams
2005-01-31 2:34 ` Trever L. Adams
2005-01-29 20:36 ` Lee Revell
2005-01-29 20:40 ` Dr. David Alan Gilbert
2005-01-29 20:48 ` Lee Revell
2005-01-29 20:57 ` Parag Warudkar
2005-01-29 21:05 ` DRI (was Re: OpenOffice crashes due to incorrect access permissions on /dev/dri/card*) Lee Revell
2005-01-29 23:16 ` Dave Airlie [this message]
2005-01-29 20:40 ` OpenOffice crashes due to incorrect access permissions on /dev/dri/card* Gene Heskett
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