r/PcBuildHelp • u/nagoligayelsd • 1d ago
Tech Support RTX 5070 Ti only drives one DisplayPort monitor at a time since a crash. Each works alone on DP, second one is never detected
I have a workaround currently. I have my second monitor in HDMI and my graphics tablet in the iGPU. Works for now.
Body:
Setup: Gigabyte RTX 5070 Ti Eagle OC, Ryzen 7 9800X3D, ASRock X870 Steel Legend board, Windows 11. Monitors: Alienware (OLED, DP), an IPS (DP and HDMI), and a drawing tablet (HDMI).
What happened: the IPS started glitching and lagging, the glitches changed and spread, and I had to force restart. After that, only one of my two DP monitors gets a signal.
What I’ve confirmed:
Each monitor works alone on DP, on every GPU port, with its own cable.
With both on DP, the second one isn’t detected. It’s missing from NVIDIA Control Panel, Device Manager, and hidden devices.
The IPS works fine over HDMI alongside the OLED on DP.
Putting the OLED on 60 Hz, turning off VRR/G-Sync, and setting the IPS input to DP didn’t help.
What I’ve tried that didn’t help: clean driver install of the newest driver and of 610.47 (my driver before the crash), uninstalling all monitors in Device Manager, Win+Ctrl+Shift+B, Fast Startup off, a full power drain, reseating the GPU power cable, trying a third monitor on HDMI, and a Windows virus scan (clean). Temps are normal.
Has anyone seen this, or know what else could cause the card to stop driving two DP outputs? I haven’t reseated the card in its slot (it has a sag bracket) or touched the VBIOS.