Samsung SyncMaster 943NWX resolution problem ATI

[ronaksworld]

Hey,
I have ASUS M3A78-EM motherboard and AMD Phenom x4
with onboard ATI Raideon HD 3200 Graphic,

suddenly after i reinstalled Windows 7 Ultimate v6.1 (build 7601: Service Pack 1)


1440*900 high resolution.I also know that it must have that much max resolution,thats why i bought this monitor.But the problem is that in desktop->setting.There is not any 1440*900 resolution to select.

First there was resolutions 1440*900 resolution to select but now i don't see that option and all the resolution given doesn't fits the monitor

So can anyone tell me whats going on? I search the net for this problem but has no luck and i ended-up here https://www.techspot.com/vb/topic111502.html
the person in the above given link found the solution for intel based, but i had no luck finding it for mine,

Please help me to solve this issue.

 

[ComputerGuy55]

I'm not super familiar with ATI graphics settings, but I had a similar issue with my nVidia 560TI, my monitor was 1080 x 1920 capable, but I could not select the resolution. In my nVidia graphics settings (in the control panel) i had to change the aspect ratio. For some reason it was set to something like 4:3, after changing the aspect ratio to 16:9 I was allowed the 1080 x 1920 reslotion.

Check in your ATI settings (Catalyst Control Center) for the settings to either change the aspect ratio, play around with the settings a bit and see what happens.

 

[ronaksworld]

the monitor is non-PNP, anyways I fixed it by going into the registry and adding a resolution

for future reference:
in CCC go to software
note down the registry path for the 2D driver
open regedit with admin rights
go to registry path
find entry "DALNonStandardModesBCD1" (BCD1 means monitor 1, BCD2 is monitor 2 etc.)
right click on it and select modify
in a new line type in
14 40 09 00 00 00 00 60
(1440 x 900 x 60Hz)

another eg.
19 20 10 80 00 00 00 120
(1920 x 1080 x 120Hz)

now go to device manager
disable the display adapter device
now reenable (disabling and reenabling the device removes the need to reboot)
now go to CCC->desktop management-> advanced display settings
select your resolution
have fun!!!

This is just a temporary fix I had let me know if it works for you, as after few moths the screen resolution got messed up again