[Touch-packages] [Bug 1725455] Re: Login screen invisible / UI hanging when both 4K monitors connected via Displayport MST (docking station)

** Summary changed: - UI login invisible / UI hanging when Dual 4K monitor via Displayport MST is connected (Lenovo Ultra Dock) + Login screen invisible / UI hanging when both 4K monitors connected via Displayport MST (docking station) -- You received this bug notification because you are a

[Touch-packages] [Bug 1725455] Re: UI login invisible / UI hanging when Dual 4K monitor via Displayport MST is connected (Lenovo Ultra Dock)

Update: I did a full 17.10 reinstall as last attempt. I can confirm the following symptoms: - When both 4k displays are connected to the docking (displayport MST), UI login screen is already hanging (see earlier screenshot) - When 1 x 4K display is connected it works. When connecting 2nd

[Touch-packages] [Bug 1725455] Re: Dual 4K monitor via Displayport MST not working (Lenovo Ultra Dock)

** Tags added: displayport multimonitor -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1725455 Title: Dual 4K monitor via Displayport MST not working (Lenovo Ultra Dock)

[Touch-packages] [Bug 1725455] [NEW] Dual 4K monitor via Displayport MST not working (Lenovo Ultra Dock)

Public bug reported: I am experiencing serious issues after upgrading to Ubuntu 17.10 (coming from 17.04 with Gnome, kernel 4.13). I have 2 x 4K (Asus PB279Q) monitors, connected to a Lenovo Ultra Dock (containing 2 x Displayport via MST), where the Lenovo T550 is connected onto it. Both