DPI is not changing on Asus Infinity Pad TF700T with 12.04

[snakerock]

Hello.

I have installed Ubuntu 12.04 (Unity version) to my Asus Infinity Pad TF700T from this forum http://forum.xda-developers.com/show...php?p=34027577
Everything works fine, but I can`t manage Ubuntu to use 220 dpi instead of default 96 dpi - interface elements are too small.

I have tried several solutions:

1. Increasing font scaling in environment configuration, but it only enlarges text, not controls.
2. Calling "xrandr --dpi 220". System stores current dpi value as 220, but nothing changes. Seems like Ubuntu doesn`t recognize my real screen size as calling after "xrandr -q" I get "0 mm x 0 mm" size.
3. Editing Xorg.conf. Default and edited versions of Xorg.conf are attached, as well as Xorg.log

Could anybody help me with that? I will provided additional needed information.