monitor 4k to 29Hz [duplicate]

I purchased a Philips 276E8VJSB Monitor 27 "IPS 4K and I installed the monitor drivers and I have a resolution of 3840x2160 but only 29Hz of refresh: it is not possible to go further if I do not decrease the resolution. I have an HP ProBook 450 G4 notebook with Intel HD Graphics 620 connected via HDMI: I tried to connect it via type C to the DisplayPort with 4K 60Hz cable but it is not detected as monitor but as billboard device. Any ideas?

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1 Answer

According to theSupport information for Intel HD Graphics 620, the card only supportsHDMI 1.4, defined at Wikipedia as:

HDMI 1.4 added support for 4096 × 2160 at 24 Hz, 3840 × 2160 at 24, 25, and 30 Hz, and 1920 × 1080 at 120 Hz

As such, you have come up against the limitations of your display adapter. To do better will require a better graphics card.