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59578
October 23rd, 2009 14:00
Audio over HDMI (DisplayPort) on E6500
Digital audio output over HDMI (via DP to HDMI converter) works fine out of the box in Vista on my Latitude E6500. Does not work at all in linux (only the single analog headphone output is listed as available outputs). I've tried a number of things, including different kernel versions, different alsa versions, different nVidia driver versions (I have the nvidia model of this laptop) and manually selecting model options for the alsa driver. Using the display over the DisplayPort works perfectly fine. Anybody have any suggestions or know if it's being worked on?
Please don't reply just to say "works in windows" (i know), "never tried it but it should work fine" (not helpful), "what is a DisplayPort?" (def not helpful), or "HDMI doesn't do audio" (not true).
endotoxin
1 Message
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December 7th, 2010 13:00
My guess is that you have already discovered that HDMI is unsupported in Linux due to the copy protection scheme called HDCP. Which yes, has been cracked, and no, won't really lend itself toward HDMI support in Linux. At present, only MacOS and Windows offer HDMI support. You might look into composite or VGA video formats, with some sort of 3/32nd audiojack converter.
toaster53
5 Posts
1
January 2nd, 2011 14:00
I had the same problem and found the solution on the Ubuntu forum:
http://ubuntuforums.org/showthread.php?t=1194751&page=4
"HDMI audio output works. As soon as you plug the HDMI cable in, you right click the volume button -> Sound Preferences -> Hardware. Then under Profile at the bottom switch to Digital Stereo (HDMI) Output. Done."
In other words: Just turn it on, in sound preferences -> hardware!
Duh!!!