Arch Linux

Arkaid

Member

Registered: 2015-09-20

Posts: 5

DisplayLink USB Monitor Display Problem

I have a bit of an issue with an old DisplayLink USB display. I've followed this wiki:

https://wiki.archlinux.org/index.php/DisplayLink

for USB-2.0 devices. When I don't blacklist udlfb, it appears by name and model in dmesg, but I have no framebuffer in /dev/. Blacklisting and only using udl appears detected as a generic device on dmesg, like this:

[    2.648100] udl 3-4:1.0: fb1: udldrmfb frame buffer device
[    2.648103] [drm] Initialized udl on minor 1

and I get a framebuffer in /dev/fb1. I also get xrandr to show it when calling

$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x47 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 4 outputs: 4 associated providers: 1 name:Intel
Provider 1: id: 0x137 cap: 0x2, Sink Output crtcs: 1 outputs: 1 associated providers: 1 name:modesetting

xfce shows it in "Display" but even after turning it on with "Use this display", it's just stays a black screen.

Any ideas on how to proceed would be greatly appreciated