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<Chamindu>
Hello folks. I have a strange issue on BBB, after a while HDMI stopped working. but the board boots up fine and I can access the board when connected to usb.
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<Chamindu>
it happened on 2 voards
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<zmatt>
check logs I guess? "HDMI stopped working" sounds a bit vague, what exactly are you observing? are you getting no signal whatsoever? is whatever application is using the hdmi output starting normally?
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<Chamindu>
no signal whatsoever
<Chamindu>
I am booting into the buster iot that is installed into the eMMC
<Chamindu>
I have not installed any custom applications
<zmatt>
just to be clear, you mean the hdmi on these boards died entirely, or do you mean hdmi works initially after boot but stops working after a while?
<Chamindu>
died entirely
<zmatt>
hmm, I don't think I've ever heard of anything like that
<zmatt>
then again, I'm not sure how many people actually use the hdmi output...
<Chamindu>
In the final product i will not be using hdmi as well. I will use a display cape
<Chamindu>
is there any configuration setting to enable hdmi?
<zmatt>
in /boot/uEnv.txt you can add a suitable video= parameter to force-enable the HDMI, there's a comment near the bottom that has an example of that
<Chamindu>
thanks i will try that
<zmatt>
I don't expect anything from that, unless the hdmi monitor presence detection is the part that somehow died
<Chamindu>
I saw a warning saying not to connect anything to the board while it is now powered, but that only applies to the gpio right not to hdmi?
<zmatt>
yeah
<zmatt>
for gpio the specific warning is to never expose I/O to a voltage higher than the supply voltage (+ a small margin) for that I/O domain, which is of course 0V when the board is unpowered
<Chamindu>
got it
<Chamindu>
thanks for the info
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<Chamindu>
Is there a gui desktop available in "BeagleBoard.org Debian Buster IoT Image 2020-04-06"
<Chamindu>
This is the default image that came in my BBB rev C
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<Chamindu>
I found that there is a folder called opt/scripts/tools/wm can i use the shell scripts to install a desktop?
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