Hi Takashi,
thanks for your reply. I tried that with
cat /proc/asound/card0/codec#0
but that doesn't help. I'm digging me through the kernel config right
now. May have to change something else.
I simply could create a patch on my gentoo system switching from
patch_nvhdmi to patch_nvhdmi_legacy for every new kernel, but that won't
work forever.
If you have other thinks i could try i'd appreciate to hear them.
kind regards
Martin
On 02.02.20 09:37, Takashi Iwai wrote:
On Sat, 01 Feb 2020 16:28:08 +0100,
Martin Regner wrote:
Hi there,
since i updated to kernel 5.5 i have no sound over hdmi anymore (GeForce RTX
2070).
With the previous kernel 5.4.14 everything is fine.
Although i got sound with speaker-test -D hdmi:CARD=NVidia,DEV=2 -c 2 -r
44100, pavucontrol shows all hdmi sound devices as unplugged.
I bisected it down to this commit (5398e94fb753d022301825ebfa5f7cf8a660d8eb)
and changed the line
HDA_CODEC_ENTRY(0x10de0093, "GPU 93 HDMI/DP", patch_nvhdmi)
to
HDA_CODEC_ENTRY(0x10de0093, "GPU 93 HDMI/DP", patch_nvhdmi_legacy)
Now it's working again. I'm not sure if this is a problem with pulseaudio or
if the RTX 2070 does not support the mentioned codec.
The runtime PM turns off the link, so the hotplug notification won't
be delivered as default. Please try reading the corresponding proc
file, /proc/asound/card*/codec* file. This may power up the codec and
trigger the hotplug detection if that's the cause.
Takashi
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