I confirm the bug in my notebook`s Radeon HD 4200. The "Workaround 1"
worked with system running a copy of Ubuntu 11.10, which first presented
this problem for me. Thanks a lot for the workaround.
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Bug confirmed with ASUS 1215B with E-450 AMD Processor.
However the "radeon.audio=1" workaround does not work. :-(
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Title:
[ATI HDMI] No HDMI au
I can confirm the bug and the workaround both hold on an up-to-date
Precise system with a Radeon HD 3200.
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Title:
[ATI HDMI] No HDMI audio with ra
** Description changed:
+ Since kernel 3.0, upstream has disabled audio output for all ATI cards
+ in the Radeon driver by default.
+
+ === Workaround 1 ===
+
+ Edit /etc/default/grub and change this line:
+
+ GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
+
+ to this line
+
+ GRUB_CMDLINE_LINUX_D
** Summary changed:
- [GT5676, ATI RS690/780 HDMI, Digital Out, HDMI] No sound at all
+ [ATI HDMI] No HDMI audio with radeon driver (since oneiric)
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