Ubuntu on Devkit8000 can log into serial port but cannot display DVI

Hi,

I can successfully run Ubuntu 10.04 on Devkit8000. The kernel is
2.6.37-x2, thanks very much to Robert Nelson. The Ubuntu image was
obtained following the instructions on http://elinux.org/BeagleBoardUbuntu.
I am using u-boot 2011.06 compiled for Devkit8000.

The problem encountered was no display was seen at the DVI output.

I had to run setup_sdcard.sh with the option "--use-default-user" to
log in using the serial port for further investigation. However, I am
at a loss over how to proceed. Could someone advise? Like what
commands to probe the cause of the problem? Sorry for my stupid
questions.

Hi,

I can successfully run Ubuntu 10.04 on Devkit8000. The kernel is
2.6.37-x2, thanks very much to Robert Nelson. The Ubuntu image was
obtained following the instructions on http://elinux.org/BeagleBoardUbuntu.
I am using u-boot 2011.06 compiled for Devkit8000.

The problem encountered was no display was seen at the DVI output.

Why the 10.04 image? You should really retest with the newer 11.04
image with the v3.0.1 kernel... The Devkit8000 doesn't get a whole
lot of love as developers who have the board seem to come an go..

I had to run setup_sdcard.sh with the option "--use-default-user" to
log in using the serial port for further investigation. However, I am
at a loss over how to proceed. Could someone advise? Like what
commands to probe the cause of the problem? Sorry for my stupid
questions.

Regards,

Robert Nelson wrote:

> Hi,

> I can successfully run Ubuntu 10.04 on Devkit8000. The kernel is
> 2.6.37-x2, thanks very much to Robert Nelson. The Ubuntu image was
> obtained following the instructions onhttp://elinux.org/BeagleBoardUbuntu.
> I am using u-boot 2011.06 compiled for Devkit8000.

> The problem encountered was no display was seen at the DVI output.

Why the 10.04 image? You should really retest with the newer 11.04
image with the v3.0.1 kernel... The Devkit8000 doesn't get a whole
lot of love as developers who have the board seem to come an go..

I would have bought a beagleboard if I could. For some stupid reason,
beagleboard requires a license from US to be sold in my country of
residence. I reside in Singapore now which is obviously not a
terrorist-prone country. Quite the other way round with the country
being a terrorist target because of its strong political leanings
towards the US.

By the way, I managed to borrow a TI AM37x evaluation module with
WL1271 wireless support temporarily. May I know if your kernel is able
to support TI AM37x? I am using 2.6.37-x2. Thanks.

I'd still try the v3.0.x kernel on the DevKit8000...
These demo images: http://elinux.org/BeagleBoardUbuntu#Demo_Image have
that v3.0.x kernel..

Otherwise i'm sorry but i pushed out 2.6.37-x2 on January 29, 2011,
there's been many kernels between that and now..

Regards,

>> > Hi,

>> > I can successfully run Ubuntu 10.04 on Devkit8000. The kernel is
>> > 2.6.37-x2, thanks very much to Robert Nelson. The Ubuntu image was
>> > obtained following the instructions onhttp://elinux.org/BeagleBoardUbuntu.
>> > I am using u-boot 2011.06 compiled for Devkit8000.

>> > The problem encountered was no display was seen at the DVI output.

>> Why the 10.04 image? You should really retest with the newer 11.04
>> image with the v3.0.1 kernel... The Devkit8000 doesn't get a whole
>> lot of love as developers who have the board seem to come an go..

> I would have bought a beagleboard if I could. For some stupid reason,
> beagleboard requires a license from US to be sold in my country of
> residence. I reside in Singapore now which is obviously not a
> terrorist-prone country. Quite the other way round with the country
> being a terrorist target because of its strong political leanings
> towards the US.

> By the way, I managed to borrow a TI AM37x evaluation module with
> WL1271 wireless support temporarily. May I know if your kernel is able
> to support TI AM37x? I am using 2.6.37-x2. Thanks.

I'd still try the v3.0.x kernel on the DevKit8000...
These demo images:http://elinux.org/BeagleBoardUbuntu#Demo_Imagehave
that v3.0.x kernel..

Otherwise i'm sorry but i pushed out 2.6.37-x2 on January 29, 2011,
there's been many kernels between that and now..

No problem. Your website has been a great help already. May I ask
which compiler did you use for your kernels? I would like to use the
same one. It would be great if you could tell me the compiler to use
for 2.6.37 and 3.0. Thank you. The kernels I compiled without changing
anything (just run build_kernel.sh) had problems booting up. For
example, your kernel size is 4.1MB. Mine is 4.4MB using kernel
2.6.37x2.

I have tried using Code Sourcery arm-2011.03-42-arm-none-eabi.bin and
arm-2011.03-41-arm-none-linux-gnueabi.bin. Both generated uImage of
4.4MB size.

>> > Hi,

>> > I can successfully run Ubuntu 10.04 on Devkit8000. The kernel is
>> > 2.6.37-x2, thanks very much to Robert Nelson. The Ubuntu image was
>> > obtained following the instructions onhttp://elinux.org/BeagleBoardUbuntu.
>> > I am using u-boot 2011.06 compiled for Devkit8000.

>> > The problem encountered was no display was seen at the DVI output.

>> Why the 10.04 image? You should really retest with the newer 11.04
>> image with the v3.0.1 kernel... The Devkit8000 doesn't get a whole
>> lot of love as developers who have the board seem to come an go..

> I would have bought a beagleboard if I could. For some stupid reason,
> beagleboard requires a license from US to be sold in my country of
> residence. I reside in Singapore now which is obviously not a
> terrorist-prone country. Quite the other way round with the country
> being a terrorist target because of its strong political leanings
> towards the US.

> By the way, I managed to borrow a TI AM37x evaluation module with
> WL1271 wireless support temporarily. May I know if your kernel is able
> to support TI AM37x? I am using 2.6.37-x2. Thanks.

I'd still try the v3.0.x kernel on the DevKit8000...
These demo images:http://elinux.org/BeagleBoardUbuntu#Demo_Imagehave
that v3.0.x kernel..

Otherwise i'm sorry but i pushed out 2.6.37-x2 on January 29, 2011,
there's been many kernels between that and now..

No problem. Your website has been a great help already. May I ask
which compiler did you use for your kernels? I would like to use the
same one. It would be great if you could tell me the compiler to use
for 2.6.37 and 3.0. Thank you. The kernels I compiled without changing
anything (just run build_kernel.sh) had problems booting up. For
example, your kernel size is 4.1MB. Mine is 4.4MB using kernel
2.6.37x2.

Most of the time I actually use the ubuntu/linaro cross compiler, or
Angstrom's 4.3.x gcc:

natty: gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu3)

(in ubuntu: sudo apt-get install gcc-arm-linux-gnueabi)

3.2M : deploy/3.0.2-x2.uImage

Alot of the size difference is from using lzma compression, which i
didn't have enabled in the 2.6.37's snapshots..

I have tried using Code Sourcery arm-2011.03-42-arm-none-eabi.bin and
arm-2011.03-41-arm-none-linux-gnueabi.bin. Both generated uImage of
4.4MB size.

Regards,