2.6.26-rc3-omap vs N810 and Xomap

2.6.26-rc3-omap vs N810 and Xomap

[Radoslaw Szkodzinski]

Hello,

I've managed to get 2.6.26-rc3-omap booting (was quite easy actually).
Now I hit a road block - I get everything to start, it boots nicely
(checked with SSH), but fails to display anything except a white screen.
Looks like Xomap can't (re)init framebuffer, or focus isn't transferred
to it.
Any known possible reasons?

AstralStorm

Re: 2.6.26-rc3-omap vs N810 and Xomap

[Tony Lindgren]

* Radoslaw Szkodzinski <astralstorm@gen2.org> [080525 11:49]:
> Hello,
> 
> I've managed to get 2.6.26-rc3-omap booting (was quite easy actually).
> Now I hit a road block - I get everything to start, it boots nicely
> (checked with SSH), but fails to display anything except a white screen.
> Looks like Xomap can't (re)init framebuffer, or focus isn't transferred
> to it.
> Any known possible reasons?

Do you have any patches applied in addition to patching the machine_id?

I don't know about xomap, but last time I tried xserver-xorg-xfbdev
from debian unstable worked. That is, without touchscreen until this
patch is merged:

https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/219424

Are you starting xomap from chroot?

Tony

Re: 2.6.26-rc3-omap vs N810 and Xomap

[astralstorm]

> * Radoslaw Szkodzinski <astralstorm@gen2.org> [080525 11:49]:
>> Hello,
>>
>> I've managed to get 2.6.26-rc3-omap booting (was quite easy actually).
>> Now I hit a road block - I get everything to start, it boots nicely
>> (checked with SSH), but fails to display anything except a white screen.
>> Looks like Xomap can't (re)init framebuffer, or focus isn't transferred
>> to it.
>> Any known possible reasons?
>
> Do you have any patches applied in addition to patching the machine_id?
>

Yes, muru.com patches, but these shouldn't cause that.

> I don't know about xomap, but last time I tried xserver-xorg-xfbdev
> from debian unstable worked. That is, without touchscreen until this
> patch is merged:
>
> https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/219424
>
> Are you starting xomap from chroot?

System boots from initramfs and is pivot_rooted. Technically, it's not a
chroot. It's almost the default N810 initramfs.

Re: 2.6.26-rc3-omap vs N810 and Xomap

[Frantisek Dufka]

Radoslaw Szkodzinski wrote:
> Hello,
> 
> I've managed to get 2.6.26-rc3-omap booting (was quite easy actually).
> Now I hit a road block - I get everything to start, it boots nicely
> (checked with SSH), but fails to display anything except a white screen.
> Looks like Xomap can't (re)init framebuffer, or focus isn't transferred
> to it.
> Any known possible reasons?
> 

Maybe your Xomap is built with older omapfb.h? I don't know about 2.6.2x 
kernels but I was bitten by this when trying Xomap binary built for N800 
with 2.6.18 on 770 with 2.6.16 kernel. There was change in 
OMAPFB_UPDATE_WINDOW ioctl and the symptomps were similar.

Frantisek

Re: 2.6.26-rc3-omap vs N810 and Xomap

[astralstorm]

> Radoslaw Szkodzinski wrote:
>> Hello,
>>
>> I've managed to get 2.6.26-rc3-omap booting (was quite easy actually).
>> Now I hit a road block - I get everything to start, it boots nicely
>> (checked with SSH), but fails to display anything except a white screen.
>> Looks like Xomap can't (re)init framebuffer, or focus isn't transferred
>> to it.
>> Any known possible reasons?
>>
>
> Maybe your Xomap is built with older omapfb.h? I don't know about 2.6.2x
> kernels but I was bitten by this when trying Xomap binary built for N800
> with 2.6.18 on 770 with 2.6.16 kernel. There was change in
> OMAPFB_UPDATE_WINDOW ioctl and the symptomps were similar.
>

Possible, but nobody has the sources for Xomap I think. It's the version
built versus Nokia patched 2.6.21-omap, sources of which are available.
I'll check the ioctl and if that's the cause, move the new and create a
compat one.

Thanks for your help.

Re: 2.6.26-rc3-omap vs N810 and Xomap

[astralstorm]

>> Radoslaw Szkodzinski wrote:
>>> Hello,
>>>
>>> I've managed to get 2.6.26-rc3-omap booting (was quite easy actually).
>>> Now I hit a road block - I get everything to start, it boots nicely
>>> (checked with SSH), but fails to display anything except a white
>>> screen.
>>> Looks like Xomap can't (re)init framebuffer, or focus isn't transferred
>>> to it.
>>> Any known possible reasons?
>>>
>>
>> Maybe your Xomap is built with older omapfb.h? I don't know about 2.6.2x
>> kernels but I was bitten by this when trying Xomap binary built for N800
>> with 2.6.18 on 770 with 2.6.16 kernel. There was change in
>> OMAPFB_UPDATE_WINDOW ioctl and the symptomps were similar.
>>
>
> Possible, but nobody has the sources for Xomap I think.

Correction, the source of Nokia Xomap are open, so I'll probably just need
a rebuild.