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HDMI Display Slow to activate after Boot Hero z690

Les_Garten
Level 9
I have a strange problem. I cannot see the post on my monitor. The monitor is an Asus PG32UQ. The MB is a Hero z690. GPU EVGA TitanX Maxwell.

I have a 30' HDMI cable going to HDMI 2 on the monitor. When I boot the MB, the monitor get's probed a few times but never syncs. USB to my KB flashes a few times, The first thing I see is the windows logon screen. Nothing before that.

If I take the PC into my shop and hook up to an older smaller Asus monitor, it works perfectly. That's what I used to install. Works on both IGPU and the Titanx

If I hook back up to the PG32UQ and hook up a TV on Display Port with a HDMI to DP adapter, the DP TV will show the post and I can get into the BIOS as normal. The Asus PG32UQ though still works the same, during the boot, I'll see the post on the TV and nothing on the PG32UQ till thje login screen comes up. Before that though, I see the Blue Window and the swirling dots on the DP TV. If that isn't hooked up, I never see it on the HDMI to the ASUS PG32UQ.

Where to look for this problem.
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