The issue:
no DP signal to either of my two monitors.
Some background:
bought a new monitor stand yesterday, after disconnecting monitors from previous stand, and reconnecting after mounting to new stand, displayports get no signal on both my monitors.
HDMI works fine (on the one monitor that has an hdmi port). Monitors are PG278Q and PG278QR both 1440p.
Some insights from debugging:
- This isnt a cable issue as i've tested several cables and got the same results. Also, the ROG bootup screen shows up fine over DP, but as soon as it transitions to the Windows login screen, the signal is lost.
- DP Works fine in windows safe mode.
- Not a gpu problem, replicated the issue with an older GPU. (also everything worked fine two days ago before i disconnected the monitors)
Tested (failed) solutions:
- Unplugging monitors and PC from power, waiting 5 minutes and replugging.
- Deleting windows display cache (the registry entries from this guide).
- Removing nvidia drivers completely and clean re-installing. When drivers are uninstalled, DP works, but as soon as the driver re-installation is complete, the signal is lost again. this leads me to believe this is the source of the issue.
- Fresh installing older nvidia drivers.
- Resetting windows through pc reset.
PC specs:
win 11
rtx 3070
asus rog maximus x hero MB
corsair hx1000i psu
any help or insights would be greatly appreciated.
no DP signal to either of my two monitors.
Some background:
bought a new monitor stand yesterday, after disconnecting monitors from previous stand, and reconnecting after mounting to new stand, displayports get no signal on both my monitors.
HDMI works fine (on the one monitor that has an hdmi port). Monitors are PG278Q and PG278QR both 1440p.
Some insights from debugging:
- This isnt a cable issue as i've tested several cables and got the same results. Also, the ROG bootup screen shows up fine over DP, but as soon as it transitions to the Windows login screen, the signal is lost.
- DP Works fine in windows safe mode.
- Not a gpu problem, replicated the issue with an older GPU. (also everything worked fine two days ago before i disconnected the monitors)
Tested (failed) solutions:
- Unplugging monitors and PC from power, waiting 5 minutes and replugging.
- Deleting windows display cache (the registry entries from this guide).
- Removing nvidia drivers completely and clean re-installing. When drivers are uninstalled, DP works, but as soon as the driver re-installation is complete, the signal is lost again. this leads me to believe this is the source of the issue.
- Fresh installing older nvidia drivers.
- Resetting windows through pc reset.
PC specs:
win 11
rtx 3070
asus rog maximus x hero MB
corsair hx1000i psu
any help or insights would be greatly appreciated.
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