Rotation working on DL-4300 USB3.0

[Conassa]

Stefan, awesome, thanks for this. Rotation works fine on my Intel HD4000.

I have reduced your xorg config to this:

Section "Device"
  Identifier  "intel"
  Option      "kmsdev" "/dev/dri/card0"
  Option      "PageFlip" "off"
EndSection

Section "Device"
  Identifier  "USB3"
  BusID       "USB"
  Driver      "modesetting"
  Option      "kmsdev" "/dev/dri/card1"
  Option      "PageFlip" "off"
EndSection

I'm also using the new driver - and glxgears seems synced with the DisplayLink monitor's refresh rate. However for it to draw properly I had to use:
compton --glx-use-copysubbuffermesa --glx-no-rebind-pixmap
(I'm using compton with openbox)

My only complain is CPU usage. With glxgears running I get 40% usage on one core... is this normal?

taiki - try removing the RandRRotation and rotate options. It rotates fine for me without those.

[Eevey]

Thanks for the information and research, rotation works like a charm here as well, after some fiddling! (Gnome Shell on Antergos/Arch Linux)

I have an Asus MB169B+ that I bought without properly researching whether screen rotation would work on Linux, and was quite shocked to find that it didn't out of the box. I tried a number of variations, based on the experience of the other people in this thread, and found that it didn't really work properly without having all the lines:

Section "Device"
  Identifier  "intel"
  Driver      "modesetting"
  Option      "kmsdev" "/dev/dri/card0"
  Option      "PageFlip" "off"
  Option      "SWCursor" "on"
  Option      "ShadowFB" "true"
EndSection

Section "Device"
  Identifier  "USB3"
  BusID       "USB"
  Driver      "modesetting"
  Option      "kmsdev" "/dev/dri/card1"
  Option      "PageFlip" "off"
  Option      "SWCursor" "on"
  Option      "ShadowFB" "true"
EndSection

On a side-note: the SWCursor option significantly reduces mouse flickering for me, though it's not completely gone.

Also really hope Wayland will be supported soon and screen rotation will just work out of the box there. :-)

[ArcturusB]

It took me a while to get rotation to work with my Asus MB16A display, so I figured I’d post something in case it helps other users.

The solution posted by Eevey (almost 4 years ago!) for their Asus MB169B+ also works with the MB16A on Arch Linux.