On 2019-03-08 4:11 a.m., Michel Dänzer wrote: > On 2019-03-06 5:35 p.m., Paul Menzel wrote: >> On 03/06/19 15:55, Michel Dänzer wrote: >>> On 2019-03-06 1:41 p.m., Paul Menzel wrote: >>>> On 03/05/19 20:07, Alex Deucher wrote: >>>>> On Tue, Mar 5, 2019 at 1:16 PM Paul Menzel wrote: >>>> >>>>>> Using the MST display Dell UP3214Q (two panels) with an AMD system, >>>>>> the virtual monitor object is not created. GDM and Xfce consider both >>>>>> panels as separate screens (`xrandr --listmonitors`). >>>>>> >>>>>> [...] >>>> >>>> I didn’t provide the output of xrandr in my previous message. >>>> >>>> $ xrandr --listmonitors >>>> Monitors: 2 >>>> 0: +DisplayPort-9 1920/698x2160/392+0+0 DisplayPort-9 >>>> 1: +DisplayPort-10 1920/698x2160/392+1920+0 DisplayPort-10 >>>> >>>> Please find the X.Org X Server log attached. >>>> >>>>>> With an Intel system, the monitor object is shown. >>>> >>>> To clarify, the modesetting driver is used with the Intel hardware. >>> >>> Does this work better with the modesetting driver on the AMD system? >> >> With Linux 4.19.19, there was the same problem with the modesetting driver >> during my limited testing. >> >> Updating to Linux 4.20.13, it worked with the modesetting driver, but the >> AMDGPU driver still failed to properly utilize the MST monitor. > > Does > https://gitlab.freedesktop.org/xorg/driver/xf86-video-amdgpu/merge_requests/32 > help? > Michel, do you know if this is supposed to work with xf86-video-amdgpu? When I've tried it before I didn't have any luck but didn't have time to look into it. Harry > _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
