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? -- Earthling Michel Dänzer | https://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
