ArchLinux + DisplayLink with USB3.0 monitor: Red, Green, Blue screen, in sequence

linuxyz · 01-12-2016, 06:59 AM

I've followed the ArchLinux wiki to install the new DisplayLink driver for my AOC 1659 USB 3.0 external monitor https://wiki.archlinux.org/index.php...L-3x00_Devices.

I get a connected "DVI-I-1" external monitor :

Code:

$ xrandr --current
Screen 0: minimum 320 x 200, current 2966 x 900, maximum 16384 x 16384
eDP connected 1600x900+0+0 (normal left inverted right x axis y axis) 388mm x 219mm
   1600x900      60.01*+
...
DVI-I-1 connected 1366x768+1600+0 (normal left inverted right x axis y axis) 344mm x 193mm
   1366x768      60.00*+
..

DisplayLink is loaded:

Code:

$ systemctl status displaylink.service
● displaylink.service - DisplayLink Manager Service
   Loaded: loaded (/usr/lib/systemd/system/displaylink.service; enabled; vendor preset: disabled)
   Active: active (running) since Mon 2016-01-04 13:40:56 CET; 3h 35min ago
  Process: 1533 ExecStartPre=/sbin/modprobe evdi (code=exited, status=0/SUCCESS)
 Main PID: 1536 (DisplayLinkMana)
    Tasks: 25 (limit: 512)
   CGroup: /system.slice/displaylink.service
           └─1536 /usr/lib/displaylink/DisplayLinkManager

as well as udl:

Code:

$ lsmod|grep udl
udl                    28672  0
drm_kms_helper        102400  3 udl,evdi,radeon
drm                   286720  15 udl,ttm,evdi,drm_kms_helper,radeon
usbcore               196608  13 udl,ath3k,btusb,uvcvideo,ohci_hcd,ohci_pci,ehci_hcd,ehci_pci,usbhid,xhci_hcd,xhci_pci

But, when I do:

Code:

$ xrandr --auto --output DVI-I-1 --mode 1366x768 --right-of eDP

or using the GUI in LXDE (where I can see my external monitor is detected and I can select this), the screen turns on, but displays in sequence a Red, a Green, then a Blue screen, in sequence.

my dmesg:

Code:

[12631.137748] [D] evdi_detect (dev=1) Painter is connected
[12631.137769] [D] evdi_painter_get_edid (dev=1) 00 ff ff
[12631.167666] [D] evdi_painter_mode_changed_notify (dev=1) Notifying mode changed: 1366x768@60; bpp 32; pixel format 875713112
[12631.167742] [D] evdi_painter_crtc_state_notify (dev=1) Notifying crtc state: 1
[12631.167750] [D] evdi_painter_dpms_notify (dev=1) Notifying dpms mode: 0

Any ideas?

Thanks a lot!