displaylink on ubuntu plucky

[vallezwh]

Not having any luck with external display, also tried the apt
version from synaptics. Install went cleanly in both cases.

-------------- Linux system info ----------------

Distro: Ubuntu
Release: plucky
Kernel: 6.14.0-27-generic

---------------- DisplayLink info ----------------

Driver version: 1.14.10
DisplayLink service status: up and running
EVDI service version: 1.14.10

------------------ Graphics card -----------------

Vendor: xe
Subsystem:
VGA: Intel Corporation Lunar Lake [Intel Arc Graphics 130V / 140V] (rev 04)
VGA (3D):
X11 version: 21.1.16-1ubuntu1.1
X11 configs: /etc/X11/xorg.conf.d/20-displaylink.conf

-------------- DisplayLink xorg.conf -------------

File: /etc/X11/xorg.conf.d/20-displaylink.conf
Contents:
Section "OutputClass"
Identifier "DisplayLink"
MatchDriver "evdi"
Driver "modesetting"
Option "AccelMethod" "none"
EndSection

-------------------- Monitors --------------------

Providers: number : 0

---

[vallezwh]

Looks like the same issue as:

"EVDI DisplayLink Driver Ubuntu 25.04 Scanout Buffer issue" #521 in
DisplayLink/evdi

~dmesg

[ 76.088837] evdi: [E] evdi_painter_grabpix_ioctl:1090 Failed to map scanout buffer
[ 76.091835] evdi: [E] evdi_painter_grabpix_ioctl:1090 Failed to map scanout buffer
[ 76.098932] evdi: [E] evdi_painter_grabpix_ioctl:1090 Failed to map scanout buffer
[ 76.102235] evdi: [E] evdi_painter_grabpix_ioctl:1090 Failed to map scanout buffer
[ 76.105046] evdi: [E] evdi_painter_grabpix_ioctl:1090 Failed to map scanout buffer
[ 76.107189] evdi: [E] evdi_painter_grabpix_ioctl:1090 Failed to map scanout buffer
[ 76.114652] evdi: [E] evdi_painter_grabpix_ioctl:1090 Failed to map scanout buffer