I have a computer Dell OptiPlex7010SFF
Core i5-3570 3.4GHz Win10Pro 64bit HD Graphics 2500
However, when UHD (3840x2160) monitor is connected to DP, it does not catch signal
How should I solve this problem?
Can I use a UHD monitor on HD2500?
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Maximum Display Resolution
DisplayPort* 2560 x 1600, HDMI*, VGA
DisplayPort* with HDCP
Version 1.1
source: https://software.intel.com/en-us/articles/3rd-gen-hd-graphics-quick-reference-guide 3rd Gen HD Graphics Quick Reference Guide | Intel® Software
Check the manual if your monitor is backwards compatible with DisplayPort 1.1
At least it should offer lower resolutions.
For more complete information about compiler optimizations, see our Optimization Notice.