[Bug 19002] Radeon rv730 AGP/KMS/DRM kernel lockup

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Wed Dec 15 07:45:25 PST 2010


--- Comment #31 from Alex Deucher <alexdeucher at gmail.com>  2010-12-15 15:45:13 ---
(In reply to comment #28)
> Is there, anywhere, any documentation with reasonable information on what
> settings in the xorg.conf and radeon manpages no longer apply in xorg.conf with
> kms, and what the parallel radeon.* kernel commandline options are?
> Either updating the manpages, or a separate kms manpage (with suitable SEE ALSO
> section mentions from existing manpages), would be /wonderful/.  Or a kernel
> Documentation/radeon.txt or kms.txt file.  (And, couldn't all the kernel
> display/graphics related Docs be moved into a display/graphics/video subdir? 
> Seems about time.)

I updated the radeon man page last week to reflect what options are KMS vs.
UMS.  Grab the latest xf86-video-ati from git master.

> > > BTW, /should/ a larger aperture work?  Given that half of it's AGGART IOMMU,
> > > should larger == better?
> > 
> > Bigger isn't necessarily better, it just means more pages can be mapped into
> > the gart.  We default to 512 MB on non-AGP systems.
> Thanks.  Useful information.
> > > 4) dmesg says AGP v3 device in 8x mode.  [L]ast I tried,
> > > 4x and 8x worked but 1x and 2x were broken.
> > 
> > AGP v3 devices only support 4x and 8x modes.
> Now if only that were documented in the manpages... =:^(
> It does explain why modes below 4x wouldn't work, tho. =:^)

It's not really radeon specific, but it would probably be nice to mention it

(In reply to comment #30)
> I suggest to close the current one and open a new one - there are actually 2:
> - Radeon AGP broken on my system and
> - Driver not loading (in PCI mode) because of the ttm_background_bind issue
> May even be worth openeing 2 new bugs unless you think they are closely
> related.


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