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Questions tagged [4k-monitor]

Questions related to 4K refers to a display devices having horizontal resolution of the order of 4,000 pixels.

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radeon rx580 won't set resolution to 4k

I have a 4k monitor (Samsung UE570). I had a GeForce GTX 1060 6Gb card in the system and it worked fine. I've swapped out to a Radeon RX580 and installed the driver (amdgpu), but now I can't set the ...
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XPS 13 with a USB C dock using two 34" 4k monitors - after connecting second montor the XPS and first go blank

Ok, I have been at this for a while and tried every tip I could find and I am still struggling. Although I have not found an article that was 100% my issue so that might be why nothing has worked so ...
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80 views

Remmina doesn't scale remote screen resolution to fit smaller client screen

I know there is already another post about this, but I have not enough reputation to comment it, see Remmina refuses to scale the remote screen res to fit in smaller client screen Issue Remmina does ...
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110 views

YCbCr 4:2:0 4K 60Hz Output over HDMI 1.4 on Intel Integrated Graphics

I want to display 4K/60Hz screen over HDMI 1.4, mapped to Intel UHD 630. Currently I don't know how to change YCbCr color space format of display output, nor whether this is supported on Intel UHD 630....
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80 views

Ubuntu 18.04 Xorg server error

I am trying to configure my new laptop with Ubuntu 18.04 (HP Spectre X360 late 2018 version). In particular, I would like to have per-monitor HiDPI scaling for my 4k laptop screen and my ultra-wide, ...
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Parts of an app in Ubuntu 16.04 doesn't obey display scaling

I've set the display scaling to 2 and most apps scale accordingly. There's a particular software "COMSOL" that apparently scales, but there's a graphics window, which is for in-app visualization, that ...
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1answer
221 views

Ubuntu 18.10 kernel 4.18 crashes when 4k monitor is plugged in

Both during and after installation (meaning while running the USB iso and booting from HDD after) ubuntu will rapidly become unresponsive and eventually hang when my 4k monitor is plugged in. I have 2 ...
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2answers
549 views

Ubuntu 18.04 Screen flickering on a 4K laptop

I recently bought Lenovo Ideapad 720s (4K) and Dual Booted Ubuntu 18.04. However the screen is Flickering. I faced this even while installing but thought it would not happen once Ubuntu was set-up. I ...
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1answer
45 views

Why does xrandr ignore other resolutions on a 4k monitor and only list 3840x2160 available?

Running a Triple monitor setup, 4k on laptop left and 2 monitors on the right When using xrandr or mate monitor, it only shows that the 4k has only 1 resolution, a 3840x2160 resolution. In nvidia-...
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Is it Possible to have a different screen scale resolution for each workspace?

I ask because I own a 4k large monitor and its a pain in the ass having to always change the resolution when Apps don't scale well to 4k e.g Steam, Spotify, Runescape(osrs) and other. So what I would ...
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225 views

DisplayPort Flickers

I recently installed 18.04. I have two Monoprice 4K monitors, however, this issue occurs with just one connected. If I connect via DisplayPort the screen flickers constantly. I've tried three ...
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2answers
447 views

No more 4K Screen Resolution after Kernel Upgrade

Running Ubuntu 18.04, I noticed the problem twice after the kernel was upgraded (standard apt upgrade): a 4K resolution just yields a black screen. It falls back from 3840x2160 to 2560x1440. After ...
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1answer
328 views

Ubuntu on Razer Blade Stealth 4K

I am running Ubuntu on the Razer Blade Stealth and it works wonderfully except for the irritating problem where it crashes and the screen goes into grainy multi-color static. The only resolution I ...
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1answer
219 views

Ubuntu 18.04 Thinkpad T460p w/ UltraDock 4k@60Hz Blank Screen

I have a thinkpad T460p running ubuntu 18.04 on an UltraDock connected by DisplayPort to a 4K monitor. The monitor will work most of the time at 4K @ 30Hz. Sometimes I get a flickering artifact at the ...
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1answer
665 views

What media player can I use to play 4K YouTube videos (steam video)

I'm trying to play YouTube videos in SMPlayer and VLC player. How do I get 4K to play? With SMPlayer I can only play 1080p at 60fps. VLC player can only do 720p at 30fps. Lubuntu 64-bit. Intel Q6600,...
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What are the steps towards having a tty with at most 200 chars per line at 4K resolution?

My new laptop has a 4K screen. There are no bitmap fonts large enough to achieve 200 chars per line or less. More than 200 chars per line are just too tiny to read for me. I wouldn't like to change ...
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1answer
82 views

How to check if I have setup graphic card for 4K monitor?

I have installed Ubuntu 16.04 on Thinkpad P51 with 4K monitor. I would like to check that 4K monitor work correctly, because it seems that it doesn't work right. If this can help: lshw -c video &...
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1answer
401 views

GUI on 4k Monitor too small

I built a home theatre PC with ubuntu and got a 4k monitor for it. But the GUI is too small to read. In the settings, there is an option to scale to 200% but I think this scaling is also for videos. ...
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1k views

4K video performance with intel 610 UHD graphics

This is the VM45 from Asus, contains an Intel Celeron 3865U https://ark.intel.com/products/96507/Intel-Celeron-Processor-3865U-2M-Cache-1_80-GHz which is supposedly the lowest powered processor to ...
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1answer
317 views

16.04 gnome interface scaling

I have a laptop with a 4k monitor and Ubuntu looks fine as it detects it and auto scales the UI. However some other apps are way to small in 4k so I set my resolution to 1080. At first everything is ...
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84 views

How can mouse or trackball movement be scaled for 4K monitor?

Ubuntu 16.04LTS, Logitech Trackman Vista T-CG10, Samsung 4k 40" TV as monitor Is there a way within Ubuntu to change the mouse movement scaling? That is, for a given amount of trackball movement the ...
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1answer
893 views

Poor GNOME performance with Intel integrated GPU on Ubuntu 16.04 (Intel HD530 / 4K)

I have a really poor performance in my GNOME Desktop with my Intel HD 530 integrated GPU. On my 4k Screen, everything is unsmooth. Websites with a lot of Javascript load slow and are kind of ...
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0answers
537 views

How to fix cursor and icon display size issues for 4k display?

I am running Ubuntu 17.10 on a 4k display. In general, things look fine in the GNOME shell. However, some GTK/Qt applications still have trouble displaying properly, including: mouse cursor size UI ...
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1answer
3k views

HiDPI problems with 4k monitor and 17.10

NOTE: If anyone knows how to answer this, feel free as it will likely help others in the future. I ultimately returned the 4K monitor and got another 1080 monitor, which functions great. In any case, ...
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2answers
5k views

Solution for apps that don't scale on HiDPI displays

My laptop has a 15-inch 4k display. Almost everything works perfectly, but some applications don't scale and are too small to use. Some examples: Hipchat, Ardour, Steam, Gimp, etc. Is there a way ...
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158 views

Window zoom / size after removing external monitor/display

I have a very annoying problem. When i connect my external display the window sizes and zoom are not correct (Either to big or to small). This can't be fixed with the display application. When i ...
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1answer
2k views

How to: Share Mouse and Keyboard with 2 Computers?

How can I create a virtual KVM Switch over the local network between two computers? Goal: Use a 4K monitor between 2 computers. The traditional solution is a 4K KVM Switch. But they ain't cheap. So ...
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0answers
826 views

How to get ubuntu to recognize a 4k monitor

I have an ASUS G501VW notebook and recently upgraded my Ubuntu 16.04 to 17.04 (16.04 -> 16.10 -> 17.04) and the 4k monitor I am using via HDMI cable (Samsung 28" LU28E85KRS) is not showing resolution ...
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0answers
347 views

How to change resolution of the GDM login screen?

I'm using Ubuntu GNOME 16.04 on a retina display, and I have everything scaled and looking great, except for the login screen which is super tiny. I figured out how to set the scaling factor to 2 (in /...
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0answers
651 views

HiDPI scaling for Applications

I'm running Gnome Shell on Ubuntu using a 3440 x 1440 screen. Most of the time there is no issue with scaling but for some applications like Albert the scaling is wrong. In this screenshot everything ...
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4answers
5k views

How can I get 4K60 output over HDMI 2.0 on my Kaby Lake NUC?

I have an Intel NUC7i5BNK, which is a Kaby Lake NUC (i5-7260u) with HDMI 2.0 supporting 4K/60Hz output. I installed a fresh copy of Ubuntu 17.04 on it, but I can only output 4K/30Hz to my TV. I'm a ...
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0answers
612 views

ubuntu 4K resolution - tiny buttons and checkboxes problem

I'm having a built-in 4K display in my laptop. I have set the scaling factor in display to 2, so that the icons are scaled. However, in some applications I'm finding problems such as very tiny buttons ...
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0answers
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Poor graphics performance on 3840 x 2160 resolution using NVidia GeForce GTX 1080, nvidia-375 proprietary driver, HDMI-HDMI cable, and Ubuntu 17.04

I am experiencing very poor graphics performance on the following configuration. I've switched many different drivers all with the same result. 2560 x 1440 seems to work fine: 3840 x 2160 resolution ...
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2answers
528 views

How to properly handle 4K resolutions on Kubuntu 16.04?

I have a 15.6" laptop with a 4K resolution running with Kubuntu 16.04. At first, everything was so small, so I forced the fonts DPI to 220. The display works correctly, but I have to manually increase ...
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0answers
527 views

cannot set 4k resolution on external monitor with lower refresh rate

I have a new 4k monitor that's capable for 3840x2160 at 60hz. Unfortunately I only have HDMI, which means that the best I can hope for is running at 30hz (my understanding). If I try to switch the ...
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0answers
345 views

Ubuntu 16.10 won't maintain resolution settings on 4k TV

I built an Ubuntu 16.10 PC, with a GTX 1080 card, and have it running into a new Sony 75" 4k HDR screen. I am running the latest Nvidia drivers. Problem: the screen resolution defaults for 1920 x ...
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671 views

How to Change Screen Resolution on Unity 8

I am using the XPS 13 4k Version Laptop. Unity8 itself looks very nice but is currently hardly usable for me due to scaling issues as everything is very tiny. I cannot find an option to change screen ...
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0answers
265 views

VMware Workstation Pro 12 - Unstable when Ubuntu 16.04 VM is moved machine with 4k Display

Note: Due to my reputation, I am unable to post images. I am experiencing issues with my Ubuntu VM being unstable. The OS GUI crashes when I open the "start" menu on Ubuntu. I also get occasional ...
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0answers
1k views

Can Ubuntu run a 4k Monitor with current driver for Kaby Lake HD 630 graphics?

Can Ubuntu run a 4k monitor with the integrated HD 630 graphics processor on the Kaby Lake i5? Specifically what is the state of open source driver development? Since Kaby Lake is so new (at the time ...
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1answer
642 views

Kaby lake 4k hardware acceleration

I am planning to use Ubuntu with a 4k display and a Kaby Lake CPU. Kaby Lake supports hardware accelerated decoding of multiple video codecs. Obviously this also needs matching drivers - does anyone ...
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2answers
2k views

Mouse lag while running Ubuntu 16.04 LTS in 4K with this monitor: LU28E590DS

After buying and installing my new 4K monitor from Samsung, I noticed that the mouse pointer lags pretty badly on the screen even when there is nothing running on the computer except for the OS itself....
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0answers
445 views

Ubuntu 16.04 will not display on 4k TV

I have ubuntu 16.04 and its main monitor is a dvi supplied 1080. I also have a samsung 4k tv hooked up to the hdmi. I recently upgraded from a samsung 1080 TV and it would display both monitors. Now ...
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1answer
2k views

Ubuntu 16.04 4k@60hz via HDMI which card (and driver) is capable of that? [closed]

I'm running Ubuntu 16.04 and use a 4K TV as a monitor, the TV has 4K @60hz capability via HDMI. My current cards are an R9 270x and R9 280x, both card have only HDMI 1.4, so they can only go up to ...
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System Requirements for KDE KWin on 4K monitors

I'm interested in buying a 24'' 4K monitor and apply 2.0 scaling for a much crispier, and easier on the eyes, desktop experience using a UHD monitor to display a HD desktop. I won't do any gaming (it'...
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Which laptop for Ubuntu 16.04 with 4k external monitor? [closed]

I've been doing a lot of research but I can't seem to find an answer to this question. A plethora of laptops exist that do work well with Ubuntu; that I know. Some even include a builtin 4k monitor ...
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0answers
1k views

Optimize Kubuntu for 4k hidpi displays

:) I'm using Kubuntu and a 4K display, 3840*2160 resolution at 282dpi (my laptop is a Dell XPS 15" 9550). I have followed this guide to setup everything, and it is stunning, but i have a problem. On ...
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0answers
592 views

X11 apps do not scale well on 4k displays

After installing Ubuntu 16.04 on a Dell XPS 15 with 4K touchscreen display, I was able to set up the laptop's screen resolution to the native 3840x2160, and setting "Scale for menu and title bars" to ...
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2answers
43k views

How do you set scaling for a high dpi monitor and low dpi monitor independently?

So I have a 34 inch 3440x1440 and a 28 inch 3840x2160 monitor side by side. All apps look tiny on the 4k monitor. My only solution so far has been to increase the zoom level on applications that allow ...
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2answers
703 views

Switching to 4K on external display shuts off the monitor

Edit: Upgrading kernel to 4.11-rc2 solved the issue. I have a brand new installation of Ubuntu Gnome on Lenovo Thinkpad L460. Can't seem to connect an external display to 4K mode via DP. FullHD and ...
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0answers
635 views

Poor performance with 4K resolution with GTX 750 Ti

I have started using 4K resolution on Ubuntu 16.04 however find that the performance of Unity is poor. Switching between windows or dragging them can be slow, if I set the resolution lower this is no ...