According to #19, the 4.15.0-50 can work that is because the driver doesn't check the ELD status, that is not correct. The hdmi audio is valid/plugged only if both monitor_present and eld_valid are true, but that is the log from 4.15.0-50: monitor_present 1 eld_valid 0
We did introduce a new patch to check ELD from the 4.15.0-51, because of this patch, the hdmi audio will not be regarded as plugged since eld_valid is 0. The root cause of this problem is the graphic driver amdgpu, so could you please test the latest mainline kernel if it can make both monitor_present and eld_valid true. https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.2-rc6/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1834771 Title: No HDMI-audio after kernel 4.15.-0.50 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834771/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
