From: Jethro Beekman <dri-devel@jbeekman.nl>
To: dri-devel@lists.freedesktop.org
Subject: nouveau optimus HDMI audio support
Date: Sun, 06 Oct 2013 14:04:49 -0700 [thread overview]
Message-ID: <5251D071.1080108@jbeekman.nl> (raw)
Even with Dave Airlie's recent patch set (
http://lists.freedesktop.org/archives/dri-devel/2013-August/042854.html ), I'm
still having trouble getting HDMI audio to work on my optimus laptop. I'm
running Linux 3.12.0-rc3 on a Lenovo ThinkPad T420s. When I set my BIOS graphics
option to 'Discrete', I get the following two devices in lspci:
01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [Quadro NVS 4200M]
(rev a1)
01:00.1 Audio device: NVIDIA Corporation HDMI Audio stub (rev a1)
When I set the option to 'Optimus', the 01:00.1 device disappears completely.
This is dmesg when loading nouveau in the Optimus configuration:
pci 0000:01:00.0: optimus capabilities: enabled, status dynamic power, hda bios
codec supported
VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG_.VID_ handle
[drm] hdmi device not found 1 0 1
I modified snd-hda-intel to report which devices it's probing, this is the only
one that shows up:
hda-intel: azx_probe: 0000:00:1b.0
Any ideas what's going on?
Jethro Beekman
next reply other threads:[~2013-10-06 21:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-06 21:04 Jethro Beekman [this message]
2013-10-06 22:00 ` nouveau optimus HDMI audio support Dave Airlie
2013-10-06 22:45 ` Jethro Beekman
2013-10-06 23:48 ` Dave Airlie
2013-10-07 0:30 ` Jethro Beekman
2013-10-07 2:20 ` Dave Airlie
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