Now I tried your Hdmi.conf. Again, seeing black screen for a couple of reboots. Kept trying -26 v4 kernel. Then maybe the 3rd or 4th time, it booted. Here are more info for this case.
alsa-info: http://alsa- project.org/db/?f=3f409ae3409faaa0a36577e7df1061fb0b9334ac No sound. Seeing Dummy output in pavucontrol. By the way, alsa-mixer seems to select "HDA Nvidia" as the sound card. I don't think that should be the default. inxi -Ax Audio: Device-1: Intel Cannon Lake PCH cAVS vendor: Hewlett-Packard driver: sof-audio-pci bus ID: 00:1f.3 Device-2: NVIDIA TU106 High Definition Audio vendor: Hewlett-Packard driver: snd_hda_intel v: kernel bus ID: 01:00.1 Sound Server: ALSA v: k5.4.0-26-generic Ideally, I think Device-1 above is the one that drives the laptop's speakers? ** Attachment added: "dmesg" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1874698/+attachment/5368231/+files/dmesg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1874698 Title: [OMEN by HP Laptop 15-dh0xxx, Realtek ALC285, Black Mic, Left] Recording problem To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1874698/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
