Takashi Iwai <tiwai@xxxxxxx> さんはかきました: > On Wed, 18 Jan 2023 16:30:53 +0100, > Mike FABIAN wrote: >> >> >> With a Lenovo Thinkpad T14s (Gen1, Intel version), I tried to get sound >> on the monitor speakers via the HDMI cable. >> >> It didn’t work out of the box and after a bit of googling I found: >> >> https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T-series-Laptops/T14s-AMD-no-HDMI-audio-on-Linux/m-p/5081195?page=2 >> >> >> which suggested to put >> >> snd_rn_pci_acp3x.dmic_acpi_check=0 >> >> on the kernel command line. >> >> So I tried this: >> >> $ cat /etc/modprobe.d/lenovot14s.conf >> options snd-rn-pci-acp3x dmic_acpi_check=0 >> >> And that did make it work indeed. >> >> I have no idea what this means and why this makes it work. > > The option basically should influence on the driver's behavior whether > to probe the built-in d-mic or not, and it has no direct relationship > with HDMI (supposedly via HD-audio bus), so it's puzzling how this > fixes the problem. > > Could you run alsa-info.sh (with --no-upload option) on both working > and non-working cases, and attach both outputs for comparison? I removed /etc/modprobe.d/lenovot14s.conf but now it still works ☹ I did a “sudo dnf --enablerepo=updates-testing update” since I last rebooted, so it is possible that an update fixed this. So unfortunately I cannot produce a “alsa-info.sh --no-upload” output for the non-working case anymore (I attached the output for the working case *without* /etc/modprobe.d/lenovot14s.conf (i.e. without snd_rn_pci_acp3x.dmic_acpi_check=0) -- Mike FABIAN <mfabian@xxxxxxxxxx> 睡眠不足はいい仕事の敵だ。
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