Back again. Sorry for the delay but my system was completely screwed up from loading all the kernels.
At the end Grub-Customizer and the Kubuntu Boot Menu showed two different listings. After much cleaning up, I did finally load 5.11.0-20 but nothing worked. I even lost my networking. Sometime during this mess uname -r reported 5.11.0-20 as the running kernel. I used the $dmesg < dmesg.txt and again the file was empty. I am down to the default kernel 5.8 so I can try something else. That is if you have something else? Thank You -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1931756 Title: [XPS 17 9700, Intel Kabylake HDMI, Digital Out, HDMI] Playback problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1931756/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs