how to debug the d-bus process launched in my user session?
Hi,
My machine is a Dell Precision 7540 with a Debian Sid and the
following hardware setup:
$ inxi -G
Graphics:
Device-1: Intel CoffeeLake-H GT2 [UHD Graphics 630] driver: i915 v: kernel
Device-2: AMD Lexa XT [Radeon PRO WX 3200] driver: amdgpu v: kernel
Device-3: Sunplus Innovation Integrated_Webcam_HD type: USB
driver: uvcvideo
Display: wayland server: X.Org v: 1.22.1.3 with: Xwayland v: 22.1.3
compositor: gnome-shell v: 42.4 driver: X: loaded: amdgpu,modesetting
unloaded: fbdev,radeon,vesa gpu: i915 resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2) v: 4.6 Mesa
22.2.0-rc2
Since some months ago I have been getting a kind of video reset
(similar to a switch back to tty0) for each first logging in both
using GDM (and GNOME Wayland) or the text console.
I have finally figure out that it is some D-BUS activation effect
because when it is masked using systemctl --user mask dbus.service, I
do not have this effect any more logging into the text console.
What I can see in the syslog is a duplication of some messages like those:.
[ 93.981014] [drm] PCIE GART of 256M enabled (table at 0x000000F400000000).
[ 95.256821] [drm] dce110_edp_wait_for_hpd_ready: wait timed out!
[ 95.856823] [drm] dce110_edp_wait_for_hpd_ready: wait timed out!
[ 95.884580] [drm] UVD and UVD ENC initialized successfully.
[ 95.984602] [drm] VCE initialized successfully.
[ 95.991324] amdgpu 0000:01:00.0: [drm] Cannot find any crtc or sizes
[ 95.991339] amdgpu 0000:01:00.0: [drm] Cannot find any crtc or sizes
[ 96.380616] i915 0000:00:02.0: [drm] *ERROR* Failed to probe lspcon
[ 96.380619] i915 0000:00:02.0: [drm] *ERROR* LSPCON init failed on port D
[ 97.035882] i915 0000:00:02.0: [drm] *ERROR* Failed to probe lspcon
[ 97.035886] i915 0000:00:02.0: [drm] *ERROR* LSPCON init failed on port D
[ 104.318401] rfkill: input handler enabled
How can I dig into this?
Thanks,
Patrice
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