https://bugs.freedesktop.org/show_bug.cgi?id=109340
Bug ID: 109340
Summary: HDMI output (DisplayPort-0) stops listing modes after
using docking station DP output
Product: DRI
Version: XOrg git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: zaj...@gmail.com
Created attachment 143092
--> https://bugs.freedesktop.org/attachment.cgi?id=143092&action=edit
dmesg
I use following setup:
1) HP EliteBook 745 G5 with Ryzen 5 PRO 2500U
2) Docking station HP HSTNN-I11X
3) Monitor BenQ GW2260 (HDMI and no DisplayPort)
4) openSUSE Tumbleweed
5) Self compiled kernel 4.20-rc3 from amd-staging-drm-next with patches:
drm/amd/display: Include names of all PP clock types
x86/MCE/AMD: Fix the thresholding machinery initialization order
My problem is that I can't use notebook's HDMI port (visible as DisplayPort-0)
after using DisplayPort output of docking station. HDMI detects monitor & gets
EDID but xrandr doesn't list any modes.
After booting without docking station & connecting monitor using HDMI port:
DisplayPort-0 connected (normal left inverted right x axis y axis)
1920x1080 60.00 + 50.00 59.94
1680x1050 59.88
1600x900 60.00
1280x1024 60.02
1440x900 60.00
1280x800 59.91
1280x720 60.00 50.00 59.94
1024x768 60.00
800x600 60.32
720x576 50.00
720x480 60.00 59.94
640x480 60.00 59.94
After connecting docking station & monitor using DP port + HDMI adapter:
[drm] DM_MST: starting TM on aconnector: 00000000651bd996 [id: 57]
[drm] DM_MST: added connector: 00000000e1b7686d [id: 90] [master:
00000000651bd996]
[drm] DM_MST: added connector: 0000000078869ed2 [id: 94] [master:
00000000651bd996]
[drm] DM_MST: added connector: 00000000af4e5879 [id: 98] [master:
00000000651bd996]
[drm] amdgpu_dm_irq_schedule_work FAILED src 8
[drm] amdgpu_dm_irq_schedule_work FAILED src 8
[drm] amdgpu_dm_irq_schedule_work FAILED src 8
After disconnecting monitor & docking station:
[drm] DM_MST: stopping TM on aconnector: 00000000651bd996 [id: 57]
[drm] DM_MST: Disabling connector: 00000000e1b7686d [id: 90] [master:
00000000651bd996]
[drm] DM_MST: Disabling connector: 0000000078869ed2 [id: 94] [master:
00000000651bd996]
[drm] DM_MST: Disabling connector: 00000000af4e5879 [id: 98] [master:
00000000651bd996]
After connecting monitor using HDMI port:
xrandr: Output DisplayPort-0 is not disconnected but has no modes
(...)
DisplayPort-0 connected (normal left inverted right x axis y axis)
It's a bit weird since HDMI port (DisplayPort-0) seems to detect monitor being
connected & can get EDID. Is there some bug with enumerating available models
caused by DM_MST / TM?
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