Questions tagged [display]
Questions regarding the display(s) attached to a unix or linux machine, the DISPLAY environment setting, the ImageMagick display tool or (along with X11 tag) remote display redirection
700
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2
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1
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109
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No displayport over USBC with lenovo ideapad gaming 3 (15IHU6)
Displayport over USBC on linux not recognized
I am using archlinux on the Lenovo Ideapad Gaming 3 15IHU6,
I cannot get a display to react to the usbc port connection.
USBC-USBC is recognized as a &...
- 761
1
vote
1
answer
28
views
Automatically disable second display when it is turned off
I have a PC with 2 monitors attached to it. I don't need the second screen all the time, so I quite often turn it off. My problem is, that my desktop environment still thinks it is there: I can move ...
- 308
1
vote
1
answer
74
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Monitor detected on ubuntu but monitor is saying no signal
I’m experiencing an issue with my dual external monitor setup (Dell 34" and Dell 27") connected to a Dell XPS running Ubuntu 22.04.4 LTS. This setup has been working perfectly for a few ...
- 11
0
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0
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20
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No driver for MIPI-DSI display in Linux kernel, but there is in U-Boot, is it going to work?
I'm going to buy a MIPI-DSI display for my single board computer. The display has SSD2828 chip inside. There is no driver for it in linux kernel 'linux/drivers/gpu/drm', but i found one in u-boot ...
- 1
0
votes
2
answers
39
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Cannot display video from inside docker container:
Upon running an X application inside my container I get the following error:
* Errno 111: Connection refused
* Error location: /src/darknet/src-lib/image_opencv.cpp, create_window_cv(), line #231
* ...
- 3,707
0
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0
answers
19
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How do I make sure two entities manipulating the same SPI line with different linux modules don't collide, or is this handled by the kernel already?
TL;DR
I am developing some code for my SPI display that also has an SD card reader on it for use on a Linux board. I'm trying to use mmc_spi with the SD card reader portion, concurrently with a ...
0
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0
answers
51
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Animating GIFs as previews in File Manager "LF" or "ranger"
The desired behavior: When I'm using a file manager "LF" I would like to have animated GIFs as previews when I am over an image/gif mime-type file.
What I actually had on mind was to convert ...
- 31
0
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0
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27
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How can I run Firefox over the same running instance but in two different WAYLAND_DISPLAY?
I'm testing a new wayland compositor and debugging some rendering issues. To test this, I'm switching to a different TTY, starting compositor B and then trying to open a new Firefox window there; I do ...
- 48
0
votes
0
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93
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In some linux system , echo $DISPLAY shows :1 instead of :0 why is that?
DISPLAY as :1 typically means that your X server instance is running on display :1, but why it doesn't runs in :0, there is no other display nothing else is connected with my laptop, why it chose :1 , ...
- 101
1
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1
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79
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One of the monitors is not working
I'm using a 4 monitor system and a couple of days ago everything was working great. After one of the computer reboots, the monitor on the DVI-D-0 output simply stopped displaying the image, displaying ...
- 11
0
votes
0
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18
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Custom EDID for specfic physical monitor, not output [amd]
I have a setup where I connect to two different displays depending on where I am. I would like to use a mode which one of the monitors doesn't allow, but that won't be loaded when any other display is ...
- 101
0
votes
1
answer
98
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How can Firefox access /dev/dri/renderD128 when it should be only root accessible
/dev/dri/renderD128 should only be accessible to root or users in the render group as per:
project_kohli% ls -lha /dev/dri/renderD128
crw-rw----+ 1 root render 226, 128 May 26 09:...
- 3
0
votes
0
answers
2k
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Authorization required, but no authorization protocol specified
When changing the hostname in the icewm-session, the application startup breaks down. Such errors are written in the logs .xsession-errors when launching applications:
Authorization required, but no ...
- 120
0
votes
1
answer
159
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Can someone please explain how xrandr --scale works?
From the docs:
Changes the dimensions of the output picture. If the y value is
omitted, the x value will be used for both dimensions. Values
larger than 1 ...
- 123
1
vote
0
answers
60
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Display bmp image using u-boot on virtual QEMU
I have an issue of displaying a bmp image using u-boot on virtual QEMU. I've built QEMU using buildroot and added the following options in u-boot.fragement file to support splash screen and virtio gpu:...
- 11
0
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0
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22
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Keeping display contiguration (with panning) after disconnecting external monitor from laptop
Setup
Laptop: Lenovo Legion 5 15ACH6 (with Nvidia GeForce RTX 3050) eDP-2
External monitor: Asus ZenScreen MB16AH Monitor 15.6" FHD (connected via USB C) DP-1-2
Other Info
The external monitor ...
0
votes
1
answer
86
views
KDE environment distro show black screen in my system
I fresh install Fedora with KDE in my desktop computer with ASRock motherboard and AMD Ryzen 5600G with iGPU and i made the bootable USB using balena etcher. When i update via terminal
sudo dnf ...
- 1
0
votes
1
answer
32
views
Monitor power control on touchscreen monitor
I have a computer (Ubuntu) connected to a touchscreen monitor via a single USB-C cable. It provides video output, touchscreen abilities, and power.
My goal is to have a systemd service use xset or ...
- 101
0
votes
0
answers
44
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Grub menu not visible on TV (but working)
My question is similar to this one:
GRUB Menu Not Visible
To summarize, GRUB seems to be working in so far that it times-out after the expected 10s I set, and starts the expected default OS, but I can'...
- 101
0
votes
1
answer
796
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No HDR option on KDE Neon plasma 6 - using iGPU instead of dGPU?
I installed KDE Neon about a month ago on my laptop (Gigabyte Aero 15XD) which have an HDR display and an Nvidia RTX 3070. I updated Neon to v6 recently, on Wayland, and hoped to enable HDR, but I don'...
- 101
0
votes
1
answer
63
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Detecting if monitor is on/off
I want to detect if my monitor is on/off. This is because I need to record my screen time as an assignment. Numerous google searches haven't helped, as they return answers saying that it's not ...
0
votes
0
answers
346
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How to make an unofficial Orange Pi 5 Mipi-DSI display work on an Orange Pi 5 Arch Linux system, given kernel driver source and .deb package?
For a while I've tried to make use of a display I ordered from Aliexpress to make it work with an unofficial 7Ji Arch Linux distribution for Orange Pi 5, to no avail. Perhaps against my better ...
- 1
0
votes
1
answer
58
views
HDMI port not detected in CentOS 7
I purchased a new Lenovo ideapad 3, Core i7 decent laptop with Linux Mint. Had to backwards install Centos 7 to run an AWIPS weather program. Now the HDMI external port to run an external monitor ...
0
votes
0
answers
480
views
Failed to start Light Display Manager, stuck on black screen
I have been using Linux Mint for about a month. Today, I turned on my computer and first I got this error after the Linux Mint logo appeared.
UBSAN: array-index-out.of-bounds in /var/lib/dkms/...
0
votes
0
answers
28
views
lower resolution maintaining aspect ratio with center fitting
I wanted to acheive something like what was implemented in Windows. Lower resolution of the display, without stretching, that is centered display, which was shown on the first image on Windows.
But ...
- 133
0
votes
0
answers
113
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Please Help Dual GPU Graphics Drivers Debian 12
I have decided to switch over to Linux after years of using Windows. I have a 6 monitor set up paired with a 3090 and RX 5700 XT, the only reason I use the XT is because the 3090 only supports up to 4 ...
0
votes
0
answers
81
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Can’t set up 4K resolution on new PC after cloning Linux Kubuntu SSD from laptop with Clonezilla
SOLVED! THE REAL PROBLEM WAS MY HARDWARE:
I tried running Kubuntu in a live environment through my USB and I had the same problem (and in the windows setup then as well, but I didn't notice). After ...
0
votes
1
answer
396
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Custom Display Resolution Nvidia driver Pop!_OS 22.04 LTS
I'm trying to set a custom resolution for my primary display, one that the monitor doesn't advertise as available. On Windows I could set a custom resolution in the NVIDIA Control Panel, and then ...
0
votes
0
answers
140
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How to extend laptop to multiple monitor in linux?
I have Asus ROG Strix G15 laptop running Pop_OS and 2 FHD monitors, i want to extend (not mirroring) the display to those 2 monitors. What can i do to make it like the following:
To make it so the ...
- 1
0
votes
0
answers
77
views
KDE Plasma Wayland cursor is malfunctioning
This is a fresh install of Kali Linux in a virtual machine following a package update & upgrade. I selected Wayland KDE plasma as my DE when I was setting it up. If this changes anything, my ...
- 21
0
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0
answers
49
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Command that spits out exact display mode used? (Including DSC, chroma subsampling, etc.)
Are there any commands out there that will tell me something like:
Current display mode: 3840x2160, 120Hz, 10-bit, YCbCr422 (DSC unsupported)
Available display modes:
* 3840x2160, 120Hz, 8-bit, RGB444
...
- 101
0
votes
1
answer
380
views
How to prevent my external monitor from turning off when the system is idle
When I'm using my laptop if I don't use it for a while, the laptop's screen goes off and the external monitor turns off by itself. I'm trying to prevent my second monitor from turning off, and I want ...
- 113
1
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0
answers
251
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FreeBSD console resolution
I'm trying to get higher resolution on FreeBSD 14 while booting. I'm trying to match the same resolution I run my desktop in, 1280x720. I'm adding this to my /boot/loader.conf:
efi_max_resolution=&...
- 111
0
votes
0
answers
35
views
Touch screen and external monitor: a ZenBook Duo - like setup?
I am using the Steam Deck as a daily driver since some time and i am pretty happy with it. If someone is not familiar, this is a pretty beefy (for normal tasks) handheld linux PC.
I configured SteamOS ...
- 101
0
votes
0
answers
40
views
Wrong display resolutions with amdgpu drivers
After using EndeavourOS's Arch distro in my laptop, I decided to install the same distro in my main computer.
The computer has an AMD RX6600, and I figured out how to install the amdgpu drivers.
The ...
0
votes
0
answers
51
views
Display works when U-Boot loads but not with Arch Linux ARM
guys.
I installed Arch Linux ARM on my old Allwinner A31s tablet. I can use it via UART/serial console but I can't get the display to work. The tablet turns on, U-Boot loads and shows your submarine ...
- 1
0
votes
0
answers
116
views
Could not open display using Kubernetes service URL
I'm working on launching graphical applications on a k8s cluster.
My configuration is the following :
In a 1st pod, I running a X-server & a VNC Server
spec:
containers:
- name: test-x-...
- 101
0
votes
0
answers
189
views
Waydroid installation break config
I have followed the install instructions here : https://docs.waydro.id/usage/install-on-desktops. I use Debian 12 with Gnome 43.6 and X11 on Dell inspiron 15 laptop. After installation I figured out ...
- 1
2
votes
2
answers
569
views
Pop os brightness stuck at maximum
So I've encountered this problem every time I installed linux on my laptop. I've asked it before here, but that didn't go well.
Now I'v installed Pop OS (22.04) and I'm fully committed to it, it's not ...
- 33
0
votes
0
answers
63
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Running Linux Mint 20.1: HDMI max is 1920X1080 I want 2560X1440
I was using a DP output from a HP Elite Desk 800 G2:Linux Mint 20.1. My monitor (AOC) was on 2560X1440. It has 2 ports an HDMI and the DP. The DP has failed, the HDMI is good. I confirmed this by ...
- 1
0
votes
0
answers
32
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Screen goes blank at 4K 120Hz, when GPU memory clock is <100%
I have the weirdest issue.
When I set xrandr to display on my TV at 4K 120Hz, the screen goes blank as soon as anything remotely graphically demanding happens (like switching to overview or moving ...
- 357
0
votes
0
answers
87
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How to disable screen stretching in Linux AMDGPU
Kinda new to Linux Gaming stuff and recently I'm running a Kubuntu with AMDGPU and by default the screen stretches on different aspect ratios than my default (21:9). On Windows is easy to change this ...
- 101
0
votes
0
answers
360
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My Lenovo Ideapad gaming 3 refresh rate can not be set to 60hz from 120z
I recently installed ubuntu in my Lenovo Ideapad Gaming 3 and I wanted to set the refresh rate to 60hz so that I can save more battery.
The option for changing the refresh rate is not offered (nor was ...
- 1
3
votes
0
answers
491
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How to rename connected computer monitors in linux using wayland?
I have two identical computer monitors, both from the same manufacturer, with matching models and revisions. These monitors are connected to a Thunderbolt 4 docking station via DisplayPort, and the ...
- 217
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votes
1
answer
4k
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Why and how is DISPLAY variable set by MobaXterm but not VS code?
I am attempting to transition using the VS Code with the remote plugin for development on Linux VMs. However I am struggling with something related to the DISPLAY variable. Somehow during SSH to ...
- 101
0
votes
1
answer
151
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modinfo: ERROR: Module udl not found
Error occurs when running modinfo udl
Using kernel 6.4.11-arch2-1.
In my config I have:
CONFIG_DRM_UDL=m
# CONFIG_FB_UDL is not set
modinfo udlfb returns the same error.
This problem arose when ...
- 9
0
votes
1
answer
132
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Application windows content get displayed (upside down !) while session is locked
I recently experienced a very bizarre phenomenon. As I thawed my computer from suspend, I got back to my session manager's lock screen. However, the content of the window of application currently ...
- 351
0
votes
0
answers
557
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Debian fails to boot on new kernel but runs fine under old kernel, how to troubleshoot?
Following a bump from Bullseye to Bookworm, Debian is unable to boot under its newest kernel. The new kernel 6.1.0-11 does not work at all. After displaying the booting to kernel message, there is no ...
- 1
1
vote
1
answer
1k
views
Samsung monitor which was advertised to support 4K and 240Hz does not do both at the same time
I recently purchased a Samsung 32" Odyssey Neo G8 4K UHD 240Hz monitor to replace an old one. After explicitly setting the refresh rate to 240Hz on the monitor, I connected it to my Linux desktop ...
- 11
0
votes
1
answer
103
views
Console output not aligned on 4k screen
After a fresh Ubuntu Server install, the console (no GUI) output is not aligned to the left side of my 4k screen. Instead, each line starts at a third of the screen width away from the right side, and ...
- 13