display_rotate=3 black screen

[Nuker]

Hi,
i have XBian_1.0_Beta_1.1, everything works fine, exept if i set display_rotate=3 in config.txt, i can only see xbian loading window, after that it goes black. if i set hdmi_safe=1 then xmbc loads with rotation, but resolution is 640x480, and i cant change it.
Basicaly i need rotation to be 270 degrees, and resolution 1080x1920
i tried adding hdmi_ctv 1080 1920 60, but i'm not sure xbian support it, and it didn't helped me. I read somewhere that rotating 90 or 270 degrees requires more gpu, so added gpu_mem_512=256, still no luck.