Comment 5 for bug 438000

Hi, i have ubuntu 9.10, intel 945gm express family video card etc...
i was trying somehow to setup dual monotors but always with problems like.. on both monitors black screen and with freez..
then i red somewhere that the default virtual screen is movin around 2000x2000
i got internal 1280x800 lcd on my notebook and external lcd has 1920x1080... i installed ArandR and i saw that my virtual screen is set to 1920x1080, so its same as my actual output on external monitor (1920x1080) So a set my internal lcd to 1024x768 and my external lcd to 832x624 so they both could fit to virtual screen size 1920x1080... and voila... my dual monitor set up works...
except one problem... small not native resolutions...
and second thing... i am able to use native resolutions (1280x800 and 1920x1080) on both monitors in dual monitors setup but one of them must be above the other. its wierd. Its like the virtual screen resolution needs to change x and y axis..
in my case from 1880x1920 (works,one above the other) to 3200x1080 (one to the left/right the other)
I dont know what to do about that, thats why i posted this..maybe it helps, may be not, iam not even sure if it fits to this bug u r discusing about... but could u plz at least tell me why this is happening and how could i repair it? thx