Can you please install latest drm-tip kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/current/
Then boot with kernel parameter "drm.debug=0xe log_buf_len=16M", reproduce both good and failed case, and attach dmesg here? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1879401 Title: [XPS 13 7390 2-in-1, Intel Icelake HDMI, Digital Out, HDMI] sound rarely works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1879401/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
