Computer monitors (i.e. screens or displays). For system/application monitoring, please use the /monitoring tag.

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6
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1answer
1k views

Program similar to xcalib to invert desktop colors

I'm using xcalib to invert colors on my computer at home. I have two monitors at work, and unfortunately the xcalib -i -a inverts only one of them (the one I don't want to invert). I haven't found any ...
2
votes
1answer
393 views

Multiple monitors HiDPI scaling

I have a Dell p2715q 27" 4K monitor and a HP 23xi pavilion 23" 1080p monitor for my dual monitor setup. The Dell monitor is currently running at a resolution of 3840x2160 @ 60Hz, while the HP is ...
2
votes
1answer
75 views

Turning off part of a monitor

I'm trying to disable the right third of my monitor, since it's broken. I can get less to be displayed using xrandr, but the monitor will then center the displayed stuff, so that's not quite what I ...
11
votes
0answers
1k views

Monitor connected via displayport to DVI adapter won't sleep properly

I have a monitor connected to my machine that displays odd behavior when entering power saving sleep mode. When entering sleep, the monitor will alternate between blanking and displaying a default ...
4
votes
0answers
696 views

What is the xcalib -screen number for the HDMI monitor?

I must use a VGA-to-DVI cable and a HDMI cable to run two monitors. I'm trying to invert the colors on both monitors but I can only invert one of them: $ xcalib -invert -alter -s 0 #works $ xcalib ...
4
votes
0answers
352 views

Screen flickers in Fedora 17

Screen flickers every 10 seconds. (I timed with a stopwatch, screen flickers every 10 seconds, 6 times a minute exactly.) I've used Windows and I'm trying to use Linux. I don't know much about Linux. ...
3
votes
0answers
80 views

How can I calibrate Zathura's zoom levels to my monitors?

I'm using Zathura (using the MuPDF plugin) to review various layouts for printing. It's important to me that I'm looking at things approximately the same size as they will come out on paper. I realize ...
3
votes
0answers
33 views

How to set VertRefresh without restarting X?

Suppose a second monitor is attached to a running system, and the video driver has some trouble getting this monitor's EDID to get its limits of operation. The monitor has a native resolution of ...
3
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0answers
141 views

how to use xrandr to mirror just a part of my main screen?

I want to make a mirror of just a part of my main screen to another monitor with different resolution. So it will be necessary to crop the desired area and apply a transformation to fit the screen ...
3
votes
0answers
343 views

How can I crop a 1920x1200 monitor to 1920x1080?

I have just purchased a 1920x1200 monitor, and have some situations where I want to force the output to the more common 1920x1080. However, I don't want to distort the output, and would prefer a ...
3
votes
0answers
249 views

How do I make the CLI run on dedicated graphics?

I just finished my Gentoo minimal install and the first thing I wonder is why I get no picture. I did have signal on the live CD, so that was pretty odd. I plugged the monitor into the Intel HD ...
2
votes
0answers
966 views

How to rotate the LCD screen/framebuffer to 180 degree?

I have a custom board with a Freecale i.MX6Q SoC. I am using Linux kernel 3.03.35 and LCD is 3.5 inch RGB type display. I want to rotate my LCD screen to 180 degree. I tried a lot to pass parameters ...
2
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0answers
409 views

Setting KDE to crop the laptop's screen to match external VGA device's ratio

I have a laptop with 16:9 screen ration. Sometimes I need to attach it to a projector via VGA. The projector ratio is 4:3. I use System Settings->Hardware->Display and Monitor->Size & Orientation ...
2
votes
0answers
343 views

Is it possible to set different resolution between console and X when Kernel Mode Setting is enabled?

My LCD monitor is dying. It has white screen issue: when power on, it's black screen (power LED is flashing), after a while (maybe one hour), it turns to white screen. Then I need switch to different ...
2
votes
0answers
212 views

Screen keeps dimming on Power (Dis-)Connect

I would like to disable the automatic screen dimming when I plug in our out my power adapter. Every time my laptop switches between battery/ac, my screen dims even though I have disabled it in every ...
2
votes
0answers
737 views

Debian monitor unknown and dual monitor setup

I'm running Debian on my laptop (Thinkpad T420 if it matters), and what I am trying to do is setup the native resolution. I want it to be 1366x768 but it's stuck at 1024x768 because when I go to ...
1
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0answers
11 views

Why does `xrandr` say I have 3 HDMI and 3 DP ports while I have only one HDMI and one DP?

This is what xrandr shows on my machine: $ xrandr -q Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192 VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 ...
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0answers
10 views

xfce every window on its monitors panel

I have triple monitor setup. I run manjaro 15.20 with XFCE4. I want that if a window, for example chrome, is on the leftmost monitor, it is on the leftmost taskbar/panel. This is how Windows does ...
1
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0answers
33 views

Build custom EDID with several modelines

I would like to build custom EDID using kernel sources. But I need to use several modelines - more refresh rates for same resolution. Is it possible using method in kernel sources? Could you please ...
1
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0answers
26 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 ...
1
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0answers
69 views

xrandr, xorg test screen error — default seems to be only valid mode

Running Arch Linux, kernel 4.2.5-1, Lightdm 1.16.5, xorg-server 1.17.4-2, nvidia 255.11-4, GTX 780 dual-link dvi out. I have a QNIX Evolution II 2710 and am attempting to overclock it but am running ...
1
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0answers
63 views

After booting into Debian 8 my VGA monitor goes black?

After I installed Debian 8 successfully on my machine (Intel Pentium CPU and no GPU ) and rebooted into GRUB2 successfully my monitor goes black (Still on) after it boots into Debian I can hear my ...
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0answers
60 views

Solving: Monitor settings default not compatible with laptop screen with Linux Mint Live DVD

I am talking a friend through the process of installing linux on his laptop. He chose mint as he liked the look of the GUI. However when he ran the live DVD he saw this: I recognise that this is a ...
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0answers
25 views

Color profile change seems to have no effect

I'm using a machine with both, Windows (10) and Linux Mint + Unity installed. Colors on Linux look quite strange and poorly calibrated, but everything looks fine on Windows. I was assuming that my ...
1
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0answers
63 views

Can't set xrandr brightness and gamma correctly

What is wrong? $ xrandr --output HDMI-1 --gamma 0.6:1.0:1.6 --brightness 0.76 $ xrandr --verbose | sed -n '/HDMI-1/,/Brightness/p' HDMI-1 connected 1920x1080+0+0 (0x6c) normal (normal left inverted ...
1
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0answers
91 views

Script for changing monitor refresh rate when fullscreen on a specific website.

Premise I recently discovered this website where I can watch legal streaming of plenty of animes. They use a flash player and the CEO said that, for legal reasons, they can't use a HTML5 player. The ...
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0answers
32 views

Monitor won't sleep RHEL 6.5

I just installed linux and even after 30 minutes the monitor never goes to sleep. I have no idea where to look beyond the power management settings. Tried even setting the turn monitor off after 1 ...
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0answers
160 views

debian wheezy switches from internal to external monitor after AMD proprietary installation

First I would like to say that this is my first try to set up a linux distribution. With taking Debian 7.8 I was probably over estimating myself. I do have the following video card: lspci -nn | grep ...
1
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0answers
99 views

Xorg: Connect remote display

I'd like to use laptop's monitor as second display for my main Debian workstation. I need exactly second monitor, but not Debian's X11 on laptop.
1
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0answers
189 views

External VGA monitor disappeared from display options list

I am running Linux Mint 17 Xfce on an HP Elitebook 840 G1 laptop. Up until just now I was using an external monitor, displaying identically the same thing as the built-in laptop display, connected via ...
1
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0answers
49 views

Fedora 20 Monitor Flickering /Tremble

I used a LCD monitor with Fedora 10. No problem. Then, I bought a new computer, Intel Atom (Packard Bell) and installed Fedora 20 KDE Plasma and attached the previous LCD monitor Everything fine, ...
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0answers
100 views

Invert *only brightness* for monitor

When using notebook in darkness it is more convenient to have the screen mostly black, compared to the default mostly white. The issue of inverting colors was discussed here frequently. One have a ...
1
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0answers
573 views

How can I get X to autodetect monitor specifications again?

I'm running fc19 in 64 bit. After going through the horrible process of trying to install kmod-nvidia, akmod-nvidia, and the proprietary nvidia driver, in an attempt to get CUDA working, I have rolled ...
1
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0answers
173 views

dbus problem with caja when using chocolate-doom on Linux Mint 14

I'm running Linux Mint 14 (Nadia) and I'm having a problem with chocolate-doom. When I run it, it changes the screen resolution but for some reason upsets caja (the file manager) like so (from ...
1
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0answers
439 views

backlight doesn't work with Linux Mint 14 on my Gateway NV78 laptop

Here is my problem it is Bug 765438--the backlight will not work on my Gateway NV 78 laptop. Won't work with Linux Mint 14, ubuntu from ubuntu 11.04 onward won't work with ps-bcd. Of course it ...
1
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0answers
198 views

Can Xorg use non-square pixels? [or can we fake widescreen in a non-widescreen resolution?]

I have an older PC connected to an HD television over VGA. The set of screen resolutions available for me to use are all 4:3 aspect ratio (or there abouts). Output from xrandr: $ xrandr xrandr: ...
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0answers
210 views

Low color depth while using X11 on a monitor

I am running Mint on a Late 2012 Mac Mini. While running X (KDE, LMDE or openbox) I notice a low color depth on My Dell S2209W monitor. I believe that the depth is not actually low as I can change ...
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0answers
309 views

Booting Laptop with external monitor stalls

Whenever I try to boot linux with an external monitor attached to my laptop, it hangs after checking the battery state with the following message repeated several times: ...crtc_helper_set_config... ...
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0answers
416 views

Cannot control brightness with Fedora 14 on Compaq CQ42

I've done the primary searching of similar questions, Found some, tried the solutions and they didn't work for me. So asking again. All the keys of my Fn combination works except the brightness ones. ...
1
vote
0answers
285 views

How do I disable automatic display search?

I have a Mint 10, based on Ubuntu Maverick Meerkat (10.10) installed on a HP nc6120 notebook. The machine is getting tired, so I decided to use it only with the external "monitor", in this case, the ...
0
votes
0answers
16 views

Triple screens but Mirror on external Monitors

I have a Dell Latitude E7450 running Linux Debian Jessie with KDE and I'm using a Dell E-Port II (Model PRO3X) docking station. I'm connecting two external monitors, both via DVI, for a total of three ...
0
votes
0answers
19 views

What's the best way to run two monitors using linux mint cinnamon?

I just built an HTPC and I'm running Mint Cinnamon 64bit. My goal was to have a desktop and with a streaming component - via the HDMI cable to my Samsung TV. So my question is... how best to use ...
0
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0answers
54 views

Monitor labels appearing in displays on Linux Mint MATE

Monitor labels have started appearing in the upper left corner of each display as shown in this screenshot showing my 2 displays: external monitor and laptop. The labels are always on top and do ...
0
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0answers
14 views

behavior of window manager when has expand monitor

In Debian system: two monitor: monitor A:1920x1080 monitor B:1360x768 monitor A is the major screen, has a fullscreen window. when i change resolution of A to 1024x768 (or any other resolution ...
0
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0answers
50 views

Why does adjusting the value within /sys/class/backlight/apci_video0/brightness not adjust the backlight intensity of my monitor

I am having issues adjusting the intensity of my monitor's backlight on Debian (Jessie) through Gnome Shell. I am using Intel intergrated graphics and a Asus VG248 Monitor. The brightness slider in ...
0
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0answers
21 views

Copying video setup from Ubuntu to Debian - external monitor

My laptop has a dual boot Debian + Ubuntu installation. In particular I am using Debian 8.0 with stock kernel 3.16.0-4 (or equally 4.1.10 custom compiled, I tested it and it does not make any ...
0
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0answers
177 views

Mint: display setup lost after waking up, starting up or reconnecting second screen

I've been using Linux Mint 17 for a month and this problem occurred pratically since I first installed it. I have a dual screen setup where my laptop is set as the main screen on the right and my ...
0
votes
0answers
113 views

Overscanning Problem - NOT a TV setting

I'm using a 42" Philips LCD TV (42PFL3704D/F7) as a secondary monitor for my computer, running Linux Mint 17.2 and Windows 7. My primary monitor is a 22" LCD monitor, and it works fine on both ...
0
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0answers
414 views

Ubuntu 12.04.5 laptop not detecting external monitor

I am running ubuntu on my work laptop. When I plug in my external VGA monitor it mirrors part of the screen (different resolution) but does not appear on my monitor list under System Settings > Screen ...
0
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0answers
390 views

What is the difference between RGB and YCbCr?

In my Linux Mint ATI Catalyst setup I have set YCbCr as default for Color Pixel Format? What is the difference? I subjectively think that RGB (Full RGB) is better for my eyes. YCbCr seems to be ...