At Tue, 10 Dec 2013 22:46:34 +0200, Anssi Hannula wrote:
In case a single HDA card has both HDMI and S/PDIF outputs, the S/PDIF outputs will have their IEC958 controls created starting from index 16 and the HDMI controls will be created starting from index 0.
However, HDMI simple_playback_build_controls() as used by old VIA and NVIDIA codecs incorrectly requests the IEC958 controls to be created with an S/PDIF type instead of HDMI. In case the card has other codecs that have HDMI outputs, the controls will be created with wrong index=16, causing them to e.g. be unreachable by the ALSA "hdmi" alias.
Fix that by making simple_playback_build_controls() request controls with HDMI indexes.
Not many cards have an affected configuration, but e.g. ASUS M3N78-VM contains an integrated NVIDIA HDA "card" with:
- a VIA codec that has, among others, an S/PDIF pin incorrectly labelled as an HDMI pin, and
- an NVIDIA MCP7x HDMI codec.
Reported-by: MysterX on #openelec Tested-by: MysterX on #openelec Signed-off-by: Anssi Hannula anssi.hannula@iki.fi Cc: stable@vger.kernel.org # 3.8+
Thanks, nice catch. Applied it now.
Takashi
sound/pci/hda/patch_hdmi.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 556d47231f11..f5060fc7c303 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -2326,8 +2326,9 @@ static int simple_playback_build_controls(struct hda_codec *codec) int err;
per_cvt = get_cvt(spec, 0);
- err = snd_hda_create_spdif_out_ctls(codec, per_cvt->cvt_nid,
per_cvt->cvt_nid);
- err = snd_hda_create_dig_out_ctls(codec, per_cvt->cvt_nid,
per_cvt->cvt_nid,HDA_PCM_TYPE_HDMI);-- 1.8.1.5