4k screen & Debian (Dell inspiron 7000 2015)

[sunrat]

I'm running LG 27MU67 4k monitor with GTX970 on MX-15 (jessie based) with mostly no problems. 4.2.0 kernel from backports and nvidia-driver 352.79.
You need to set Fonts to higher DPI and adjust icon sizes. Some windows need to be resized when you open them and occasional programs just don't do hidpi well at all yet.
Overall I'm extremely happy with it.

@nikobit It would be better to start a new thread if you need more advice as it is only vaguely related to the original topic.

[nikobit]

to sunrat
OK, got it. Good idea though.

[tomazzi]

Is it worth all the mess?

Definitely not.

In every Operating System in the world, for at least 2 decades, You can see the "magic" number of 96 dpi (dots per inch).
This magic number defines the number of pixels per inch which are recognizable for a human eye... and this should be the end of a story - but unfortunately it's not.

If someone will tell You that HD/UHD offers "better" visual experiance on the 17'' screen of the laptop, then either he is a moron, or You, as the customer are a moron. "True" HD works starting from 32inches and UHD starts at ~60'' - but it all depends on the distance from the screen - and in case of laptops there's simply no chance to see a difference between HD and UHD... Keep wasting Your money...

Regards.