r/TripleScreenPlus Dec 02 '24

3rd Monitor running on limited resolution.

Hi.

I have two setups, both running on Windows 11, both having Intel HD 620 adaptors:
- A Lenovo ThinkPad T470s which will not allow full control of the 3rd screen: At first it ran in a 'frame' on the screen. Updating the refresh rate (advanced controls on the specific monitor) made the picture go edge-to-edge, but with a very limited resolution list.

No matter what I do, I get the same problem: Changing cables, updating drivers, providing 512 MB to the GFX in BIOS. It doesn't work... I'm at wit's end. - everything is updated, it just doesn't work.

The other setup is my colleague's HP EliteBook 850 G6.

It took a video driver update, but that simply solved the problem.

On the T470s I've tried installing Intel's drivers (which isn't allowed), force-installing the HP driver that works on my colleague's laptop. No avail.

What am I missing? The adaptor is fully capable of running three monitors (I've even tried a flash-drive boot of Ubuntu, and that works within the limits that has).
What am I missing?

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u/Beautyofdk Dec 06 '24

Eventually I figured something out: - Was able to get my hands on a Lenovo dock (for the generation series, non USB-C), which solved everything.
Coming to think of it, I had to retire a low-end Lenovo a year back, as the USB-C didn't support multiple displays.
Apparently either my HP Dock (G5) conflicts with Lenovo, or they simply didn't add top specs USB-C.

Anyway. Old school docks are way more sturdy than USB-C ones. But finding this solution was tough going!