[Ubuntu-x-swat] [Bug 1700756] Re: HDMI not working

Still exists in Ubuntu 22.04 with NVidia driver 390.157 DP works HDMI shows as connected, but no output to monitor. HDMI cable works with Mac Monterey but DP does not. Nouveau driver works with both ports but the external display speed is very slow and choppy even if I add PiP and use both

[Ubuntu-x-swat] [Bug 1870597] Re: libinput says: scheduled expiry is in the past... your system is too slow

I have the same sort of issue... Ubuntu 20.04 (Ubuntu Studio spin). >From Xorg.0.log [ 13886.780] (EE) client bug: timer event4 debounce short: scheduled expiry is in the past (-9ms), your system is too slow [ 13926.080] (EE) client bug: timer event4 debounce: scheduled expiry is in the past