Inverted Duplicated Display Under Windows 7
 

I am testing with a Fujitsu T730 Tablet PC and an Atlona AT-HDAiR PC to TV converter that connects via HDMI connection between Tablet (LCD Display) and AT-HDAiR base unit, which in turn connects to a duplicated (mirrored) external monitor (Monitor Display).

Under Windows XP, DisplayLink permits rotating the LCD display independent of the Monitor display. Under Win 7, DisplayLink brings up a Win 7 control, which rotates the LCD and Monitor displays together. In Landscape Mode, one is always flipped 180 degrees relative to the other.

Without the kind of control that DisplayLink provides under Win XP, we will not be able to use the Atlona AT-HDAiR device. Fujitsu engineers claim that the DisplayLink software will prevent successful operation of the AT-HDAiR device on any Tablet PC running under Win 7 and using Intel Graphics.

NOTE: ABOVE CONTAINS INACCURACIES. ORIGINAL IS LEFT THE WAY IT WAS, BUT CORRECTIONS ARE GIVEN IN NEXT POSTING BELOW.

In the first posting above, I mistakenly said "connects via HDMI connection" instead of "connects via wireless USB connection." What is actually happening is an HDMI signal is wirelessly transmitted between two Atlona USB dongles from Fujitsu PC to Atlona base unit, which is then connected to a duplicated (mirrored) external monitor via an HDMI cable.

With the Fujitsu T730 Tablet PC in Tablet PC mode, the Tablet LCD display and the external monitor display have images that are rotated 180 degrees relative to each other. The Windows 7 rotation facility rotates both together, so one of the two displays must always be viewed upside down.

The wireless USB connection is not the problem because the wireless dongles can be replaced by a direct USB cable connection between Fujitsu T730 Tablet PC and Atlona base unit and the same problem is still there.

The problem occurs only while running under Windows 7 because under Windows XP DisplayLink is able to rotate the LCD display independent of the external monitor display.