Intel® UHD Graphics 620 (WHL GT2) hangs on Joint display switching
I'm using a Lenovo Yoga X390 with external Thunderbolt (HP) dock that has one external display connected via Display Port. For some time this solution was a solid rock but after recent updates, it started to freeze randomly when switching from a single display to double (Joint Displays). Sometimes one display hangs, sometimes both. Also found when switching between windows using Alt+Tab same happens, also randomly (the display that presents the window carousel hangs while other one works). The OS is Ubuntu 19.04: Linux n317-pc01 5.0.0-38-generic #41 (closed)-Ubuntu SMP Tue Dec 3 00:27:35 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux. There are no errors in dmesg however.
Any help is highly appreciated as now every 4-5 boots I experience this issue.