Originally posted by michal
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What Not To Expect From The Linux 2.6.40 Kernel
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With the open-source Radeon kernel driver, there still is not the bits in place yet for implementing Hyper-Z and Radeon HD 5000/6000 series HDMI audio support...
I recently got a couple of HD5450's and although they are not being used in HTPC's, I was looking forward to connecting them to my TV via HDMI occasionally.
Is anyone working on this? I can't program, but I might be able to help with testing.
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HDMI audio broken in 2.6.40?
It looks like HDMI audio may be more generally broken in 2.6.40 - see here in FedoraForums http://www.fedoraforum.org/forum/sho...d.php?t=267793 I had pretty much the identical experience to the OP here, specifically:-- No HDMI audio, even though no error messages and PA volume control shows active sound levels in bars. Other sound output devices OK.
- Flash video jerky and 2-3 times speeded up. This is with Adobe proprietary x86_64 beta Flash plugin
- All MythTV video - file, DVD or live TV (DVB-T) - fast & jerky, same as with Flash plugin. However same video content (file or DVD) plays OK in other applications (Kaffeine, Dragon)...apart from no HDMI audio
I am on x86_64. Graphics card is HD 4670 (RV730) with X.Org radeon driver and KMS. However the HDMI audio problem appears to be independent of graphics hardware / driver, and distribution. It is conceivable that the HDMI audio and video playback issues are independant, and just came up together. If I boot into 2.6.38.8-35 everything goes back to normal.
There are some reports that the HDMI audio at least is fixed in the very latest kernel versions; however it looks like quite a significant regression.
Andrew
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Originally posted by AndyW View PostIt looks like HDMI audio may be more generally broken in 2.6.40 - see here in FedoraForums http://www.fedoraforum.org/forum/sho...d.php?t=267793 I had pretty much the identical experience to the OP here, specifically:-- No HDMI audio, even though no error messages and PA volume control shows active sound levels in bars. Other sound output devices OK.
- Flash video jerky and 2-3 times speeded up. This is with Adobe proprietary x86_64 beta Flash plugin
- All MythTV video - file, DVD or live TV (DVB-T) - fast & jerky, same as with Flash plugin. However same video content (file or DVD) plays OK in other applications (Kaffeine, Dragon)...apart from no HDMI audio
I am on x86_64. Graphics card is HD 4670 (RV730) with X.Org radeon driver and KMS. However the HDMI audio problem appears to be independent of graphics hardware / driver, and distribution. It is conceivable that the HDMI audio and video playback issues are independant, and just came up together. If I boot into 2.6.38.8-35 everything goes back to normal.
There are some reports that the HDMI audio at least is fixed in the very latest kernel versions; however it looks like quite a significant regression.
Add "radeon.audio=1" to GRUB.
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Originally posted by agd5f View PostThe current hdmi code causes blank screens on a lot of systems if audio is enabled. Until that gets fixed properly, I thought it better to disable it.
Can someone with account on fedoraforum.org explain Fedora users the issue? http://www.fedoraforum.org/forum/sho...=267793&page=2
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Yeah, it's a tough call. Unfortunately, it's dependant on the TV/monitor and how it interprets the hdmi packets. Blank screen is not something a lot of users can deal with, so I opted to go in favor of working display for now.
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Thanks for the suggestions and explanation. With this parameter HDMI audio is restored, and the other video playback issues are fixed as well - so they obviously share the same underlying cause. I have cross-posted over on FedoraForum as well.
Thanks,
Andrew
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