Elitebook 850G8 + Thunderbold Dock G2 120W - max.1920x1080 on DP but Displays have native 1920x1200

[aHi99]

Hi,

i connected my new Elitebook 850G8 to my Thunderbold Dock G2 120W. On the DP outputs max. 1920x1080 can be choosen, But the 24" Displays all have the native 1920x1200. Funny: On the VGA Output on the dock the 1920x1200 resolution is correctly chosen, on the second display on the DP port max. 1920x1080 (and 1680x1050 suggested). 

What i have tried so far:

• Update Firmware Dock / NB
• Update/Downgrade to different Intel GFX drivers (HP / Intel)
• Change DP cable 
• Different display 
• Changed Bios Settings in BIOS Thunderbolt related
• Same Display connected directly to the NB HDMI Port: 1920x1200
• Older Elitebook 850G5 connected to the same dock: 1920x1200.

Any ideas?

VG aHi

[TryToDoMybest]

Hello

I'm pretty sure you can connect up two 4K displays on TB Dock G2 using an 850 G8 but in that case each monitor must be connected an a different DP channel.

I don't have at home any 1920x1200 monitor to try with mine 840 G8, where currenlty I have installed Windows 11.

but I can try with 4K monitors if for you it make sense.

is your 850 G8 with Intel Graphics card or Nvidia ?

bye

[aHi99]

Hi, thanks for your reply.

Unfortunately with only one 1920x1200 monitor connected over the Dock the max. resolution is still 1920x1080. 

The gfx is an Intel XE.

Thanks & Regards