[sc:hardware-category ]I’ve been running my 4K monitor for a while now and I connected it through DisplayPort. This was the first time I’ve used DisplayPort (my old monitor was connected through HDMI) and whenever I turned off the monitor all my window positions reset to the top left corner.
This was strange but hunting around the next for a while I found some information that basically indicated it was because Windows treats DisplayPort devices just like any other hot plug device and when you turn off the monitor it effectively “removes” the display from Windows.
Of course this means Windows drops back to its default display driver, which happens to be 1024×768, hence all the windows shrinking to fit in that display size.
Microsoft has a KB on the issue, but in the end the options are basically:
- Live with it
- Let the monitor go to sleep instead of turning it off
- Shutdown the system when you want to turn the monitor off
- Don’t use DisplayPort
At the moment I’ve opted for #2, just letting the display go to sleep which seems to work alright. My only concern is with power outages if I didn’t have the monitor on the a UPS, but I have both the monitor and PC on an UPS so that shouldn’t be a problem.
I may just go back to HDMI, it works fine with 4K displays and doesn’t appear to have the issue.