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[Bug 1264636] Re: HDMI Audio out fails on Geforce 8200 (MCP78)

 

I've tested with the ubuntu 14.04 Alpha (12/28 build) and ubuntu 13.10
and was unable to use my keyboard or mouse, this appears to be due to an
upstream kernel bug, https://bugzilla.kernel.org/show_bug.cgi?id=60507.
This problem also exists for 12.04.3 with the 3.11 kernel, however, it
is intermittent and  a reboot will usually clear it up. I will test
12.04 with the latest kernel either later today or in the next couple of
days and update further.


** Bug watch added: Linux Kernel Bug Tracker #60507
   http://bugzilla.kernel.org/show_bug.cgi?id=60507

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https://bugs.launchpad.net/bugs/1264636

Title:
  HDMI Audio out fails on Geforce 8200 (MCP78)

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I have an XFX Geforce 8200 (MCP78) motherboard. While HDMI video out
  works fine, HDMI audio doesn't work with the 3.8 kernel (3.8.0-29 or
  3.8.0-34), I've tried with both the nouveau and nvidia binary drivers.
  The analog outputs work with either driver.

  WORKAROUND: After upgrading to kernel 3.11.10-031110-generic, from the kernel mainline PPA, and using the nouveau drivers I'm able to get audio out over HDMI, using the following options in /etc/modprobe.d/alsa-base.conf:
  options snd-hda-intel single_cmd=1 probe_mask=-1,0x8 unmute iec958

  While using this configuration, I have audio and it's mostly stable,
  however, I'm unable to take advantage of 3d acceleration and HD video
  playback is choppy. If I then use the any of the nvidia drivers (304,
  319, 331, or current) I get frequent crashes, including system
  lockups. I have confirmed with VLC, mplayer2, and speaker-test that no
  audio comes out through HDMI until the 3.11 kernel, nouveau drivers,
  and the modprobe options mentioned are all in place.

  I'm attaching  20131228_logs.zip containing the output of:
  aplay -lL (aplay_out)
  lspci -k  (lspci_out)
  and the following additional files:
  dmesg
  dmesg.0
  lsb-release

  uname -a  returns:
  Linux DVR 3.11.10-031110-generic #201311291453 SMP Fri Nov 29 19:54:20 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
  This is the kernel that has working audio but is unstable with the nvidia binary in use (and choppy hd playback with nouveau)

  ---
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  DistroRelease: Ubuntu 12.04
  InstallationMedia: Mythbuntu 12.04.3 "Precise Pangolin" - Release amd64 (20130820)
  MarkForUpload: True
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  Tags:  precise
  Uname: Linux 3.11.10-031110-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dip lpadmin mythtv plugdev sambashare sudo video

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