CCC and RefreshRate

fuzio · Dec 14, 2004, 07:47 AM

i cant change refresh rate of my monitor to anything beyond 60Hz. It only happens when tv is connected. Reported max resolution is correct but refresh rate is set at 60Hz, changing it wont work, still 60. when i unplug tv evrythings fine (using newest cat 4.12 and ccc). is there any way to do this or this is bug and i have to stay with control panel ?

ww2 · Dec 15, 2004, 09:39 PM

I had the same problem but even with the TV unplugged. Installed the control panel instead of the control center and everything works fine... probably a bug.

The_Neon_Cowboy · Dec 15, 2004, 10:47 PM

I'm not sure but I didn't think you could have seprate resoultions & refresh rates on 1 card....with two displays....

Spyre · Dec 15, 2004, 11:26 PM

The TV has to be 60hz due to it being NTSC but this also locks the Hz of any other monitors connected at the same time

Its either a bug or limitation of the hardware, most likely a limitation of the hardware

cswiger · Dec 16, 2004, 06:11 AM

Quote:

Originally Posted by The_Neon_Cowboy

I'm not sure but I didn't think you could have seprate resoultions & refresh rates on 1 card....with two displays....

You get one resolution per RAMDAC on the video card; x800 cards with, say a DVI and a VGA output will have two 400MHz RAMDACs, each capable of driving a display at it's own seperate refresh rate.

However, the TV-out ends up being generated by one of those two RAMDACs as well, which means that any monitor attached to the same chip will receive the same refresh that the TV-out is getting. Whoever it was asking the original question might be able to enable dual-display mode and see whether you can change the refresh rate of the other display, and/or try switching which connector you use (stick a DVI-to-VGA dongle on if need be)...

--
-Chuck

fuzio · Dec 16, 2004, 02:08 PM

i forgot to say that with control panel evrything is fine, i can have diffrent resolution and refresh rate for tv and monitor, i think this is some bug in ccc so i switch back to cp, mayby next release will work

Dec 14, 2004, 07:47 AM	#1
fuzio DriverHeaven Newbie Join Date: Nov 2004 Posts: 6 Rep Power: 0	CCC and RefreshRate i cant change refresh rate of my monitor to anything beyond 60Hz. It only happens when tv is connected. Reported max resolution is correct but refresh rate is set at 60Hz, changing it wont work, still 60. when i unplug tv evrythings fine (using newest cat 4.12 and ccc). is there any way to do this or this is bug and i have to stay with control panel ?

Dec 15, 2004, 09:39 PM	#2
ww2 DriverHeaven Junior Member Join Date: Nov 2004 Posts: 36 Rep Power: 0	I had the same problem but even with the TV unplugged. Installed the control panel instead of the control center and everything works fine... probably a bug. __________________ Asus Radeon 9600 XT (128 mb) Athlon XP 1800+ (~1.5 ghz) ECS K7S5A revision 3.1 Windows XP Pro with SP2

Dec 15, 2004, 10:47 PM	#3
The_Neon_Cowboy HardwareHeaven Extreme Member Join Date: Dec 2002 Location: U.S.A. Posts: 16,009 Rep Power: 92 System Specs	I'm not sure but I didn't think you could have seprate resoultions & refresh rates on 1 card....with two displays.... __________________

Dec 15, 2004, 11:26 PM	#4
Spyre DriverHeaven Senior Member Join Date: Mar 2003 Location: England Posts: 240 Rep Power: 62	The TV has to be 60hz due to it being NTSC but this also locks the Hz of any other monitors connected at the same time Its either a bug or limitation of the hardware, most likely a limitation of the hardware __________________ ATI Beta Tester game.AMD.Moderator

Dec 16, 2004, 02:08 PM	Thread Starter #6
fuzio DriverHeaven Newbie Join Date: Nov 2004 Posts: 6 Rep Power: 0	i forgot to say that with control panel evrything is fine, i can have diffrent resolution and refresh rate for tv and monitor, i think this is some bug in ccc so i switch back to cp, mayby next release will work