OK, So after diging a bit I found out that the DisplayPort is PnP interface a therefore the behaviour is normal.
I also found out that many monitors have a function called DisplayData Channel Command Interface (DDC/CI) that can be disabled to stop this behaviour.
The LG doesn't seem to have...
What happens to you if you switch-off and then switch-on your monitor while Windows is still running?
In my case it is like if Windows detects a new device (like when you you insert a plug&play device).
Is this a normal behaviour for DP?
It is annoying because if there are open Windows...
WOW!
Brilliant job signal60!!!!
I don't know when mine was manufactured but I am also worried that the same problem reproduces.
Can I ask you where you found the date of manufacturing?
Again, well done!!!!
I believe that if the monitor is not able to automatically set the resolution and you need to do it via a custom resolution it's because something is wrong with the DP cicuit.
The behaviour that you experienced was similar to mine... I trid a different Card, bought a new DP cable... and...
Hi again,
this is the resolution that the LG was able to display. I believe that the DisplayPort circuit was broken as it had no problema with the HDMI.
It started with the issue of the "phantom" resolution 4096x2160 and suddenly one day it was like this 640x480 interlaced. Note that a few...
Hi,
I was the first one complaining of the "lost" 4096x2160 resolution.
The problem was that particular unit.
The day after, with the DD conection (not with the HDMI) resolution was dropped to 640x480 and there was no way of changing it.
I returned it, got a new back, and without doing...
I am on Windows 8.1,, Display port 1.2 is enabled on the OSD and the cable is the one that comes with the monitor (the one I've been using since day one).
I have tried with another DisplayPort calbe (Displayport to Displayport - not mini like the original) and I get the same behaviour.
After...
Hi there,
I just got a new LG 31MU97 monitor a few days ago and today I just experienced a weird behaviour.
I am using an MSI GTX 980 and when I plugged it to the DisplayPort connector it worked like a charm and recognised the display and automaticaly set the resolution to 4096x2160...