1.4 not working (Ubuntu/Dell D6000)
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I have used previous version of the driver with moderate success (random disconnects, high CPU usage, other than that it was working after I applied a patch fixing the compilation of evdi kernel module).
Unfortunately, I can't make 1.4 working on the very same system. Displays are always black, and xrandr --listproviders / --listmonitors does not show anything about external displays. I have checked everything I can, tried it with various kernel versions, waited for some time, tried disconnecting and reconnecting the dock etc. -- no luck so far. I am seeing other users with similar configurations (Dell D6000 dock and a Dell laptop on a recent Ubuntu) succeeded in making it work. Please help. |
After removing the old and new driver, and reinstalling it from scratch, I now have one monitor working, but not another (I have two identical monitors connected to D6000 dock in the same way). I have checked that it's not the monitor to blame (if I swap the two connectors at the D6000 side, the other monitor lits up).
I noticed that the following happens for one monitor but not the other: [ 3590.453526] evdi: [D] evdi_painter_mode_changed_notify:505 (dev=2) Notifying mode changed: 1600x1200@60; bpp 32; [ 3590.453528] evdi: [D] evdi_painter_mode_changed_notify:506 pixel format 875713112 [ 3590.453542] evdi: [D] evdi_painter_crtc_state_notify:481 (dev=2) Notifying crtc state: 0 [ 3590.453545] evdi: [D] evdi_painter_dpms_notify:468 (dev=2) Notifying dpms mode: 0 [ 3590.553575] evdi: [D] evdi_detect:75 (dev=2) Painter is connected [ 3590.553578] evdi: [D] evdi_painter_get_edid_copy:215 (dev=2) 00 ff ff Again, I tried everything including numerous reboots of every piece of equipment (monitors, laptop, dock), reconnecting the cables, etc. Is there anything I can debug? |
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Second monitor still not working. Here are logs.
In general, DLM 1.4 is an improvement, especially in CPU load -- it no longer hogs CPU for nothing, only when there's activity on the monitor. If I can only have my other monitor working... |
Quote:
TP Carbon with TP Ultra Dock. Only one Monitor is working. Back to 1.3.54 -> everything works nice except CPU usage. JEns |
Is there anything that I can try? I do miss the real estate of my second monitor, and the D6000 dock works like an el cheapo USB hub for now :(
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This is intriguing. A few questions...
Thanks, Michal |
Hi Michał,
Thanks for looking into it. Quote:
Quote:
Quote:
Code:
kir@kd:~$ cat /sys/devices/evdi/count Quote:
Code:
kir@kd:~$ ls -la /dev/dri Quote:
Code:
[ 2943.659412] evdi: [D] add_store:239 Increasing device count to 3 |
Just for the record -- how to uninstall displaylink drivers on Ubuntu.
As root: Code:
systemctl stop dlm |
Status update:
1. I haven't succeeded in making the old driver (1.3.54) work. 2. After reinstalling the new driver (1.4.210), I got zero monitors. I made it working after lots of trial-and-error. The culprit is to boot the machine with dock disconnected, then log in (i.e. start X session for your user), when plug in the dock. This way, both monitors work. It still works with either zero or 1 monitor if I forget to unplug the dock when I'm booting the laptop. But at least I know a workaround. |
I'm having the same issue on a Dell D6000 and a Latitude 7480.
It will disconnect (monitors go black) but the window manager still thinks they are there. I have to disconnect the USB C cable, reconnect, then re-activate the monitors to get display out. Also the instructions posted earlier in this thread to generate output files now 404's. |
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