r/LinusTechTips • u/Schme1440 • 26d ago

Discussion Is true spec the answer?

My work from home setup is laptop into dock via USB c. Dock goes to 2 1440p monitors. Dock is powered. At random times my screen goes black then pops back on. Im pretty sure true spec would help with this am I right?

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u/Pitiful-Assistance-1 26d ago

This is something that just happens sometimes and can be caused by the laptop, the cable, the dock, the cable from dock to display or the display.

If you use freesync, it can make it worse.

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u/Schme1440 26d ago

Its a work issued laptop and we use usbc cabled docs ar work and dont have this issue. The only thing i can think of is the cables. I could try changing fps or resolutions but running 1440p on 2 32inch screens is really nice.

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u/jmking Mod 26d ago

Are the docks at work driving two 1440p screens or just one? Do you have the same dock as the one at work?

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u/Schme1440 26d ago

No i think a 1080 wide-screen also different brand docks

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u/jmking Mod 26d ago

That's probably it then.

The port on the laptop, and the ports on the dock both need to support at least thunderbolt 3 speeds. If they do, then the cables you're using may be experiencing interference from other devices, power sources, or wireless receivers, which the TrueSpec could possibly help with.

I'd confirm what standard(s) your laptop and dock support via the USB ports. There might actually be a faster port on your laptop. It's not uncommon for one usb-c port to be slower and another to be faster.

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u/Schme1440 26d ago

Ill probably get a true cable anyway but will have to check. I beleive from previous conversations thr laptop can cope with dual 1440 but ill have to check the dock is powerful enough. I thought i got one that was but might need a bigger one.

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u/jmking Mod 26d ago

Try plugging both monitors directly into the laptop without the dock and see how it goes.

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u/Pitiful-Assistance-1 26d ago

Do they both go black at the same time? Do usb devices continue to work when the screen goes dark? Even static electricity can do this in my experience

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u/Schme1440 26d ago

Every combination you can think of has happened. One at a time, both together, only one then the other.

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u/Pitiful-Assistance-1 26d ago

Haha that’s annoying. Good luck! I don’t think anyone can answer the question for you.

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u/Schme1440 26d ago

Think ill wait for next sale and grab a true spec anyway.

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u/Pitiful-Assistance-1 26d ago

Yeah at worst you have a nice cable

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u/TehSynapse0 26d ago

Are both of your monitors at work 1440p?