@Rudi My BIOS doesn't have options for controlling nVidia GPU and Intel iGPU.
When I bought this laptop I thought I would be using Intel iGPU only and was shocked to learn there was no HDMI screen until nVidia drivers were installed. It took me about a month to figure that out. Then a couple of days with this sound issue that you solved. Thanks again! I'm not sure how to have nVidia take control of built-in display and Thuderbolt3 display which "I think" Intel iGPU is controlling now. The screen flickering during boot (and the extra couple of seconds too) is not a big deal for me. Now I'm more concerned about the 20-40 pixel underscan nVidia GTX970M pumps out over Linux that doesn't happen in Windows 10. Also the soft to loud fluctuating sound levels when ThunderBolt3 HDMI sound is used to second TV (haven't checked that in Windows 10 yet which if same means its the adapter). Then I have dozens of bash scripts to upgrade to Windows Subsystem of Linux which requires PowerShell instead of linux kernel commands. Also `gedit` and `nautilus` need "tweaking" when running under xfce4, VcXsrv, WSL and Windows 10, etc., etc. So yeah... plate is kind of full. I've already saved 10 seconds in BIOS POST reconfiguring so I'll live with extra 2 seconds of Ubuntu post-grub boot screen flickering... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1377653 Title: HDMI sound output not detected / NVIDIA optimus laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1377653/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
