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

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12
votes
1answer
756 views

How to modify the default setting adopted by xrandr when connecting an external monitor?

I am confronted with a problem when connecting the external monitor while the computer is open. At that point it seems that xrandr adopts one of the combinations that do not work. As a workaround to ...
1
vote
0answers
622 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
vote
1answer
114 views

Monitor does not switch off

I set the monitor to switch off after 14 minutes. But what happens is that it cycles between being off a second and backlight comes on another. I am sure that this is a Linux issue for the monitor ...
6
votes
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 ...
12
votes
2answers
924 views

Can I color-calibrate a Dell U2413 wide-gamut monitor under Linux?

If I get a Dell U2413 wide-gamut monitor to use with Fedora for photography, will I be able to use it properly? I've got a ColorHug, and I see that there's a U2410 ccmx profile; will that get me in a ...
8
votes
1answer
822 views

How can I send power on/off signals to a VGA monitor?

I've used some old spare parts to make a sort-of kiosk for my kitchen. It's running OpenBSD and has a simple text based UI (no X Server). I plan to add an Arduino with a motion sensor that ...
0
votes
1answer
99 views

Replacement for standard KDE monitor manager?

My Linux experience is roughly a 4/10. I'm running the latest Debian-Wheezy install, and I've been having some trouble with the stock KDE display/monitor manager (to clarify as these terms seem to ...
1
vote
0answers
175 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 /var/...
1
vote
2answers
1k views

Fedora 18 detecting non-existent monitor

I have an HP Envy dv7 with a dual boot setup of Win 8 and Fedora 18. On 07/22/2013 I updated all packages in Fedora 18 that had updates available. After a reboot, Fedora is now detecting that a ...
4
votes
1answer
2k views

How can I setup a dual-head display in portrait mode? (Arch)

I have two monitors on my desk in portrait orientation. One is plugged in with a DVI cable and the other with a VGA (I don't have two DVI cables available) into my Gigabyte Radeon 7750 HD graphics ...
4
votes
1answer
68 views

Whether monitor is off without appealing to X or /proc

How can I know whether the monitor is on or off if X is not running, and without appealing to /proc/acpi/video? The latter isn't available from my kernel. If X is running it's just a matter of $ ...
3
votes
1answer
629 views

Finding screen resolutions without $DISPLAY through python or shell scripting

I am developing a personal project/idea for a headless Raspberry Pi that works without a GUI display. I am working on a text graphicsesque design. As the Raspberry Pi allows one to plug into most any ...
1
vote
0answers
450 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 ...
0
votes
0answers
414 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 ...
1
vote
0answers
200 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: ...
1
vote
1answer
536 views

How to let GDM shares monitor configure with GNOME?

I'm using gnome under Arch Linux in my laptop with a 1920*1080 monitor on the left of it, I set the monitor as my primary display in GNOME and everything works fine after I log in. However, GDM ...
4
votes
2answers
272 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
1answer
459 views

Test for monitor resolutions

I want to buy a new display device, but I don't know if it will be supported by my card because the weirder/higher resolutions: 2560 x 1080, or 2560 x 1440. Is there any method to create a virtual ...
3
votes
2answers
1k views

Detecting monitors on machine over local ssh connection

I need to write a script to check on video related things on machines in the local network, e.g. Is a monitor plugged in? Are the video drivers up to date and appropriate for the hardware? Is Xorg ...
2
votes
0answers
419 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
1answer
360 views

Multiple monitor with Linux

I' m installing Arch Linux with OpenBox, at the moment I've only downloaded OpenBox and tint2, but I have to install all the necessary. Before doing everything I'd like to know how to use my two ...
15
votes
2answers
5k views

Get monitor make and model and other info in human readable form

I have extracted the shorthand version of the current monitor attached to the computer. Here is an example: vendor "VSC", prod id "18500" In Ubuntu's Monitor Preferences, it is identified as ...
3
votes
2answers
1k views

KDE; each monitor another desktop

Is it possible to configure for example 4 desktops and switch them separately for each monitor?
2
votes
1answer
2k views

How do I set my monitor to widescreen mode in Mint when it doesn't recognize widescreen capability?

My computer is a former laptop from which I removed the screen. The graphics card is an ATI Radeon of some kind. I have it plugged into a small TV via VGA cable, but Mint still thinks I have the ...
2
votes
1answer
424 views

How to force X to use specific display, regardless if it is plugged in?

As it says in title: How to force xorg to use specific display trough HDMI, regardless if it is plugged in? I have TV that has some crazy "power save" option that can't be turned off and X thinks ...
1
vote
0answers
211 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 ...
7
votes
2answers
31k views

Debian: very low resolution and an “unknown monitor” problem

Edit: I have installed CrunchBang (or #!, a Debian-based distro), and that seems to have solved all of my resolution problems. I've just installed Debian after using Linux Mint for a few months. ...
4
votes
0answers
362 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. ...
1
vote
1answer
665 views

Connecting 2 monitors to a laptop

I have a laptop running Fedora 15, Gnome 3.0.1, and Mobile Intel® GM45 Express Chipset. I have a VGA monitor connected to it, as well as a DisplayPort to DVI adapter to connect a second monitor. Both ...
2
votes
0answers
347 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 ...
3
votes
1answer
322 views

Issue with laptop screen when opening lid

I use Archlinux, with acpid to configure the laptop lid behavior rather than systemd. Currently, I have it set so vbetool sets dpms off when the lid is closed, and reopening the lid sets it back on. ...
11
votes
2answers
2k views

How to measure light?

I've got a Dell Latitude E6410 notebook which changes lcd light intensity in response to ambient light levels, so it has to have some photocell. How can I access the data from this photocell? I tried ...
19
votes
3answers
8k views

How can I put my HDMI display into (and out of) power save mode?

I am using a Raspberry Pi to run an information display in an office. I want the display in power save mode when outside of business hours. I was going to use cron to execute something at the ...
3
votes
1answer
556 views

resolution of attached widescreen

I wanted to connect my TV (Sony Bravia) to my Laptop. My laptop has a displayport and the TV a HDMI. So with the adapters, I'm able to connect those two, and that part works. What doesn't work, is ...
3
votes
1answer
1k views

Twinview: 2 monitors difference resolutions with NVIDIA

I'm successfully using twinview to drive 2 monitors for my home theatre computer (one in the case, one projector). I recently upgraded my projector and now the two screens have vastly different ...
2
votes
0answers
219 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 ...
1
vote
1answer
2k views

Best Touchscreen Monitor for Linux under $500 [closed]

Looking for a 17" or larger touchscreen monitor that works with Linux. It will be used outdoor and I hear capacitive and optical screens are more durable. It doesn't need to be multi-touch. Please ...
1
vote
1answer
750 views

Nvidia 9800GT and HP w1907v resolution woes

I was happily dual-booting Windows 7 and Ubuntu 10.10 a year or two ago, with, as in the title, an Nvidia GeForce 9800 GT graphics card (on a Gigabyte GA-MA790XT-UD4P) outputting VGA to an HP w1907v ...
6
votes
1answer
2k views

How to find the best monitor resolution and put it to work? Fedora

In this question I'm asking how to install a compatible driver to a Fedora machine, but, the main problem is a bad resolution. So, how can I find the best resolution to my monitor and put it to work? ...
3
votes
1answer
2k views

tty (console): disable monitor

In .xinitrc, I use xrandr --output LVDS1 --off to disable the monitor of my laptop (I always use a projector at school). But, before I log in with xinit, or when I temporary go to the console (...
2
votes
0answers
762 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 ...
3
votes
2answers
468 views

Graphics dim, but mouse cursor not dim

When I resume from suspend-to-ram often the graphics on my internal screen is dim (around 30-50% intensity). Initially I thought it might be the backlight, but the mouse cursor is not dimmed - only ...
2
votes
1answer
901 views

Mimo 2G USB Monitor and cheap computer (Raspberry Pi?) [closed]

I have a Mimo 2G USB Monitor (UM-710S I believe) which I got in college due to the lack of space for a real second monitor in the dorm. Now I don't really have a use for it, so I thought of ...
6
votes
1answer
533 views

Multiple monitors as cloned desktop windows

I am running Fedora 16 using an Nvidia card with 2 monitors. I have the monitors setup as 2 separate displays (in that I can move a window from monitor to monitor). One monitor is mounted in a ...
4
votes
3answers
4k views

Split a physical X display into two virtual displays?

I just purchased a TripleHead2Go and configured it using OSX. What this box does is simply take 1-3 multiple external monitors and combine their signal into one single resolution. I'm using two ...
1
vote
0answers
315 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... ...
1
vote
1answer
2k views

Out of range error on monitor after installing video card drivers

I have a dual boot system with windows xp and a fresh install of linux mint 12 lxde. I installed the video card drivers for my ati radeon (hd5570). After this I get an out of range error on my monitor ...
4
votes
1answer
2k views

Cannot set up screen panning in Ubuntu with xRandR which states that it cannot find the modes

I am using a Samsung n150 netbook with a 10.1 inch screen and it has a maximum screen resolution of 1024x600. I am running Ubuntu 10.04 LTS and want to enable screen panning for a larger virtual ...
1
vote
0answers
424 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. ...
11
votes
2answers
16k views

How do I set default brightness after boot?

Linux Mint 12 (64bit), on an Acer Aspire 7730g. Upon every boot, the screen brightness is set very very low. Easily fixed via the function keys, but still a very annoying thing to do after every boot. ...