Beagleboard xM C +Ubuntu 12.04 + DVI

I have been trying to create an SD Card outside of the SD card that came
with my beagleboard which allows output on the DVI Port. Over these past
3 weeks I have tried every reference powered by Linux possible and
through many emails and IRC chat sessions without any success.

At the present time I have moved back to ubuntu and following the steps
outlined at http://www.embeddedrelated.com/showarticle/138.php which was
using work by Robert C Nelson. The only difference is that I wanted to
run LXDE instead of XCFE4 for this project. I have the documentation to
install java working on all of the SD Cards with the different version
of Linux but each one of them I am unable to get console display on the
DVI port.

If I insert the SD Card that came with the beagleboard, I get output on
the monitor and have even set my resolution to the same that came on the
sd card when I purchased the beagleboard. I have a feeling that I am
just overlooking something minor and just have not been able to pinpoint
it.

The ubuntu image that I currently have on my SD card is
ubuntu-12.04-r3-minimal-armhf

Hi Graham

I have been trying to create an SD Card outside of the SD card that came
with my beagleboard which allows output on the DVI Port. Over these past
3 weeks I have tried every reference powered by Linux possible and
through many emails and IRC chat sessions without any success.

At the present time I have moved back to ubuntu and following the steps
outlined at http://www.embeddedrelated.com/showarticle/138.php which was
using work by Robert C Nelson. The only difference is that I wanted to
run LXDE instead of XCFE4 for this project. I have the documentation to
install java working on all of the SD Cards with the different version
of Linux but each one of them I am unable to get console display on the
DVI port.

If I insert the SD Card that came with the beagleboard, I get output on
the monitor and have even set my resolution to the same that came on the
sd card when I purchased the beagleboard. I have a feeling that I am
just overlooking something minor and just have not been able to pinpoint
it.

The ubuntu image that I currently have on my SD card is
ubuntu-12.04-r3-minimal-armhf

Is this the same exact monitor you were having trouble with 3 days ago
when trying to install Debian Squeeze that was saying unsupported
video?

If so, the same question applies that I replied with in the previous
message: What is the monitor brand/model number? It probably doesn't
support the default 720p resolution these images setup by default...
(Angstrom usually defaults to a different resolution..)

Regards,

The Monitor is a Vizio E220MV which is a full 1080P monitor. I will also try 2 LG Monitors in our conference room to see if they wakeup when the BeagleBoard is plugged into them. I figured that with the Monitor capable of 1080p that it would downgrade to 720p if the signal was at the lower resolution.

From their tech manual:
640x480, 800x600, 1024x768, 1360x768 via RGB or 1366x768 via HDMI. 3

with my images we default to : "1280x720MR-16@60"

so...

Change dvimode in uEnv.txt to "1024x768MR-16@60"

and lets see what happens...

Regards,

I just tried it Beagle XM on the 2 LG 52" 1080p LCD monitors I have access to and everything worked. Now to work on the Vizio Monitor to figure out what is going on. I have switched HDMI Ports on the monitor all with the same result. I have a Lifesize Express 220 Hooked to the same Vizio Monitor and it is reporting 1280x720@60. Might just have to get another Monitor.

I have already changed the dvimode line to 1280x768MR-16@60 as mentioned in many posts that I am trying to follow. I have just changed it back and rebooting. Which still is nothing on the monitor. I will also go try the LG monitor at the 1280x720MR-16@60 to see what happens which I feel it will work on the LG.

On the LG monitor when I set the resolution to 1280x720-MR-16@60, the picture was just outside of the the viewing area so I changed it back to 1024x768MR-16@60.

Guess I will get my exercize today between my desk and the Conference Room with the LG monitor. Might have to upgrade one of my Dual Monitor’s to one that supports HDMI so I can do this at my desk.

Well after additional searching on this issue I was able to solve this
problem this morning by changing the

dvimode=024x768MR-16@60

to

dvimode=hd720

within the uEnv.txt file

Now, I can finish up the image and place an order for nearly 100 more
devices to complete this project which will make my job easier to manage.