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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4k Monitor Using Ubuntu 21.10 with Nvidia Geforce GT710 card

I recently Bought a BenQ EL2870U 4K monitor, was originally using a 1080P AOC Monitor, ive figured out how to use the fractional scaling etc, but i noticed that if i run 4k at 60hz using either the ...
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4K monitor with 150% scaling for web development (pixel perfect designs)

I had 1440p monitor with 100% scaling for many years. In some cases, when I need to be precise with pixels, it's faster to make a screenshot, zoom it in in gimp and get the value than calculate all ...
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4k@60Hz via Docking station not working

Hello fellow Ubuntu users. I'm new to the Ubuntu-world and trying to set up my 4k monitor via a Lenovo docking station with 60Hz since 30Hz is unbearable. I have a Lenovo T14s Gen 1 with USB-C ...
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Setting resolution from 4k to full HD (1920x1080) will result to black screen with mouse cursor. Ubuntu 20.04 with 5.11 kernel and Nvidia driver 470

I am running Lenovo Thinkpad x1 carbon gen 6 with 4k (3840x2160) screen running Ubuntu 20.04 and 5.11.0-37-generic kernel. Most of 3rd party programs have scaling issues with 4k resolution. The font ...
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590 views

Ubuntu 20.04 - how to fix sluggish 4K monitor

LG 27inch 4K monitor connected via HDMI with Ubuntu 20.04 exhibiting sluggish (like slow-motion). How can I do to fix?
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GPU hang while long run 4k video play on VLC (ubuntu 18 or 20)

Please help to ptovide your suggestion for the following issue. Thanks in advance! VLC hang or re-boot when play 4k video under ubuntu environment with over night. (sometime hang couple hours or close ...
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84 views

How to use USB-A port for Displayport screen?

I have a Dell Latitude computer running Ubuntu which has just 1 USB-C port. I would like to connect two external monitors. On my Mac, I use two USB-C to Displayport cables and that works very smoothly....
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451 views

Ubuntu 20.04.2 does not recognize 4k resolution on Samsung 28" 4K UE590 monitor

Ubuntu 20.04.2 does not recognize 4k resolution on Samsung 28" 4K UE590 monitor. The monitor has the HDMI1 and HDMI2 input, the HDMI1 input ubuntu works 4k but with only 30fps, standard, as the ...
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71 views

How to prompt maximum resolution beyond 1080?

Ubuntu 20.04 installed on a Gateway SX2370-UR30P. Originally connected to a 1080p TV. Now connected to a 4K monitor via HDMI. Max resolution shows 1080. What can be done to prompt / configure ...
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327 views

Ubuntu 21.04 Guest on VMware Workstation 16 Gnome Forgets UI Scale On Resolution Change

I am running Ubuntu 21.04 VMs in VMware Workstation Pro 16.1.2 build-17966106. When toggling between full screen and normal mode (which causes VMware to poke the guest tools to change the virtual ...
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205 views

External monitor connection cause Ubuntu (20.04.2) freeze

Setup: Ubuntu 20.04.2 LTS 64bit Intel® Core™ i7-8850H CPU @ 2.60GHz × 12 NVIDIA Corporation GP107GLM [Quadro P1000 Mobile] (P1000 [Zbook Studio G5 mobile workstation]) A few days ago I hade my ...
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Dual 4K monitors causes OS freeze

I'm suffering from the same issue identified here when running dual 4K monitors: Ubuntu 20.04 Everything freezes except for mouse pointer Hardware is Asus X570P motherboard with AMD Ryzen 9 3900XT 12-...
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virtual 1080 monitors on single 4k monitor

Some 4k monitors have multiple inputs and allow 4 1080 screens on the screen (one in each corner). The advantage of this over a single 4k monitor and snapping applications to the corners, is that you ...
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271 views

20.04 and BenQ Monitor Connectivity Problem

I am baffled by the Ubuntu connectivity problem between my Lenovo M83 desktop and a new BenQ 4K display. I can connect to the monitor using the Ubuntu Live USB images, and from Win 7 Pro on my dual-...
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335 views

Ubuntu 20.04 with KDE is laggy on 4k monitor

I'm using Ubuntu 20.04 with KDE Plasma on a dual boot with Windows 10. I use a total of 3 different monitors, two being Full HD, and one 4k. My system uses an AMD Ryzen 3700x CPU, 16GB RAM and an ...
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316 views

How to increase font size in virtual console (tty) in Ubuntu 20.04 on 4k screen? Or how to change the resolution?

I am using a dell XPS 13 laptop with 4k screen and the text on the virtual console is very small. I would like to increase the font size. With the command sudo dpkg-reconfigure console-setup I took: ...
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181 views

Ubuntu 20.04, running HDMI to display. Switching display inputs to another box and back results in a black screen

I'm running Ubuntu 20.04, and HDMI to my display via a 4K switch. I have another machine connected to the same switch. If I switch the inputs to that box and back, I end up with a black screen in ...
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'unlock' nautilus icon zoom for HiDPI screens?

I'm using a 32" 4k monitor, and if I try to browse a folder of [2000x1000px] image icons, the max zoom takes it up to about 1.5" diagonal, which is absurdly small. For reference, browsing a ...
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56 views

VirtualBox Manager does not start on 4k monitor

I have just installed Virtualbox from standard 20.04 ubuntu repository: virtualbox-dkms/focal-updates,now 6.1.16-dfsg-6~ubuntu1.20.04.1 amd64 [installed] virtualbox-qt/focal-updates,now 6.1.16-dfsg-6~...
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1answer
2k views

Can’t enable 4k resolution on external display

I have a MSI GL-65 Leopard ms-16u8 notebook with Ubuntu 20.04.1 installed. My notebook, according to the specification, has a 4K capable HDMI(version 1.4, 4K at 30Hz) port, Intel GPU and Nvidia ...
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277 views

amdgpu never sets the lowest P state

I am using Ubuntu 20.04 with 5.8 kernel and amdgpu driver for my RX 580. # lspci | grep VGA 2d:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Ellesmere [Radeon RX 470/480/570/...
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282 views

Ubuntu 20.10 4K Resolution Issues

I connected my Laptop with a HDMI 2.1 cable to my 4K TV. But unfortunately the TV output resolution is till 1080p. Please advice on how to get it to work. Even the display setting only shows a max of ...
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151 views

Viewsonic 4k monitor has no video after fresh install of Ubuntu 20.04

I installed Ubuntu 20.04 using a 1080p monitor because my motherboard doesn't output BIOS information to HDMI. After the install completed, I disconnected the 1080p monitor and plugged the HDMI 4k ...
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Downsize screenshots while using fracional scaling

Ubuntu 20.04 | Nvidia Geforce GTX 1050 Ti Using an 32 "4K monitor with 3840x2160 resolution works fine, but when I use fractional scaling with 150% scaling I get very big screenshots (5120x2880). ...
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367 views

Set QT_SCALE_FACTOR=2 for snap apps

I'm using VLC which is installed via the snap store. However, I have an issue when viewing it on a 4k display. So I'm wondering if there is a way to set the scaling for snap apps, as I may run into ...
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2answers
3k views

No 60Hz Refresh Rate option on my 32" 4k external monitor in Ubuntu 20.04

In my Ubuntu 20.04 display settings on a Dell Latitude 7490 laptop, I can set my laptop monitor to 1920 x 1080 resolution at 60 Hz, but I cannot set my AOC CU32V3 32" 4k monitor to 60 Hz (see ...
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2answers
3k views

Ubuntu 20.04 - Small Cursor in some applications - 4k Screen with 200% Scaling

Update: I've narrowed this down to Ubuntu on Wayland, running without Wayland my cursor is the correct size across all applications. I still don't have a solution but I'm closer than before. Original: ...
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1answer
935 views

modprobe: ERROR: ../libkmod/libkmod-module.c:838 kmod_module_insert_module() could not find module by name='off'

Having issues with the system freezing on greeter with modprobe nvidia and modprobe nouveau failing to activate after the addition of an "NVIDIA GEFORCE GT 1030" graphic card following a ...
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3answers
5k views

How do i get my monitor working in 4k 60 Hz in Linux?

I used linux for two years. I bought a new 4K Dell monitor, connected it to HDMI, booted into Windows, and it worked fine, then I booted into Ubuntu Linux and it just show no picture (the same thing ...
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video frames visibly refresh themselves when playing video clips or youtube on Ubuntu 20.04

My computer comes with strong hardware: AMD Ryzen 3900X; 64G memory; Navdia RTX 2080 Super. Ubuntu 20.04 was installed. However when I watch youtube videos or test a 1080p mkv format video, I can ...
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6k views

Can't get 4k @ 60hz, only 30hz

I have a lenovo thinkpad t490 with "i7-8665U" which supports 4k@60hz over usb-c/thunderbolt ports according to: intel docs: https://ark.intel.com/content/www/pl/pl/ark/products/193563/intel-...
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3answers
2k views

Ubuntu 20.04 4K resolution low FPS / stuttering?

I have setup Ubuntu 20.04 in Dual boot with Windows 10. On Windows 10 @ 3840 x 2160 (16:9) resolution I do not have any issues with video, smooth scrolling, IDE, games. However on Ubuntu @ 3840 x 2160 ...
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1answer
2k views

Inconsistent Resolution / Positions / Fractional Scaling for 4K Display & HD Display Using NVIDIA Drivers

Inconsistent Resolution / Positions / Fractional Scaling for 4K Display & HD Display Using NVIDIA Drivers Background So, I've recently moved back onto Ubuntu after deciding to take a break from ...
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1k views

highly unstable 4k 60Hz monitor display ubuntu 20.04

I have a monitor U32J59 from samsung that I was using with windows computer just before. It worked just fine. I am now using my Ubuntu desktop and I have huge issues making it working at 4k 60hz. The ...
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196 views

About 4k video playing on browser

I am trying to play 4k video on Firefox. When I play it on VLC, it is smooth. Is there any GPU driver installation requirement on Firefox? Or plugins or extensions?
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how to set proper environment diplay settings for 3840x2160 resoultion on Asus Zenbook Pro UX501

how to set proper environment diplay settings for 3840x2160 resoultion on Asus Zenbook Pro UX501. fonts are miniaturized. keyboard not localized. Why Ubuntu is not able to recognize the hardware and ...
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1k views

The font size of Java-based application for 4K screen

My laptop is hp spectre x360 13 and my OS is Ubuntu 18.04.4 LTS. I want to use a Java-based application called paraprof(here). Sorry, I don't use Java so I put part of its description below (don't ...
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1answer
304 views

HDSPmixer and HDSPconf HiDPI Scaling Factor

All - I am running Ubuntu 20.04 (Gnome) with the Ubuntu Studio packages installed. I'm working with a RME HDSP 9652 (Hammerfall) sound card and an ASUS HiDPI 32" screen. hdspmixer and hdspconf work ...
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883 views

Problems with login screen (GDM3) on Ubuntu 20.04, nvidia card and hires monitor

After migration to ubuntu 20.04 i'm facing a problem with login screen or whatever. I have nvidia 2070 card and 4k monitor. I installed proprietary nvidia (tried both) driver over "Additional drivers"....
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1answer
194 views

No video/display in logon screen after user logoff (4k display, nvidia)

When I logoff the user and expecting to see the logon screen (unity-greeter), my monitor looses the signal and stays black (repeatedly trying someting, but failing). I can get a terminal with Ctrl+Alt+...
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1answer
2k views

Unable to select 4k in Ubuntu, works in Windows

I have a dual boot Dell Inspiron 17-7700, with Nvidia GeForce 940MX. I plan on buying a 4k monitor, but I wanted to test if it actually worked on my laptop. The display I am trying to connect to is ...
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I have a problem with my new 4K monitor, in the morning or after it comes out of sleep mode, I get horizontal lines appearing for a while

I just got a new monitor, a Samsung U32J59x which is a 4K monitor (3840x2160). My video board is an Nvidia GeForce RTX 2060. In the morning or after the monitor goes to sleep, when I wake the monitor ...
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2answers
409 views

Lenovo T540p, Nvidia GeForce GT 730M, 19.10 Eoan, 4K second monitor problem, 3840x2160 mode not autodetected

I just want my 4K monitor to work as a 4K monitor when it is plugged in. Pixels help, FPS not so much. Basically what the title says, the screen in my office gets plugged in with an HDMI to Mini ...
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1answer
3k views

Fixing scale for 4k and 1080p monitor

I find it difficult to believe that there isn't a GUI for changing the scaling for multiple monitors, but I am prepared to use randr if necessary. I have a new 3840x2160 monitor which I've placed ...
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0answers
117 views

My cursor changes color and size when I click

I have a 4k display attached to my laptop's builtin 1920x1080 display. I have to use LightDM because my external monitor was not working with GDM. When I don't click on anything my cursor is large ...
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1k views

Can I run two external 4k monitors on 18.04?

I was just provided with a new Dell XPS13 7390 laptop for work running 18.04.3 LTS. I need to get a dock for my peripherals and, since this thing has Thunderbolt ports, I'm considering getting a ...
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151 views

Two screens on 4k and 150%

I have two screens with 4k resolution: Dell XPS 15 9570 (Vidia® GeForce GTX1050Ti MaxQ + Intel HD Graphics 630) Benq PD2700U On the Benq only half of the screen is visible. What could be the ...
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1answer
872 views

Mirror Displays of 2 different resolutions

I am wanting to mirror asymmetrically whereby the main monitor is a lower resolution than the HD TV we are using as a monitor. When the displays are in non-mirrored mode (spanning?) each monitor ...
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3k views

Use i3 on a 4k monitor

I've decided to change my windows manager to have a tiling windows manager. Since I heard a lot of good from i3, I've chosen to go for it. Problem is, I have a 4k monitor and as I switched to i3, it ...
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98 views

Ubuntu 4K TV sync issues

I have an issue with what I think is a sync problem when I connect my Sony X830C 4K tv to my laptop which is a Lenovo T470s with Intel HD 520 graphics. The TV is connected via displayport to an ...