[NAME]  This is a known issue with certain Dell systems. The system is working as designed. The HDMI connector on the motherboard used in these Inspiron and Vostro systems can't output a resolution higher than 1920x1080. This is the motherboard working to the limits of its design.Resolution on external monitor limited to 1920x1080 using HDMI
I have a DELL laptop with i5-1035G1 Processor with no external graphic card. After installing clean Win I installed all recommended drivers from here. After connecting the LG monitor via HDMI/HDMI cable, I installed the monitor driver from here. The problem is that the maximum display resolution offered in Display settings is 1920x1080. The cable cannot be wrong. I can use the same monitor with higher resolutions from my PC. Any suggestions what to do are welcome.
Resolution 2560x1080 not available for external monitor LG 29UM59-P