I have another system that I connect to this TV. It's built around an old Haswell, Z87-chipset desktop motherboard. I installed Linux on it today, to test this, and so far it seems to work fine.
I noticed that the Haswell doesn't even support ASPM; the BIOS either doesn't implement the required ACPI support, or it's disabled in one of the menus. Is that typical of more recent (Skylake and up) desktop boards? In any case, I intend to run this laptop on 5.6.0-1010-oem for the next week or two with pcie_aspm.policy=performance and see if the issue resurfaces. So far, so good. The ASPM policy can also be set at runtime; for example: echo performance | sudo tee /sys/module/pcie_aspm/parameters/policy -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
