I’ve been using Manjaro for several years, and finally got around to wiping my laptop clean and starting with a fresh install. I did this because I originally used Gnome for years and around the beginning of the year, I switched to KDE by installing it within the existing install. It’s been working fine, but every once in a while, I’d have odd errors or app crash and startup would show problems with the disk / ext4 corruption. Figured, let’s just start clean, restore my files, and start anew.
I’m running a Thinkpad P52s connected to a Thinkpad dock (Thunderbolt 3 Dock Gen 2; DK1841). The dock supports 2 HDMI or 2 DisplayPort connections - I’m using the two HDMI ports.
Previously, this worked flawlessly. I connected the laptop to the dock, closed the lid, and I would get two monitors working correctly. Open the lid, only the laptop’s built-in display would work.
After the fresh install, I can’t get more than one monitor working. With both plugged into the dock, laptop’s built-in screen freezes and only one monitor works. The message at the top of the display configuration says that all monitors are disabled; enable at least one. If I move my mouse to the far upper-left, it will show the contents of all the windows for a brief moment, then the mouse freezes. Keep wiggling it, it will stutter.
Here’s what I’ve found through troubleshooting it:
-
Connected to the dock, two HDMI monitors connected:
First monitor activates.
Second monitor is off.
Built-in display is frozen. -
Connected to the dock, one HDMI monitor connected:
External monitor activates.
Built-in display operates normally. All is well. -
Connected to the dock, one HDMI monitor connected to the HDMI output on laptop, only.
External monitor activates.
Built-in display operates normally. All is wel. -
Connected to the dock, one HDMI monitor connected to the HDMI output of laptop, other HDMI connected to Dock:
(Same as the first entry above)
First monitor activates (one connected to the HDMI output on side of laptop).
Second monitor is off.
Built-in display is frozen.
I’ve tried different versions of the Linux Kernal, and a few trial and errors with the Nvidia driver, to no avail.
CPU:
Info: quad core model: Intel Core i7-8650U bits: 64 type: MT MCP cache:
L2: 1024 KiB
Speed (MHz): avg: 2601 min/max: 400/4200 cores: 1: 2601 2: 2601 3: 2601
4: 2601 5: 2601 6: 2601 7: 2601 8: 2601
Graphics:
Device-1: Intel Kaby Lake-R GT2 [UHD Graphics 620] driver: i915 v: kernel
Device-2: NVIDIA GP108GLM [Quadro P500 Mobile] driver: nouveau v: kernel
Device-3: Chicony Integrated Camera (1280x720@30) driver: uvcvideo
type: USB
Display: wayland server: X.org v: 1.21.1.24 with: Xwayland v: 24.1.13
compositor: kwin_wayland driver: X: loaded: modesetting dri: iris,nouveau
gpu: i915 resolution: 1920x1080~60Hz
API: EGL v: 1.5 drivers: iris,nouveau,swrast
platforms: gbm,wayland,x11,surfaceless,device
API: OpenGL v: 4.6 compat-v: 4.3 vendor: intel mesa v: 26.1.4-arch1.1
renderer: Mesa Intel UHD Graphics 620 (KBL GT2)
API: Vulkan v: 1.4.350 drivers: intel,nvk surfaces: N/A
Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
de: kscreen-console,kscreen-doctor wl: wayland-info
x11: xdpyinfo, xprop, xrandr
The dock has a 135W power supply. Again, this worked before and has for at least the last six years.
Anyone have any suggestions? This screams to me that it’s a video driver issue, but not sure where to look to continue troubleshooting.
