Trying to get a GTX 260 to work with a 4k montior

[CK1]

Hi, I recenlty bought a iiyama 4k monitor for my laptop to connect to and it works fine, however i want to try and get my old desktop with an ageing nvidia GTX 260 with two DVI outputs to display to the new monitor. However it wont do so. When it starts up it will display the CMOS output etc and even then the windows logo, but after that it goes blank.

I believe the card is trying to output in a resolution to match the monitor, i.e. 4k but cannot do so. To try and solve this i have borrowed a 1920x1200 screen and plugged this is against the other DVI port, now all is fine as i can extend the display onto the 4k monitor and set it to 1920x1080. Whilst in this dual screen mode all is fine. When I now unplug the second monitor the 4k one goes blank again. I assume it is going back to a resolution it can't handle. I can't see a way of telling it to keep the 1920x1080 resolution, even though it is fine in a dual screen set-up.

Does anyone have any idea on how to fix this?

[ik9000]

Hi, I recenlty bought a iiyama 4k monitor for my laptop to connect to and it works fine, however i want to try and get my old desktop with an ageing nvidia GTX 260 with two DVI outputs to display to the new monitor. However it wont do so. When it starts up it will display the CMOS output etc and even then the windows logo, but after that it goes blank.

I believe the card is trying to output in a resolution to match the monitor, i.e. 4k but cannot do so. To try and solve this i have borrowed a 1920x1200 screen and plugged this is against the other DVI port, now all is fine as i can extend the display onto the 4k monitor and set it to 1920x1080. Whilst in this dual screen mode all is fine. When I now unplug the second monitor the 4k one goes blank again. I assume it is going back to a resolution it can't handle. I can't see a way of telling it to keep the 1920x1080 resolution, even though it is fine in a dual screen set-up.

Does anyone have any idea on how to fix this?

Is there an OSD menu override default resolution and scale the pixels?

[CK1]

no, as soon as i take the cable out for the other monitor the 4k one says no signal and goes into standby. I cannot bring up the OSD

[MrJim]

Deleted post...misread the OP!

[blueball]

Make sure you have a dual-link not a single-link DVI cable. The dual-link is fully populated:

https://www.lindy.co.uk/dvi-guide-co...-explained-i65

Edit: You will need DVI-I not DVI-D to cover 4k resolutions

[CK1]

Make sure you have a dual-link not a single-link DVI cable. The dual-link is fully populated:

https://www.lindy.co.uk/dvi-guide-co...-explained-i65

Edit: You will need DVI-I not DVI-D to cover 4k resolutions

I'm not sure your correct, i think it is a nvidia driver or Windows 10 issue, because when the cable is plugged into the monitor Windows (or the graphics card) picks up that it is plugged into a 4k monitor and changes the resolution to match, however the card cannot display that resolution so the screen goes blank as there is no output.

I have just VNC'd onto the computer from a laptop one, and saw then that the resolution set by the gtx260 was 4k, once i changed it to 1080 it was fine. edssentailly the graphics card is trying to output according to the resolution of the of the monitor but it can't. This is probably down to a bad driver.

[ik9000]

it's not a driver, it's a limitation of the card itself. my gtx460 Max's out at 2550x1260. that is the limit of its spec. and only via one if the connectors IIRC. the other is 1080p. that is all they were designed to output.

[DanceswithUnix]

I presume this card is using legacy drivers, have you installed the latest? I can't imagine Nvidia ever tried plugging that chip into a 4K monitor so I'm not that surprised if the original drivers can't cope. Dual link DVI doesn't go much above 1440p, if you sort that out. I wouldn't have expected the card to even present 4K as an option let alone attempt to display it, so that's a driver fault and probably not one Nvidia are going to put much priority into.

But then the monitor shouldn't report over DVI a speed that DVI can't handle, which makes me think it is actually an HDMI port.

Does the monitor have a VGA input?