can't get full screeen on benq xl2420t

[Venkat Esh]

i bought benq xl2420t 24" monitor to replace my dell 20" dell monitor.but i got problem with resolution .that i won't full screen on its full resolution(1920*1080).i have tried changing cables that it only works on HDMI and shows no signal detected when connecting DVI CABLE .I am using dell motherboard with 6gb ram and ASUS HD7770 DDR5 graphic card, i3 processor.somebody give me suggestions to get rid of this problem...

 

[scout_03]

did you check your settings and scaling under the ccc control panel .

 

[cookybiscuit]

Are plugging into the GPU's ports and not the motherboards?

 

[Venkat Esh]

Are plugging into the GPU's ports and not the motherboards?

yes i did pluged into gpu only not in mother board

 

[Venkat Esh]

did you check your settings and scaling under the ccc control panel .

yes i did checked but scaling settings in monitors shown in gray color and not working and in system gpu settings i changed it to1028*1024 this setting only got full screen

 

[scout_03]

back in the ccc panel under flat then hdtv you will see personalize and predifine settings check if you see 1080p60 standard (1920x1080 @60 hz add it then apply that should set the monitor to it if it could handle this size .

 

[Venkat Esh]

ya its working but its blinks on top edge some times

 

[scout_03]

then in the flat screen property check the dvi box and the size to panel and scaling by gpu ,does your refresh rate is at 60 hz .