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2 Monitor problem, Displayport as no signlal untill windows boots

MRBULL
Level 10
Im running 2 monitors , First one set as Primary Asus VG248 144 hz Monitor on Displayport
Second monitor is Pa248Q ips monitor plugged in HDMI.
each time I restart the computer I have no signal on my primary monitor being displayport , when the pc reboots I only see the post on my second monitor "HDMI" so to be able to acsess Bios for example is only possible on secondary monitor , the primary monitor only opens once the windows as loaded to desktop ..

if I disconnect the secondary monitor "HDMI" then my displayport is fine , after a shutdown I plugged in the HDMI" second monitor" after booting back up , both monitors works correctly until my next reboot then displayport no longer works until windows is totally loaded..

multiple people have problems like this on other forums , some using DVI + displayport others using VGA+ displayport



this is not an issue with Nvidia, but it is property of the graphic card.
When a card is manufactured each port will be named and a priority is set. These priority is set by the manufacturers.
it usually would be this way
1: DVI
2 : display port
3 : HDMI
4 : other port

The bios will first try to pass the signal to port which is of first priority. if there is no monitor connected to that then it is passed to second display

so to have this fixed
We need to change the vbios priority which only the manufacturer can !!


;(
9,191 Views
1 REPLY 1

HiVizMan
Level 40
Well reasoned and well presented. I will pass this on to the guys upstairs and see what unfolds. Thanks mate.
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