For 2nd and 3rd Generation Intel® Core™ Processors the maximum supported resolutions are:
DisplayPort 1.1 = 2560x1600 at 60 Hz
HDMI 1.4 = 1920x1200 at 60 Hz
DVI (Single-link) = 1920x1200 at 60 Hz
VGA = 2048x1536 at 75 Hz
https://www.intel.com/content/www/us/en/support/articles/000023781/graphics-drivers.html
grafiku odpojit můžu ale 4k monitor nemám.