Question Odyssey G7 turns on but without a signal and the screen flashes briefly ?


Jan 22, 2010
I recently returned from a two-month trip, during which I had disconnected all my electronics from their power sources. Upon my return, I'm facing some issues with my G7 monitor. When I power it on, it briefly flashes, then the screen remains lit but blank.

Here are the troubleshooting steps I've taken:

  • I've tried using different DisplayPort (DP) cables.
  • I've tested different DP ports on both the GPU and the monitor.
  • I've attempted using an HDMI cable.
  • I've powered off and then completely restarted both the monitor and the system.
Interestingly, my secondary monitor displays an image when connected via HDMI, but not via DisplayPort. This leads me to suspect that there might be two separate issues. The first being that the DisplayPorts on my GPU aren't working and the second being that my G7 monitor might be malfunctioning entirely, as it doesn't even show the OSD menu when connected via HDMI.

I've made a video showing what happens when I power on the monitor here.

I've scoured the internet but had no luck resolving this issue. Thanks in advance for any help.