Can my laptop have external display 4k 120hz (144hz) ?? Acer Nitro 5 AN515-45

vdv2013

I have perfect 1440p (2k) 144hz and 4k 60hz via hdmi , but when I choose 120hz or 144hz in windows settings my external display just stop receiving signal

I tried 2 different HDMI 2.1 cables

Acer Nitro 5  AN515-45
5600H, RTX 3050Laptop, 512GB SSD, 16 GB, IPS 144 Hz
Windows 10

my external monitor is DELL G3223Q

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Dell G3223Q Gaming Monitor HDMI 2.1 Bandwidth Information

HDMI 2.1 Ports

The Dell G3223Q gaming monitor has 2 HDMI 2.1 ports that support the Fixed Rate Link 3 (FRL3) rate.

• Lane Rate = 6 Gbps
• Bandwidth = 24 Gbps

FRL Rate	Number of Lanes	Late Rate	Total Bandwidth
FRL1	3	3 Gbps	9 Gbps
FRL2	3	6 Gbps	18 Gbps
FRL3	4	6 Gbps	24 Gbps
FRL4	4	8 Gbps	32 Gbps
FRL5	4	10 Gbps	40 Gbps
FRL6	4	12 Gbps	48 Gbps
FRL Rate / Total Bandwidth = Number of Lanes x Lane Rate.

FRL3 translates to:
4K @ 120Hz (4:2:0, 10-12 bit) which is sufficient to support the latest gaming consoles: PlayStation 5 and Xbox Series S or X.
Or
4K @ 120Hz (4:4:4 or 4:2:2, 10-12 bit with DSC) which is sufficient to support computer video cards.

FRL3 is sufficient to support the current generation of gaming consoles, computer video cards, and there is no requirement to support FRL6 (Lane Rate: 12 Gbps and Bandwidth = 48 Gbps)

eGomes

Welcome @vdv2013,

Try update driver + firmware of your Dell Monitor G3223Q:

Dell 32 4K UHD Gaming Monitor G3223Q