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When I try playing video using the command:

omxplayer -o hdmi

sound will not work unless I also include the -r switch.

The only problem with this is when the video is done it leaves a black screen up and I am unable to use the device until restart.

Anyone have any ideas?

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Easiest thing to do is not using the terminal over HDMI but instead log in from another computer using SSH … –  filmor Jan 12 '13 at 10:56
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2 Answers

I was having the same problem on one of the TV's i'm using for a project (I have a few different models and i'm trying to create a generic image that works on all of them).

As part of the exit sequence if you run tvservice -o && tvservice -p && fbset -depth 8 && fbset -depth 16 it should refresh the power state and wake up the display.

tvservice -o sends the signal to sleep the HDMI device.

tvservice -p brings it back on with preferred settings

fbset -depth 8 && fbset -depth 16 forces a change that brings X back after the sleep.

This also resolved an issue i had with the display looking like garbage after playing a standard definition video (again; only on one of the displays i have been testing against)

In my situation i have an application monitoring for omxplayer to exit which then executes that sequence. You could simply wrap the call to omxplayer or edit the omxplayer script directly.

Note: i found this thread because i was trying to find a solution to audio not working on an experimental branch of omxplayer that supports constant looping and -r fixed me up. so thanks for that. =-)

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Have you uncommented hdmi_drive=2 from /boot/config.txt?

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