Questions related to hardware displays, either internal (as in a laptop) or external (as in most desktop monitors, or projectors)

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3answers
161 views

How to disable KDE Windows preview?

I just turned to Kubuntu straight from Windows so even basic stuff here is a little difficult for me. When I point my mouse at any task in a panel, an annoying window comes up and I want to turn it ...
0
votes
1answer
173 views

Display Resolution Reverts to Low Resolution After Each Re-Boot

I have an Intel NUC (NUC5PPYH)running Xubuntu 15.10, and MythBuntu Frontend. The system uses a 42 inch Samgung LED TV as the display device. The NUC is using it's on-board Intel Graphics Chipset ...
0
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1answer
21 views

2nd Monitor isn't recognized in Display but is usable

I have Ubuntu 15.04 currently installed, with the AMD display driver. AMD recognizes both monitors, and has the accurate information and resolutions on both monitors, and both monitors set to single ...
0
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1answer
116 views

Installed Ubuntu 15.10, need help fixing pam_kwallet errors preventing me from logging in

History so far: Attempted one install, fought with video drivers for hours, and then I ran into an error while logging in again /lib/security/pam_kwallet5.so: cannot open shared object file: No such ...
1
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0answers
121 views

After installing Ubuntu 15.10 text,photo,video gets broken or shattered

Image gets broken, video gets blurry with layers and text look something alien language. When I select something sometimes it fixes temporarily. Blur happens on lost focus, and gets normal again ...
0
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0answers
40 views

Dual monitor on Ubuntu can't have the same resolution

I have a desktop with the latest version of ubuntu and windows 10. I have a dual set of monitors, both are technically twins, same brand and same size monitor. I have an nVidia GeForce 8400GS and has ...
0
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1answer
228 views

scale monitors differently without everything becoming blurry?

problem My Laptop has a 1920x1080, 34.4x19.3 cm Monitor and I connect it to a 1280x1024, 37.6x30.1 cm external Monitor. Since the external monitor has a 30% lower pixel density, everything on it ...
0
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1answer
34 views

Display works weird after installing new kernel

I've downloaded and installed linux kernel 4.3.2 over 3.19 on Ubuntu 14.04. Config was made with xconfig (I've changed only compression to xz). When i boot with new kernel, everything's fine, but then ...
0
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1answer
112 views

How to fix the physical size of a display in xrandr?

In a nutshell, my problem is that my TV is overscanning and I have nothing like a "Screen Fit" option in the TV. The TV is a Samsung model LN32R71B that I believe is providing a corrupted EDID file, ...
0
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0answers
43 views

Annoying strobing and other display oddities

With a fresh ubuntu install, stuff has been pretty messed up with the display of this laptop. There are two general cases upon turning the system on and selecting "ubuntu" from the boot menu: The ...
1
vote
1answer
207 views

VGA-connected display won't go beyond 1360x768

Ubuntu 15.10, nVidia GTX 650, three-display setup using all three GPU outputs (DVI, HDMI, VGA). DVI correctly powers a display at 2560x1440, HDMI correctly powers a display at 1920x1080, VGA won't ...
0
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1answer
126 views

Only low screen resolution available

Ok, I know how it sounds. I'm not that dumb. But, I have a 1600x1200 external display on a nvidia gtx 260m and the resolution wont go past 1024x768. *Ubuntu 14.04 BTW
0
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1answer
134 views

Using the Onboard VGA output and not using the PCIe nvidia card

I have installed a nVidia Geforce 780 card on my desktop. My motherboard has a onboard display port too. My Bios has the following choices of display Auto, CPU Graphics, PCIe, PCIx. Multiple ...
2
votes
2answers
372 views

Why can't I see 16:9 aspect ratios?

So for a while I have had an old EMA 15" monitor hooked up to my Ubuntu machine running Ubuntu 15.04. The Monitor runs 1024x768 (4:3). At this point all is fine. But I hooked my computer to my ...
0
votes
0answers
28 views

Why can't I rotate my display?

I have a new monitor connected via Display Port. In the system settings menu I cannot change the screen orientation (only normal is available). xrandr -q shows Screen 0: minimum 320 x 200, current ...
0
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0answers
19 views

How do I get crisp 1600 x 900 resolution on a laptop with native 1920 x 1080 display? [duplicate]

I have a new laptop with a native resolution of 1920 x 1080. I find the text and such to be very small. I tried the "Scale for menu and title bars" option but it just makes the UI of Ubuntu bigger, ...
8
votes
1answer
321 views

could you possibly install a malicious program using apt-get? [duplicate]

While installing various programs, I get asked to download some packages that are required for it to work. Some of them are well known applications, where the read-me document is trustworthy whereas ...
2
votes
0answers
203 views

Screen resolution and scale resets a couple of seconds after login into account. How to fix?

I'm using Ubuntu 15.10. My graphics card is an integrated Intel Graphics card, and my monitor is plugged through VGA. For some reason Ubuntu doesn't recognize my monitor's available resolutions and it ...
1
vote
1answer
66 views

How do I re-enable a display?

I've recently installed Ubuntu 14.04 as a main OS in my laptop. I had deactivated my external display in display settings because I was moving my PC to my WiFi router (WiFi drivers weren't working, ...
0
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0answers
31 views

Weird Firefox behavior, treating clicked links as if they were grabbed images

Lately in Firefox on 15.04 (fully updated), I've been noting a really irritating behavior. I do a Google search for something (for example; the bug isn't limited to Google results) and then click on a ...
0
votes
0answers
28 views

axis inversion and swap

Is there a way to detect which orientation axis inversion and swap need to be applied on a touchscreen? I am trying to write a script to solve this problem on multiple touchscreens but one axis ...
0
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0answers
219 views

No video (just black screen) on display connected to DisplayLink device

I have Fujitsu Siemens Lifebook S762 with dock station and DisplayLink device, running Ubuntu Wily (15.10). Official driver finally runs after setup script editing described here ...
1
vote
0answers
69 views

Unity launcher placement stuck on all displays

I am using three monitors with Ubuntu 14.04. In Display settings, I try to change the Launcher Placement setting to only select one monitor. The monitors flicker, but even though the setting now might ...
0
votes
2answers
99 views

Why can I watch 1080p videos if my Pc has a lower resolution?

When I tipe the following comand in the terminal xdpyinfo | grep dimensions I get the following output: dimensions: 1366x768 pixels (361x203 millimeters) As far as I know these are the number ...
0
votes
0answers
73 views

Unable to detect connected display

I have connected a Samsung monitor using a VGA to HDMI converter to my Dell Laptop (has only HDMI). How ever I am unable to see any new screens on Settings > Display. I have tried setting the monitor ...
1
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0answers
143 views

Connecting external screen to BQ aquaris e4.5 ubuntu edition

I want to buy a BQ Aquaris E4.5, but i want to try convergence with this phone. My question is: how can i connect it to a external monitor? Does Miracast, or other wireless display technologies, work ...
0
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0answers
168 views

Issues with 4k monitor

So, I have a 4K monitor, and Ubuntu 15.10 seems to have issues with it. The mouse pointer will revert to a tiny pointer at times, like when hovering over the unity bar. I set the resolution to ...
0
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0answers
30 views

Invert colors, change to grayscale as a toogle

I want to toogle my screen colors (for example with keyboard shortcut) between normal and inverted+grayscale. xcalib -i -a does what I need to invert them, but does not seem to be capable for making ...
0
votes
1answer
294 views

xrandr says that my recently created mode is an unrecognized option when trying to add it to my moniter

my moniter is actually a small tv and does in fact support 1080p although currently uibuntu says that the highest i can go up to is 1360x768. created a mode named 1080p that i can see when using ...
1
vote
0answers
108 views

How to force Ubuntu to detect external display?

My laptop recognises external display devices if I connect them before booting the system, but many times it doesn't if I connect while the system is running. In this case, rebooting naturally solves ...
2
votes
1answer
122 views

Move semi- maximized windows across multiple (2 or more) monitors

I frequently use Ctrl+Super+Arrow -Keys to move windows around. However, with a multiple monitor set up, the shortcuts only move the windows on the current screen. **Example of my situation: I have ...
13
votes
4answers
1k views

How to install Ubuntu on an old laptop missing its built-in display

I have an old HP laptop that is missing its built-in display. I use it plugged in to my TV via VGA. It runs Windows Vista fine, but it has recently started to slow down, and I decided it needed a dose ...
3
votes
1answer
1k views

How to set up triple monitors in 14.04 with NVIDIA GTX980M

I'm used to working with three monitors at the same time (laptop monitor + two external monitors). However, I don't seem to be able to get it working on my Ubuntu 14.04 with a GTX980M + Intel ...
0
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0answers
47 views

I can not configure any permissions for the monitor 24 " in xorg.conf

I can not configure xorg.conf all modes for your monitor LG Flatron w2443s (24 "), the system only defines the two available modes 800x600 and 1024x768 but according to the manual of the monitor ...
0
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0answers
55 views

Dual monitor resolution

The problem I have is software dependent, but I don't understand why and how. I have the same problem with all variants of Ubuntu 14.04 but not with Debian 7 and 8. I have the same problem with ...
0
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0answers
30 views

Pixel rows staggered in ubuntu 14.04 on HP 23-r012il

My display doesn't show the vertical lines properly. It seems as if the rows of pixels are staggered/shifted by one pixel alternatively. In simple terms, it creates a zipper like pattern out of ...
0
votes
1answer
175 views

Set up persistent custom resolution

I'm using a chromebook Pixel 2, with a 2560x1700 (3:2) display. My goal is to use a smaller 3:2 resolution. For a while now, I've been using a few commands to reset the resolution on my Chroot of ...
0
votes
1answer
801 views

Ubuntu MATE 15.10 - Cannot recognize my monitor through DisplayPort

I'm rather new to Linux, please keep that in mind when answering my question. I am dual-booting Ubuntu MATE 15.10 next to my Windows 10 OS. On Windows, my two monitors work fine side-by-side. ...
0
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0answers
14 views

Ubuntu Monitor turn of and on

When I turn off my monitor using it's button, and then turn it on again it does not receive any signal from the computer until rebooting it. The problem in Ubuntu 14.04.
1
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0answers
59 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 ...
0
votes
1answer
43 views

How do I set brightness to a lower level in lubuntu 12 (HP laptop)?

I tried everything I found online, but none of the methods I found worked. The buttons don't work, and there's no such thing as "Brightness" in Monitor Settings. I tried xbacklight -set but it didn't ...
2
votes
1answer
701 views

Using Thunderbolt Port (Mini Displayport) for second monitor 15.10

The Background I just finished installing Ubuntu 15.10 on my MacMini 7,1 and it is working great except for the inability to use 2 monitors (something I can do in OS X). The computer has an HDMI ...
3
votes
1answer
235 views

Problems changing resolution using xrandr: Bad Match

I go to the Displays, and the maximum resolution I have there is 1360x768 (16:9). However, on Windows 8.1 I can have the 1680x1050(16:10) resolution, without any type of problems. Because of this, I ...
0
votes
1answer
51 views

newly created mode using xrandr on 1440x900_60.00 has no effect on my ubuntu 15.10

I'm on ubuntu 15.0 with gnome 3.16.4 installed everything is fine except the screen resolution. my HP LCD tells me that it supports the max resolution of 1440x900. however there's no such mode in ...
1
vote
1answer
92 views

Unable to set custom resolution through xrandr

So I installed ubuntu 14.04 LTS on my mac through duel booting, and I was unable to choose my monitors native resolution (1920x1080). After looking around a bit I found I could do it using xrandr, but ...
0
votes
2answers
259 views

Change screen resolution of xubuntu-14.04.3 using VirtualBox running on Windows 10

I want to run a development environment of Ubuntu on my Windows 10 machine, since I'm just using it for coding I thought I'd just download xubuntu since I only really need a lightweight OS to run on a ...
0
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0answers
64 views

Display not recognised after switching off and back on

Sometimes, when I am away from my computer for a while, I like to switch off my monitor, because I feel it does not need to be active and waste energy for nothing. I have usually done this without a ...
0
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0answers
19 views

update 15.10 display exception

After updating Ubuntu from 15.04 to 15.10, screen display exception as following picture:
0
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0answers
185 views

xrandr causing various cursor problems

I am using ubuntu 15.10 on a MacBook Pro 2014 (Retina screen) and I am having to use xrandr to scale the HDMI output so that everything on my (normal DPI) 1080p external monitor isn't ridiculously ...
1
vote
1answer
73 views

Second Monitor does not display after reconnecting VGA

I have a dell Latitude 3440 running Ubuntu 15.04. I have this connected up to a second monitor using VGA. As soon as I disconnect the cable and try and reconnect again the second display will not ...