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| author | Orlando Chamberlain <orlandoch.dev@gmail.com> | 2023-02-16 21:34:51 +1100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-02-16 14:18:31 +0100 |
| commit | 5beb5627a2481aade9aa630b7ebb7f99442321b6 (patch) | |
| tree | 9bf28b18e4708dfa74db76c13cc0026aca94b9ea /sound/core | |
| parent | ceaa837f96adb69c0df0397937cd74991d5d821a (diff) | |
| download | lwn-5beb5627a2481aade9aa630b7ebb7f99442321b6.tar.gz lwn-5beb5627a2481aade9aa630b7ebb7f99442321b6.zip | |
ALSA: hda/hdmi: Register with vga_switcheroo on Dual GPU Macbooks
Commit 586bc4aab878 ("ALSA: hda/hdmi - fix vgaswitcheroo detection for
AMD") caused only AMD gpu's with PX to have their audio component register
with vga_switcheroo. This meant that Apple Macbooks with apple-gmux as the
gpu switcher no longer had the audio client registering, so when the gpu is
powered off by vga_switcheroo snd_hda_intel is unaware that it should have
suspended the device:
amdgpu: switched off
snd_hda_intel 0000:03:00.1:
Unable to change power state from D3hot to D0, device inaccessible
snd_hda_intel 0000:03:00.1: CORB reset timeout#2, CORBRP = 65535
To resolve this, we use apple_gmux_detect() and register a
vga_switcheroo audio client when apple-gmux is detected.
Fixes: 586bc4aab878 ("ALSA: hda/hdmi - fix vgaswitcheroo detection for AMD")
Link: https://lore.kernel.org/all/20230210044826.9834-9-orlandoch.dev@gmail.com/
Signed-off-by: Orlando Chamberlain <orlandoch.dev@gmail.com>
Link: https://lore.kernel.org/r/20230216103450.12925-1-orlandoch.dev@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
0 files changed, 0 insertions, 0 deletions