I just received several Dell Optiplex 5090 PCs which have two
Display Ports and several SB220Q monitors to go along. Because the
monitors only have VGA and HDMI, I got several Display Port > HDMI
cables for each PC. What I found is that if I restart the PC, the
monitors wake normally. However if I shut down the PC and turn it back
on the monitors will not wake. All Windows Updates have been
completed. I've also run through all of Dell's driver updates
(including BIOS) and even installed the Acer specific driver in Windows
for the monitors but it still will not work. I have to unplug the
display port cable and plug it back in for both before it works. On the
monitors I tried turning off the source auto detect and set them only
to HDMI but that still didn't help.
only way I can get them to work is by using a separate display port >
HDMI adapter then use an HDMI cable to the monitor.
Any idea why this wouldn't work and how to fix it?