Difficulty getting screen set up, with workaround
I use a Dell XPS13 2015 with a Dell 4-in-1 adapter and a screen connected via HDMI. I have the DisplayLink driver installed on Ubuntu 14.04, as instructed.
This sequence is typical of my start-up routine:
1. After boot my monitor gets a display signal, but the screen is dark and apparently disabled.
2. I log in, disconnect the HDMI cable from my adapter, and plug it back in. Now the monitor is activated but shows a glitched desktop, which continues to accrue visual artifacts as I move windows.
3. I open Ubuntu's display settings screen and set the display to a lower resolution. This makes the screen flicker and pops up a box with the choice to "Keep this configuration" or "Return to last configuration," and I choose to return to the last.
4. The screen again flickers, this time returning to a display with no glitches. This is the desired behavior from the outset.
I put my dmesg and the contents of /var/log/displaylink in a zip file for you. Please let me know anything else I can do to help you debug this.
|