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1
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1answer
29 views

Display used by screen in utmp

The X window system in a desktop Linux (where just one physical monitor is used) usually uses display 0, screen 0. The output of who in Ubuntu 14.04 is user1 :0 2016-06-15 14:25 (:0) ...
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0answers
14 views

Why is my monitor disconnecting after a couple of seconds?

My external monitor for my Dell XPS 13, which I struggled to get working on Fedora 23 because of an existing bug, has recently stopped working. I've been using it for a few months now but the last ...
5
votes
1answer
58 views

Random image generator

I am generating random data and trying to convert it to a PNG image using : head -c 1MB < /dev/urandom | hexdump -e '16/1 "_x%02X"' | sed 's/_/\\/g; s/\\x //g; s/.*/ "&"/' | tr -d "\"" | ...
0
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0answers
13 views

Mouse cursor & video display issues since upgrading to Lubuntu 16.04

A couple of months ago I dist-upgraded my Laptop (a Lenovo X201) fro Lubuntu 15.10 to Lubuntu 16.04. Since that time, I've had the following problems: On resume after suspend, typically the mouse ...
0
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0answers
18 views

Intermittent screen corruption after boot

Running Arch Linux. Every now and then when it is booting (after a line has been selected in Grub), it will display some boot messages as normal, but then display something like this: I suspect it ...
1
vote
1answer
41 views

Determine if there is any VNC display desktop active and its number

When SSH loging into my Linux computer, how could I know if there is any X-Windows desktop display session (i.e: :1 started by VNCServer) active and what is its number? Reason: I sometimes remotely ...
0
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0answers
28 views

Current display mode

Under the sysfs drm module I can obtain all available modes for a particular connector at /sys/class/drm/card0-*/modes. Is it possible or even logical to request the current state the card is in? All ...
1
vote
1answer
52 views

Running Java GUI on Raspi without a connected display

I have a Java GUI app that runs fine on my windows PC and on a Raspi running Raspian when the Raspi has a monitor connected. I want to run the java app on the Raspi without a monitor attached. I'm ...
3
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0answers
27 views

puzzling.stackexchange.com turns left monitor black

This is a weird one. This is a new issue on an existing Ubuntu 14.04, dual screen setup, using Unity, nothing out of the ordinary. When I go to puzzling.stackexchange.com on my left monitor screen ...
1
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0answers
12 views

How can I run a command if my screen changes state from standby to on and vice versa

I'm running linux mint 17.3. I have a backlight attached to my screens which are controlable via usb-serial. I would like to turn off the backlight automatically when the screens go to standby and ...
0
votes
3answers
29 views

How can I quickly check exactly how many columns my terminal has? [duplicate]

After window resizing, font size changes, etc., how can I easily and quickly check what is the current display width of my terminal?
3
votes
1answer
23 views

How to start an app on specific head?

I'm trying to start cheese such that it runs on a specific head on a multi-head display setup. The application options include a --display=DISPLAY setting: $ cheese --help Usage: cheese [OPTION...]...
1
vote
1answer
134 views

How do I fix my display after Atom broke it completely?

In VirtualBox 5.0.18 on Windows 10 I'm running the guest: Linux Mint 17.3 Cinnamon 64-bit Cinnamon 2.8.8 Linux kernel 3.19.0-32-generic with 3D acceleration enabled. Everything was working fine ...
0
votes
0answers
22 views

LightDM starts two X servers instead of one

I work with Debian over BeagleBone Black. An engineer replaced the (hardware) board display, and now two X processes start instead of one. LightDM and X settings are default. They worked well before ...
1
vote
0answers
14 views

Display driver ghosting pixels on linux but not on Windows

I recently bought an lcd panel for a raspberry pi display device I'm making. The pi outputs hdmi video to the display driver for the panel. The pi is outputting 1366x768 @ 60hz. The problem is about ...
1
vote
1answer
40 views

Running X11 apps on a screen with limited bit depth

This is a bit of an esoteric query, but I want to export the X11 display from my Raspberry Pi to an old Mac capable of only 256 colours. That's fine as far as it goes - but the colours are so mangled ...
1
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0answers
12 views

The window would like the X- represents at the same time in two frame buffers

I'm using the two frame buffer. /dev/fb0: 1024x768 (LCD) /dev/fb1: 1920x1080 (HDMI) I want to be the same content simultaneously on two frame buffer output. Is there any way ?
0
votes
1answer
304 views

No GUI after reboot, no obvious errors (openSuSE 13.2, nvidia drivers)

Short version: Rebooted for the first time in months, following daily updates; proprietary Nvidia drivers; no GUI (KDE); no smoking gun (so far) in logs. Specs: openSuSE 13.2 (64-bit), fully up to ...
1
vote
1answer
51 views

new debian installation doesn't like showing native resolution of display

EDIT: not sure if I can delete this? Everything corrected itself once I turned the other pc off. Seems interference was happening across certain wires. (Still wouldn't mind knowing what the ...
4
votes
1answer
26 views

How can I make screen fade to black from terminal rather than just shut off?

I set up a hot corner that uses xset dpms force off to turn my display off. However, I want the fade-out effect to black that OSX has. How can I achieve this with a terminal command?
1
vote
0answers
25 views

After changing resolution, pixelated screen

I am using Fedora 23 GNOME with a Dell Precision m3800 with a default 3200x1800 resolution. All system tools (like terminal, nautilus) are displayed in a pleasant way. Even Google Chrome, or some few ...
0
votes
1answer
47 views

Distinguishing between running a process in client terminal or on the server when using SSH [duplicate]

I'm new to Linux. I was trying to play a video on my laptop using SSH command from my android phone(JuiceSSH). but the video started playing in bytes in my phone's terminal. the player was VLC player. ...
4
votes
2answers
599 views

How do I scale i3 window manager for my HiDPI display?

I have a Dell XPS 13 9343 2015 with a resolution of 3200x1800 pixels. I am trying to use i3 windows manager on it but everything is tiny and hardly readable. I managed to scale every applications (...
1
vote
0answers
39 views

Enable/disable display using libdrm

I am new using DRM (Direct Rendering Manager). I want to know if it's possible to turn on/turn off the display using some function of DRM. I am looking for a way to achieve this but I didn't find ...
0
votes
1answer
35 views

how can we change the DISPLAY variable in linux [closed]

What is the command to change the DISPLAY display variable in Linux, because while installation of a program I am getting the error as in the attached screen shot, so please help me how to get it out ...
0
votes
0answers
15 views

Sane monitor hot-plugging and VNC

I have an Intel NUC running Linux that is sometimes plugged into a monitor, and sometimes not. I would like the following behaviour: If I turn it on with or without a monitor plugged in, Xorg should ...
0
votes
0answers
31 views

Screen blinks black on mouse clicks

When I use filezilla, and I connect to server. Screen goes black for 2 seconds. Click on a remote folder. Screen goes black for 2 seconds. After that, say I go to youtube and start a video. ...
1
vote
0answers
103 views

Monitor auto-detect Ubuntu

I am currently running Ubuntu 15.04 on my desktop machine with two monitors attached. One monitor is NOT directly connected to my machine but wired through a HDMI-switch (so I can connect my PS4 or ...
1
vote
0answers
33 views

Built-in display issue - Linux Mint on iMac (late 2009)

I successfully installed Linux Mint 17.3 Cinnamon 64-bit on my old iMac 21.5" (late 2009). When booting into Linux Mint (Live USB or installed version) there is still a bug: The built-in display ...
0
votes
1answer
55 views

Why not display characters which I typed in tty? [duplicate]

I pressed CtrlAltF1 to enter TTY1. I worked a while mainly on vim, then my shell (bash) stops echoing. If I type echo abc it does not get display. Instead I get a screen like this: How do I fix ...
1
vote
1answer
38 views

Unset or change default “re-detect monitors” windows+p cinnamon keybinding using gsettings

I'm trying to unset or change the default Windows+P (or to be more exact Meta+P) "re-detect monitors" cinnamon keybinding via gsettings, but having a hard time finding it in the gsettings tree. In the ...
1
vote
0answers
355 views

How to install DisplayLink driver on LinuxMint 17.3

I have a USB 3.0 docking station connected with my laptop having LinuxMint 17.3. I can't manage to install DisplayLink driver on it. I could make it work with Ubuntu 15.04, but with LinuxMint it wan't ...
4
votes
2answers
69 views

How to re-enable a monitor via command ine

To give some background, I almost exclusively use docking stations with my laptop. I have a few monitors connected to the docking station and always have my laptop closed when in this configuration. ...
0
votes
0answers
162 views

Kali Linux Screen Flickering Colors After Installation?

So I just installed Kali Linux from a USB. Everything went fine, the installation completed and my PC restarted, still everything file. Then it lets me chose Kali Linux to boot from GNU Grub and I ...
0
votes
0answers
114 views

Setting up LVDS display for debian jessie

I am just trying to setup my debian 8.2 stable in my Intel(R) Atom(TM) CPU N2600 @ 1.60GHz. The installation goes smooth without any issues. For this system , we are planning to use DUAL display ...
0
votes
1answer
37 views

Is framebuffer/vbe resolution a property of monitor or graphics hardware?

I have an AMD Radeon HD 4650 Graphics hardware, and a LCD monitor with an odd native resolution of 1440x900. I use debian stable on this system. When not using the firmware-linux-nonfree package, ...
0
votes
0answers
297 views

CentOS 7 blurry, fuzzy screen

I just installed CentOS 7 to Dell Optiplex 780 and I have problem with display. I am using two screens and they are quite blurry, fuzzy. You can see the problem (look at the terminal) - http://imgur....
0
votes
0answers
231 views

Cinnamon running without video hardware acceleration after moving HD to a new PC

I have just upgraded my PC. It was an old intel Q8400 with an nvidia graphics card. I changed the CPU (now an i3-6300) + Motherboard, and ditched the graphics card (want to use intel's graphics card ...
0
votes
0answers
17 views

gray highlighting is gone

Gray text highlighting no longer works on my Debian/stretch system. Neither in Emacs for indicating the selected region, nor here in the browser editor for text within backticks. Which system level ...
0
votes
0answers
80 views

Angstrom on beaglebone black, no output on LCD7 module

I've just compiled Angstrom from source: git clone git://github.com/Angstrom-distribution/setup-scripts.git cd setup-scripts ./oebb.sh config beaglebone . environment-angstrom-v2014.12 ...
0
votes
1answer
109 views

Ubuntu - Xrandr doesn't change my resolution

I'm trying to change my resolution using xrandr command line but when I type in a terminal xrandr --output LVDS1 --mode 1600x900_60.00 (which I added using --addmode), it doesn't change my resolution ...
1
vote
0answers
322 views

Arch linux DisplayPort external monitor not working

I got a problem with my secondary monitor (1680x1050) on Arch linux. When I connect my external monitor to HDMI it works fine, but when I connect it to DisplayPort (I tried it also on windows, works ...
0
votes
0answers
40 views

“--scale 2x2” in xrandr causes the monitor to not display anything

I've got a 4k external main monitor and I'm trying to connect a 1680x1050 external monitor to the left of it. I've tried using: xrandr --output HDMI-0 --scale 2x2 --pos 0x0 --fb 7200x2160 --...
2
votes
1answer
43 views

Is it possible to have xrandr in different modes based on workspace?

Is it possible to have xrandr at --right-of the screen in workspace1 and --same-as at workspace2? (I'm using openbox) If you interested why i want to do this: I'm having a presentation and i need to ...
0
votes
0answers
292 views

Installing Linux onto Teclast X80H x86 tablet

I'm trying to install Linux (any linux, but preferrably Ubuntu Mate) onto my cheap tablet Teclast X80H, which came preinstalled with WIN8/Android x86. Main specs are: CPU: Intel Bay Trail, 1830 MHz, ...
2
votes
1answer
2k views

How to manually configure a monitor in CentOS7, attached via KVM?

I have a fresh desktop install of CentOS7 with Gnome 3. I need to use this machine with a KVM but for some reason CentOS7 cannot detect my monitor through the KVM I have, so it defaults to "Unknown ...
5
votes
0answers
87 views

enable external display on FreeBSD console

tl;dr, I'd like to use the external display with FreeBSD 10.0 on an HP Pavilion g7-2270us. Don't care if it's mirrored or I have to select one or the other. Here's the symptoms: When a display is ...
3
votes
2answers
105 views

How to get a human-readable (e.g. RGB) value from `\e]11;?\a`?

The string \e]11;?\a presumably yields the current terminal's background color, but I have not found a way to use this information to get the color in a human-readable (e.g. RGB) format. I did try (...
4
votes
2answers
312 views

Set the bash display [while using GNU Screen utility] to not show the vim text after exit

Currently when I am not using screen utility, I am able to see the VIM content wiped out of the display when I quit VIM. However when I am using GNU Screen utility and opening a file in one of the ...
0
votes
1answer
752 views

How to change the resolution on screen at Startup in Fedora?

I have just installed Fedora 22 and am new to the Linux environment. My problem is this, at startup the GPU doesn't seem to auto detect the resolution of my monitor. xrandr --newmode "1440x900_60.00"...