On Tue, Mar 5, 2019 at 1:16 PM Paul Menzel pmenzel+amd-gfx@molgen.mpg.de wrote:
Dear Linux folks,
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`).
[ 0.000000] Linux version 4.20.13.mx64.248 (root@holidayincambodia.molgen.mpg.de) (gcc version 7.3.0 (GCC)) #1 SMP Wed Feb 27 14:10:55 CET 2019
[ 79.494297] [drm] DM_MST: stopping TM on aconnector: 00000000a8109331 [id: 56] [ 79.494362] [drm] DM_MST: Disabling connector: 00000000776ea22b [id: 63] [master: 00000000a8109331] [ 79.494406] [drm] DM_MST: Disabling connector: 00000000057ebdbb [id: 67] [master: 00000000a8109331] [ 79.781882] snd_hda_intel 0000:00:1f.3: spurious response 0x0:0x2, last cmd=0x201f0500 [ 86.028806] [drm] DM_MST: starting TM on aconnector: 00000000a8109331 [id: 56] [ 86.053072] [drm] DM_MST: added connector: 000000001c9b49ed [id: 71] [master: 00000000a8109331] [ 86.108540] [drm] SADs count is: -2, don't need to read it [ 86.386661] [drm:create_stream_for_sink [amdgpu]] *ERROR* Failed to create stream for sink! [ 87.237878] [drm] DM_MST: added connector: 00000000c3ffcbbb [id: 80] [master: 00000000a8109331] [ 87.293028] [drm] SADs count is: -2, don't need to read it [ 206.993344] [drm] DM_MST: stopping TM on aconnector: 00000000a8109331 [id: 56] [ 206.993423] [drm] DM_MST: Disabling connector: 000000001c9b49ed [id: 71] [master: 00000000a8109331] [ 206.993456] [drm] DM_MST: Disabling connector: 00000000c3ffcbbb [id: 80] [master: 00000000a8109331] [ 207.548051] [drm:create_stream_for_sink [amdgpu]] *ERROR* Failed to create stream for sink! [ 207.603193] [drm:create_stream_for_sink [amdgpu]] *ERROR* Failed to create stream for sink! [ 207.762388] traps: xfdesktop[2225] general protection fault ip:7f588981226c sp:7ffee65af370 error:0 in libgobject-2.0.so.0.5800.1[7f58897da000+56000] [ 210.320612] [drm] DM_MST: starting TM on aconnector: 00000000b456cd59 [id: 62] [ 210.343497] [drm] DM_MST: added connector: 00000000735839d5 [id: 73] [master: 00000000b456cd59] [ 210.399168] [drm] SADs count is: -2, don't need to read it [ 210.404454] [drm] DM_MST: added connector: 00000000cccb0c2d [id: 88] [master: 00000000b456cd59] [ 210.675589] [drm] SADs count is: -2, don't need to read it
With an Intel system, the monitor object is shown.
$ xrandr --listmonitors Monitors: 1 0: +Auto-Monitor-1 3840/698x2160/392+0+0 DP-1-9 DP-1-8Do you have an idea, what the AMD drivers does differently, and how to fix this?
+ dri-devel
My understanding is that this is handled at the Desktop level rather than the driver. X exposes the tile info via randr 1.5 and the desktop environment should handle it as a single monitor. Mutter handles this in GNOME for example.
https://cgit.freedesktop.org/xorg/xserver/commit/?id=7e1f86d42b54fb7f6492875... https://lists.x.org/archives/xorg-announce/2015-May/002605.html https://mail.gnome.org/archives/desktop-devel-list/2015-November/msg00018.ht...
Alex
Dear Alex,
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`).
[ 0.000000] Linux version 4.20.13.mx64.248 (root@holidayincambodia.molgen.mpg.de) (gcc version 7.3.0 (GCC)) #1 SMP Wed Feb 27 14:10:55 CET 2019
[ 79.494297] [drm] DM_MST: stopping TM on aconnector: 00000000a8109331 [id: 56] [ 79.494362] [drm] DM_MST: Disabling connector: 00000000776ea22b [id: 63] [master: 00000000a8109331] [ 79.494406] [drm] DM_MST: Disabling connector: 00000000057ebdbb [id: 67] [master: 00000000a8109331] [ 79.781882] snd_hda_intel 0000:00:1f.3: spurious response 0x0:0x2, last cmd=0x201f0500 [ 86.028806] [drm] DM_MST: starting TM on aconnector: 00000000a8109331 [id: 56] [ 86.053072] [drm] DM_MST: added connector: 000000001c9b49ed [id: 71] [master: 00000000a8109331] [ 86.108540] [drm] SADs count is: -2, don't need to read it [ 86.386661] [drm:create_stream_for_sink [amdgpu]] *ERROR* Failed to create stream for sink! [ 87.237878] [drm] DM_MST: added connector: 00000000c3ffcbbb [id: 80] [master: 00000000a8109331] [ 87.293028] [drm] SADs count is: -2, don't need to read it [ 206.993344] [drm] DM_MST: stopping TM on aconnector: 00000000a8109331 [id: 56] [ 206.993423] [drm] DM_MST: Disabling connector: 000000001c9b49ed [id: 71] [master: 00000000a8109331] [ 206.993456] [drm] DM_MST: Disabling connector: 00000000c3ffcbbb [id: 80] [master: 00000000a8109331] [ 207.548051] [drm:create_stream_for_sink [amdgpu]] *ERROR* Failed to create stream for sink! [ 207.603193] [drm:create_stream_for_sink [amdgpu]] *ERROR* Failed to create stream for sink! [ 207.762388] traps: xfdesktop[2225] general protection fault ip:7f588981226c sp:7ffee65af370 error:0 in libgobject-2.0.so.0.5800.1[7f58897da000+56000] [ 210.320612] [drm] DM_MST: starting TM on aconnector: 00000000b456cd59 [id: 62] [ 210.343497] [drm] DM_MST: added connector: 00000000735839d5 [id: 73] [master: 00000000b456cd59] [ 210.399168] [drm] SADs count is: -2, don't need to read it [ 210.404454] [drm] DM_MST: added connector: 00000000cccb0c2d [id: 88] [master: 00000000b456cd59] [ 210.675589] [drm] SADs count is: -2, don't need to read it
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.
$ xrandr --listmonitors Monitors: 1 0: +Auto-Monitor-1 3840/698x2160/392+0+0 DP-1-9 DP-1-8Do you have an idea, what the AMD drivers does differently, and how to fix this?
- dri-devel
My understanding is that this is handled at the Desktop level rather than the driver. X exposes the tile info via randr 1.5 and the desktop environment should handle it as a single monitor. Mutter handles this in GNOME for example.
https://cgit.freedesktop.org/xorg/xserver/commit/?id=7e1f86d42b54fb7f6492875... https://lists.x.org/archives/xorg-announce/2015-May/002605.html https://mail.gnome.org/archives/desktop-devel-list/2015-November/msg00018.ht...
As it works with the modesetting driver, it looks to me like Xfce supports it, and it’s a driver issue. The Linux error messages also do not look promising. Any idea, if they are related? Lastly, shouldn’t at least the output of `xrandr` be correct, if everything is set up correctly?
Kind regards,
Paul
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`).
[ 0.000000] Linux version 4.20.13.mx64.248 (root@holidayincambodia.molgen.mpg.de) (gcc version 7.3.0 (GCC)) #1 SMP Wed Feb 27 14:10:55 CET 2019
[ 79.494297] [drm] DM_MST: stopping TM on aconnector: 00000000a8109331 [id: 56] [ 79.494362] [drm] DM_MST: Disabling connector: 00000000776ea22b [id: 63] [master: 00000000a8109331] [ 79.494406] [drm] DM_MST: Disabling connector: 00000000057ebdbb [id: 67] [master: 00000000a8109331] [ 79.781882] snd_hda_intel 0000:00:1f.3: spurious response 0x0:0x2, last cmd=0x201f0500 [ 86.028806] [drm] DM_MST: starting TM on aconnector: 00000000a8109331 [id: 56] [ 86.053072] [drm] DM_MST: added connector: 000000001c9b49ed [id: 71] [master: 00000000a8109331] [ 86.108540] [drm] SADs count is: -2, don't need to read it [ 86.386661] [drm:create_stream_for_sink [amdgpu]] *ERROR* Failed to create stream for sink! [ 87.237878] [drm] DM_MST: added connector: 00000000c3ffcbbb [id: 80] [master: 00000000a8109331] [ 87.293028] [drm] SADs count is: -2, don't need to read it [ 206.993344] [drm] DM_MST: stopping TM on aconnector: 00000000a8109331 [id: 56] [ 206.993423] [drm] DM_MST: Disabling connector: 000000001c9b49ed [id: 71] [master: 00000000a8109331] [ 206.993456] [drm] DM_MST: Disabling connector: 00000000c3ffcbbb [id: 80] [master: 00000000a8109331] [ 207.548051] [drm:create_stream_for_sink [amdgpu]] *ERROR* Failed to create stream for sink! [ 207.603193] [drm:create_stream_for_sink [amdgpu]] *ERROR* Failed to create stream for sink! [ 207.762388] traps: xfdesktop[2225] general protection fault ip:7f588981226c sp:7ffee65af370 error:0 in libgobject-2.0.so.0.5800.1[7f58897da000+56000] [ 210.320612] [drm] DM_MST: starting TM on aconnector: 00000000b456cd59 [id: 62] [ 210.343497] [drm] DM_MST: added connector: 00000000735839d5 [id: 73] [master: 00000000b456cd59] [ 210.399168] [drm] SADs count is: -2, don't need to read it [ 210.404454] [drm] DM_MST: added connector: 00000000cccb0c2d [id: 88] [master: 00000000b456cd59] [ 210.675589] [drm] SADs count is: -2, don't need to read it
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-10Please 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?
dri-devel@lists.freedesktop.org
-
Alex Deucher -
Michel Dänzer -
Paul Menzel