Had a weird issue occur today where booting into Windows XP resulted in no image displayed in the monitor. Initially the BIOS image and startup screen for Windows XP displayed fine. But the moment things switched to the Windows XP deskop, the monitor displayed a "no signal" message.

I am using an odd video connection setup. The GPU is connected via a Startech Active Displayport -> HDMI connector, which connects to an HDMI cable which connects to the monitor. The reason for this was to enable both a 75Hz refresh rate (which the monitor natively supports) and automatic aspect ratio switching between 16:10 and 4:3. Previously using either just HDMI or Displayport would fail to enable both of these features at the same time.

I tried removing the adapter and connecting directly to HDMI. This worked and the Windows XP desktop was now visible, albeit at only 60 Hz. But reconnecting the adapter once again produced a "no signal" on the monitor.

I tried removing and reconnecting everything, trying a couple different Displayport sockets on the GPU. Also tried setting things to different (lower) screen resolutions. Even booting in safe mode failed to display an image with the adapter, despite the BIOS and Windows XP start up screens still showing an image prior to reaching the desktop.

I was finally ready to give up after shutting everything down, but booted it up once more... and suddenly the adapter-with-HDMI cable was working again. Once again I could set 75Hz display. I tried out a number of games and confirmed that aspect ratio switching was also working properly.

I have no idea what happened. Could the adapter or cable potentially be failing in some way?

Shponglefan wrote on Yesterday, 22:39:

I am using an odd video connection setup. The GPU is connected via a Startech Active Displayport -> HDMI connector, which connects to an HDMI cable which connects to the monitor. The reason for this was to enable both a 75Hz refresh rate (which the monitor natively supports) and automatic aspect ratio switching between 16:10 and 4:3. Previously using either just HDMI or Displayport would fail to enable both of these features at the same time.

Don't think you need an adapter for that. I'm using a simple DisplayPort cable to connect my GTX 970 to the ProArt, and it scales 4:3 resolutions correctly. Also, I can select 75Hz for 1920x1200 just fine.

Things that might be relevant: I'm using Nvidia drivers 355.98 (modded) and a modified driver for the ProArt as described here.

Joseph_Joestar wrote on Today, 04:24:

Don't think you need an adapter for that. I'm using a simple DisplayPort cable to connect my GTX 970 to the ProArt, and it scales 4:3 resolutions correctly. Also, I can select 75Hz for 1920x1200 just fine.

When I was originally setting things up, this was the only configuration I could get to work properly. I suspect it’s partially because the ProArt monitor is being detected as a television by Windows XP.

Things that might be relevant: I'm using Nvidia drivers 355.98 (modded) and a modified driver for the ProArt as described here.

I need to try the modified INF for the monitor and see if that works. It would be good to have the monitor properly recognized by XP.

Don’t remember which nVidia driver version I’m on, I’ll have to double check that.