Re: Problems with framebuffer in 2.6.22-git17

Adrian McMenamin
2007-07-27T19:47:43Z

On 26/07/07, Antonino A. Daplas <adaplas@gmail.com> wrote:

>
> I'm also confused. Can you change the color depth to 32 bpp ('fbset
> -depth 32')? I'm thinking of a possible pseudo_palette overrun.
>

The code behaves in exactly the same way with the bit depth set to 32
and without the patch reversion (ie forces a reboot).

With the parch reverted there is a flicker of output on the screen
before a reboot is forced (it will boot with 16bpp though the colour
is a bit iffy)

With the patch reverted and 24bpp, it oopses before freezing (with two
odd looking boot logos on the screen):

[ 1.485628] Console: switching to colour frame buffer device 80x30
[ 1.553925] Unable to handle kernel paging request at virtual
address 55ff5504
[ 1.562351] pc = 8c0033a0
[ 1.565402] Unable to handle kernel paging request at virtual
address 0c1e8688
[ 1.573784] pc = 8c00b9e2
[ 1.576833] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.585205] pc = 8c00b9e2
[ 1.588258] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.596641] pc = 8c00b9e2
[ 1.599688] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.608069] pc = 8c00b9e2
[ 1.611117] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.619488] pc = 8c00b9e2
[ 1.622549] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.630927] pc = 8c00b9e2
[ 1.633979] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.642370] pc = 8c00b9e2
[ 1.645421] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.653793] pc = 8c00b9e2
[ 1.656854] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.665226] pc = 8c00b9e2
[ 1.668273] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.676664] pc = 8c00b9e2
[ 1.679715] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.688086] pc = 8c00b9e2
[ 1.691191] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.699557] pc = 8c00b9e2
[ 1.702603] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.710988] pc = 8c00b9e2
[ 1.714036] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.722408] pc = 8c00b9e2
[ 1.725468] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.733837] pc = 8c00b9e2
[ 1.736884] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.745270] pc = 8c00b9e2
[ 1.748314] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.756696] pc = 8c00b9e2
[ 1.759745] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.768111] pc = 8c00b9e2
[ 1.771155] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.779538] pc = 8c00b9e2
[ 1.782584] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.790997] pc = 8c00b9e2
[ 1.794045] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.802452] pc = 8c00b9e2
[ 1.805500] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.813888] pc = 8c00b9e2
[ 1.816937] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.825326] pc = 8c00b9e2
[ 1.828378] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.836753] pc = 8c00b9e2
[ 1.839846] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.848215] pc = 8c00b9e2
[ 1.851263] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.859649] pc = 8c00b9e2
[ 1.862695] Unable to handle kernel paging request at virtual
address 0c1e81ec
[ 1.871066] pc = 8c00b9e2

In short all versions of the driver seem to be broken in some way, but
it won't boot at all unless the patch is reverted