Bug#646306: radeon PALM: corrupted display in wheezy with Asus 1215b
On Mon, Mar 19, 2012 at 09:59:08PM -0500, Jonathan Nieder wrote:
> Hi,
>
> Touko Korpela wrote:
>
> > Machine: Asus 1215B
> [...]
> > When booting installed system, screen is badly corrupted.
> > Recovery mode from boot menu doesn't help.
> > Strange thing is that this same machine works fine in squeeze install that
> > has updated kernel and other debs from wheezy (kernels 2.6.39,3.0.0-3 and
> > 3.0.0-5 work fine).
> > Squeeze install was made first in Samsung laptop and copied to usb stick
> > where it runs.
>
> Strange. Sorry for the slow reply.
>
> [...]
> > Here is pictures (hosted at photobucket) from this event:
> >
> > http://bit.ly/nPoa0Q
>
> (purple noise in alternating violet and magenta horizontal ribbons, with
> a lighter square ~5 ribbons tall near the center)
>
> > http://bit.ly/roN6nZ
>
> (a section of black, above some white, some snow, some white, some snow
> filling most of the screen, then some alternating violet and magenta
> horizontal ribbons, interrupted by a jagged black band)
>
> > attached is dmesg from working install (#645997 lists some more hw info)
> [...]
> > [ 8.089691] [drm] initializing kernel modesetting (PALM 0x1002:0x9802 0x1043:0x84A5).
>
> Did you eventually end up with a successful install? What kernel and
> userspace are on this machine now?
I managed to boot into system by giving boot parameter (forgot what exactly,
found it from net) that disabled kms. After that I installed
firmware-linux-nonfree and system works now fine. I'm using wheezy/sid
userspace and kernel (now 3.2.10-1, 3.0.x worked too).
Kernel should fall back to non-kms mode if firmware isn't installed
(didn't test if current kernel works better with missing fw than 3.0).
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