DisplayLink Linux and double Login

On my Lenovo laptop a DisplayLink is connected to the I 2 monitors run. Under Linux 2 Packages needed (Arch: displaylink, house)

After installation, I could as desired 2 operate displays, However, I had the login screen always 2 login times. To avoid the application doppolte, must be disabled page_flip. To do this creates following file

/etc/X11/xorg.conf.d/20-displaylink.conf

with folgendemm Content:

Section "OutputClass"
    Identifier  "DisplayLink"
    match Driver "house"
    Driver      "modesetting"
    Option      "AccelMethod" "none"
    Option	"PageFlip" "false"
EndSection