30 sekunders google søgning senere:
Dell U4919DW monitor is factory defaulted at HDMI EDID with 3 Block (Detailed Timing Descriptor) to support 5120 x 1440 @ 60Hz.
To display a resolution of 3840 x 1080 @ 60Hz or lower, you need to switch the monitor HDMI EDID from 3 Block to 2 Block.
Remove all input cables from the monitorPress and hold
Button 3 and
Button 4 for 5 seconds.
A message box will appear. Select
Enable to switch to lower primary resolution
If you wish to display 5120 x 1440 resolution over HDMI again, you need to switch the monitor back to HDMI EDID 3 Block.
Follow Steps 1 & 2, and Select
Disable
Nu skal jeg ikke kunne sige om det gør forskellen, men det kunne det virkelig godt lyde som :)
Og bare fyi, det her står inde på Dell's hjemmeside under produktet:
https://www.dell.com[...]
Det ville sikkert også stå i manualen du får med.
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