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DLP2000: EVM on BBB only outputs blue image

Robert Finger
Genius 16212 points
Part Number: DLP2000
Other Parts Discussed in Thread: DLPDLCR2000EVM

Hi,

One of my customers is trying to get the DLPDLCR2000EVM running with a BeagleBone Black. But he is not able to get the Debian desktop out of the DLP. The image is shown correctly on a HDMI monitor, but the DLP only outputs the image shown below. In stand alone mode the DLP EVM outputs the correct test image from flash.

I have exactly the same setup and same software and on my board it's working fine. The customer and me are using this Debian image: 

https://rcn-ee.net/rootfs/bb.org/testing/2018-01-07/stretch-lxqt/bone-debian-9.3-lxqt-armhf-2018-01-07-4gb.img.xz

We are using these instructions on the console to get the output:

echo 48 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio48/direction
echo 1 > /sys/class/gpio/gpio48/value
i2cset -y 2 0x1b 0x0b 0x00 0x00 0x00 0x00 i
i2cset -y 2 0x1b 0x0c 0x00 0x00 0x00 0x1b i

On my board the Debian desktop is shown after these commands. On my customers setup the picture below is shown. The black box on the top left shows up after the last i2cset command. What could cause this issue?

Thanks & best regards,
  Robert