Question Problem connecting LG Gram laptop <=> Dell U3011 monitor, HDMI => DVI-D

[Noseshine]

I would like to start by saying that what I'm trying to do has already been working find with anther laptop. My three year old Dell 2-in-1 has been connected to that monitor since I got it, using the same HDMI=>DVI cable that I wanted to switch over to the new laptop, getting the monitors native resolution just fine! So, connecting a laptop's HDMI to the monitors DVI-D works, in general, tested and proven with that cable and monitor and a laptop with HDMI 2.0 and the exact same physical connector that the new one has in the exact same spot on the left side.

I now have a problem connecting my new LG Gram laptop (17Z90SP-G.AD7BG [German], HDMI 2.1) <=> Dell U3011 monitor (2011, 32 inch, 2560x1600 native): I only get a very low resolution.

Info for the Dell U3011 is here. Again in German, but the specs should be readable/findable. I mention the vital things below though.

This old monitor does have HDMI too, but at the time the standard was 1.4 or something and only 1920x1200 is supported. The full resolution of the monitor is only available when using DVI-D (dual) or DisplayPort. That is why I needed to use an HDMI => DVI-D cable.

Since the new laptop has the same kind of connections on both sides I thought I could just unplug the monitor from the Dell 2-in-1 and plug it into the LG Gram and be done with it.

WRONG. I get only a lousy resolution, and I cannot choose anything even close to the native 2560x1600.

I updated the Intel Arc graphics driver. I checked if there is anything in the extended BIOS (nothing graphics or HDMI related there). I checked Windows 11 display settings. I checked the Intel Arc graphics tool (but it only points to the Windows system one).

I'm out of ideas. New monitor, or does anyone here have a tip? I know there are active cable adapters HDMI to DisplayPort too, while the HDMI to DVI-D can be done passively. I want to concentrate on the latter though, since it has worked just fine with the other laptop, and I'd get a new monitor before I fiddle around with an active converter cable.

Another question then:

Here is a picture (the one on the right there) from the (German) laptop info page that I provided a link to above. The laptop on its left side has the HDMI port, and a USB 4/Thunderbolt 4 port. Does that USB/Thunderbolt port also provide the video signal by any chance? Because then I could try another cable from there to the DisplayPort of the monitor.

 

[rgd1101]

if the monitor have displayport get a hdmi to dp cable.

https://forums.tomshardware.com/threads/how-to-connect-to-a-120-hz-display.3268285/#post-20043087
section 3.4.1

 

[Noseshine]

if the monitor have displayport get a hdmi to dp cable.

I already mentioned it in my last paragraph before my second question. Main reason for asking: It worked thus far, what has changed? And can I fix that? I would really like to know why I have to do something different now.

 

[rgd1101]

you mean this
1 x HDMI, 2 x USB-A (3.2 Gen2x1), 2 x USB-C (4 Gen3x2, Power Delivery, Display Port, Thunderbolt 4), 1 x 3.5 mm jack port

like it said it have displayport function

 

[Noseshine]

you mean this
1 x HDMI, 2 x USB-A (3.2 Gen2x1), 2 x USB-C (4 Gen3x2, Power Delivery, Display Port, Thunderbolt 4), 1 x 3.5 mm jack port

like it said it have displayport function

Only that it does not work.

I have a USB-C to DisplayPort cable, and nothing, and I mean NOTHING works. It is all black on both sides as soon as I connect laptop and monitor through that cable. Even if the display setting is "PC only" (i.e. it should not even use the external monitor).

And the HDMI to DVI-D worked on the other not very old laptop just fine. So I have two options, neither of them works, only the USB-C=>DP one produces an even worse outcome.

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I would like to add that I installed the U3011 driver on the laptop, in the device manager it shows up as Dell U3011 and not as Generic Monitor, as it did before I did that. Although that's probably more relevant for the color profile? I think they exchange capabilities over the protocol? Anyway, just adding this "just in case".

 

[Noseshine]

Experimenting further:

No progress with the HTMI => DVI-D (the one that worked fine with the three year old - or young - Dell 2-in-1 laptop).

Using the USB-C (LG Gram) => DisplayPort (Dell U3011) connection, the laptop sees the monitor:

The problem is, the monitor remains on, so it detects a signal (it signals if there is none), but it is all black. I can't even call the monitor's on screen menu, something it even lets me do when it has no signal at all.

Additionally, the U3011 showed up under USB "sound" devices. It does not even have any speakers.

There used to be "Control Centers" where you could do stuff, now there is nothing at all to try? It either works or it doesn't.

I checked the BIOS - again - nothing relevant as far as I can see. Windows 11 and Intel Arc Control Center don't show any options either (the latter only linking to the Windows settings for anything truly relevant).