Hi,
On 28/07/2023 20:08, Pierre-Louis Bossart wrote:
On 7/27/23 13:32, Alex Dewar wrote:
Hi all,
Ever since upgrading to Linux 6.4 HDMI audio has stopped working for me. I've tried it with the 6.1 LTS kernel and it still works fine, so it's not something else to do with my setup.
I'm using an HP Dragonfly Elite G2 laptop which has an Intel TigerLake SoC and I'm running the stock Arch Linux kernel (v6.4.6).
When I connect to HDMI, either directly via the laptop's HDMI port or indirectly via a USB 4 hub, while the display works fine, no audio will play over HDMI. Sometimes after attempting this, audio *also* stops playing correctly through the laptop's speakers (there's a lot of distortion). Audio works fine with my Bluetooth headphones.
Any ideas? Dmesg output below.
Best to file an issue here: https://github.com/thesofproject/linux/issues
Yes, pleased file an issue in our tracker and please provide the alsa-info and the kernel log with https://thesofproject.github.io/latest/getting_started/intel_debug/suggestio...
Fwiw, I have tried HDMI on my TGL laptop and audio works correctly with: 6.4.6-artix1-1 (basically Arch kernel) sof-firmware 2.2.6-1 also tried with 2:2:0-57864 (which looks like you have) and have not encountered issue. I have used HDMI cable (no display capable USB HUB in use on my desk).
can you downgrade to 6.3 kernel (and perhaps to 6.2 and 6.1 non LTS) to narrow down the possible regression and also try to update sof-firmware to latest?