Help debug latest rawhide images
Peter Robinson
pbrobinson at gmail.com
Mon Feb 16 10:14:47 UTC 2009
On Mon, Feb 16, 2009 at 1:49 AM, Chris Ball <cjb at laptop.org> wrote:
> Hi,
>
> > Well, I was right about olpc_has_dcon() failing, and wrong about
> > the reason why. This upstream commit breaks model detection, and
> > reverting it gets the FB working again:
>
> A proper fix is headed upstream now:
>
> http://git.kernel.org/?p=linux/kernel/git/mingo/linux-2.6-x86.git;a=commit;h=e49590b6dd356f8ef10ba3531a29e5086f6f2e3a
>
> > Next up is X, which is failing because it doesn't think a DCON is
> > present, because /sys/platform/devices/dcon doesn't exist, because
> > olpc_dcon isn't loaded, because it isn't upstream. I'll work on a
> > better detection mechanism to put in the geode driver -- Jordan,
> > any suggestions?
>
> There were a few problems here:
>
> * The DCON detection problem above. I've solved this by just changing
> the test to point to a driver that's actually upstream:
>
> http://cgit.freedesktop.org/xorg/driver/xf86-video-geode/commit/?id=990ff710c6220cc3d1ba6b9e8fb972bd168b4472
>
> * The current HEAD was segfaulting, also now solved in the driver.
>
> * I eventually worked out that "modprobe msr" is needed before starting
> the driver on Rawhide -- if you don't, you get a screen full of white
> snow. We'll need to get this logic ("if on an xo, do modprobe msr
> before X starts") into Fedora proper somehow. Any ideas?
Is there anyway to detect and load this using HAL rules?
> I'll release a new version of the X driver into Rawhide within a day or
> so, and the kernel patch above should make its way into Rawhide via
> Linus at a similar pace. Once both of these are applied, I'm happy to
> report that I can get to a functional GNOME desktop, using Sebastian's
> olpc-gnome kickstart file.
Is this on the net somewhere?
Peter
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