Public bug reported: After updating to Quantal (worked fine in Precise and previous revisions), My TV is being fooled into thinking that an audio signal is being carried from the HDMI input (not possible as using a DVI-HDMI cable). As a result, the TV looks for HDMI audio and ignores the analogue input TV analogue input making it impossible to get audio to the TV.
I believe this relates to recent changes in nouveau. Using "nouveau.hdmi_disable" parameter fixes the audio issue but limits the resolution I can use. It seems some of this behaviour is addressed by EDID quirks (https://bugzilla.redhat.com/show_bug.cgi?id=806091 , and https://patchwork.kernel.org/patch/1309291/) which allow for selectively disabling the HDMI audio component in nouveau. but I don't think they are implemented yet in Quantal kernel? Hardware us Mac mini 3,1. Same behaviour occurs using mini DP or mini DVI connector. TV is an LG 32LE5900, The same is probably true of all LE5900s. ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1123097 Title: Nouveau advertises HDMI audio capability over minidisplayport and mini dvi connectors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1123097/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
