Ubuntu Multimedia :: XRandR Doesn't Detect DVI Output To TV?
Mar 25, 2010
I'm trying to hook up my TV to my MacBook1,1 laptop running the Lucid Lynx Beta. The TV is connected to the laptop via a mini-DVI to DVI-I adaptor, which is connected to a DVI-I to video adaptor, and this is connected to the TV via a component cable.
Under OS X, after plugging in the mini-DVI cable, the TV automatically becomes a secondary display for the laptop (extending the current screen), so from a hardware perspective everything seems ok. Under Ubuntu, plugging in the mini-DVI cable elicits no response from XRandR whatsoever (xrandr -q reports DVI1 disconnected both before and after). URandR and the regular "Detect Displays" button in the "Monitors" preference app do nothing. The laptop has an Intel GMA 950 chipset, and the Intel driver is running successfully (Compiz works fine). I have a clean xorg.conf (generated by X -configure), except for the addition of "Virtual 2048 2048" in one of the SubSections of the Screen section. I'd be happy to post the full xorg.conf if it would be useful.
So far I have tried xorg.conf tweaks, and I have followed instructions to manually tell xrandr to output to DVI1 as described in the comment by Marko Mikulicic here.
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Apr 25, 2011
When I'm connecting second monitor to the laptop, Display Settings applet (and xrandr -q) does not detect full list of supported resolutions. I need to restart my system or perform Log off while monitor is connected to make full list available.openSUSE 11.4 32 bit, Ati Mobility Radeon HD 3450, proprietary ATI driver 11.3 8.831.2-110308a-115935C-ATI.External monitor is FullHD SyncMaster B2330 (1920x1080)I wonder is there any other workaround to access full resolution that does not require restarting of the system?
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Jan 29, 2016
I just switched from Ubuntu to Debian and I am having trouble doing something that I found easy to do with Ubuntu. I have a Radeon R9 graphics card from MSI with dual DVI ports and I'm trying to get xrandr/arandr to detect my dual monitors but it only detects one. I've installed all the drivers and even installed the "amdgpu" driver from the Ubuntu repository but still not detecting. What drivers am I missing?
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Jun 3, 2011
I have problems with xrandr in a system with Nvidia GeForce 8600GT video card. I want to use xrandr to rotate the screen on the fly.
~:$ xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 175, current 1600 x 1200, maximum 1600 x 1200
default connected 1600x1200+0+0 0mm x 0mm
1600x1200 50.0*
1600x1024 51.0
[Code]....
I tried enable the last option, change values for xinerama and twinview, but nothing works.
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Jul 24, 2010
Code:
I'm trying to make several files: each named after the display and containing resolutions. But for some reason I get null when trying to read lines.
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Apr 30, 2011
i tried updating ubuntu from 10.10 to 11.04. It didn't work out, i got just a black screen trying to load new ubuntu. Nevermind, after multiple tries to recover it i simply installed ubuntu 11.04 over it. It works fine now, but i already got some problems Mainly, i can't find a way to pick the appropriate resolution. I have a 19" monitor with 1280x1024 resolution, video card is nvidia 8500gt. Any GUI tool (nvidia driver settings or 'monitors' tool) doesn't allow me to pick what i want. xorg.cong is nearly empty, that's all what i have there
Quote:
Section "Device"
Identifier "Default Device"
Option "NoLogo" "True"
EndSection
I did some google searches and found out about Xrandr (i'm not much a techy really). That's what i get running xrandr in the terminal
Quote:
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 240, current 1024 x 768, maximum 1024 x 768
default connected 1024x768+0+0 0mm x 0mm
[code]....
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Sep 14, 2010
I'm running 10.04 on a Radeon HD 4650 card with fglrx. The driver installation went without a hitch, and the log file contained no errors.
When I try to run
Code:
aticonfig --initial
i get the response
Code:
Found fglrx primary device section
Unable to find any supported Screen sections
Running
[Code]....
My best guess is that I have to write an Xorg.conf file, in which I say what type of monitor I have.
I cannot do that, as I need to shut down the Xserver in order to make it generate my xorg.conf file. When I shut it down I get the black screen.
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Jan 11, 2011
I just purchased a Logitech ClearChat Comfort USB Headset. It works fine in Windows but unfortunately the same can't be said for Linux. It doesn't even seem to be detected as when I use the command cat /proc/bus/input/devices I get
I: Bus=0003 Vendor=0b38 Product=0003 Version=0110
N: Name="USB-compliant keyboard"
P: Phys=usb-0000:00:1d.2-1/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.2/usb8/8-1/8-1:1.0/input/input0
U: Uniq=
[Code]....
I checked Volume control and I have Headphone checked, and in switched Headphone is also checked. Actually... Maybe it is being detected... In the Device dropdown menu in Volume control I see "Logitech USB Headset". I checked that and the volume is turned up, speaker and microphone are selected in preferences... Sound is still coming out of my monitor's speakers though.
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Jul 16, 2011
I am running ubuntu 11.04. I am able to set my screen size to 1600x1200 in windows but ubuntu doesn't offer me that size in xrandr, though it says my maximum size is 4096x4096, I have posted my xrandr results below. What do I do to set my screen to the higher resolution?
Screen 0: minimum 320 x 200, current 1280 x 960, maximum 4096 x 4096
VGA1 connected 1280x960+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.0
800x600 60.3 56.2
[Code]....
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Mar 4, 2010
I have Ubuntu 9.10 installed but the sound is way below normal..
Pulse-audio just doesn't give enough output..
Max output is just average...
I have a 945 Intel chipset..
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Mar 9, 2011
I work with FC14 and a AXLE nVidia GeForce FX 5500 256 MB Graphic Card AGP 8x 256MB.
Code:
[gastonv@gastonv ~]$ /sbin/lspci -v | grep nVidia
01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5500] (rev a1) (prog-if 00 [VGA controller])
[gastonv@gastonv ~]$ uname -a
[Code]....
Can I change something, so I can see on TV the full hight on my monitor screen with the same nvidia drivers installed?
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May 29, 2011
I've installed Squeeze 2.6.32-5-amd64 on my laptop (Alienware M17X R3, Intel i7 Sandybridge, ATI Technologies Inc Broadway [ATI Mobility Radeon HD 6800 Series])The screen is 17", with maximum resolution of 1920 x 1080. After a default install of the operating system, the maximum resolution I can select is 1280 x 1024.My research so far has suggested that I need to edit the /etc/X11/xorg.conf file and provide xorg with the necessary resolution.
Again, by default, the xorg.conf file is not created. This leads me to believe that xorg is scanning my hardware at startup and providing me with whatever it thinks is appropriate. I tried following these instructions to generate an xorg.conf file. This process created an xorg.conf file under /root/.
When I copy this xorg.conf file to /etc/X11, I get a blank (i.e. black) screen. Deleting this file restores the default resolution 1280 x 1024.This system is dual booting with Windows 7. Under windows I am able to get a 1920 x 1080 resolution, so I know my hardware is up to it.At this stage I have yet to install the drivers for the Radeon graphics card.What are my options regarding configuring xorg to give me a higher screen resolution?
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Aug 24, 2010
I have been running linux on my thinkpad r50 for about a year, specifically 9.04. The problem is with this new 10.04 lts installation when I go to hook up an external monitor via the avg port and run xrandr to initialize the display, the laptop monitor panel becomes a garbled image and the television that is attached to the computer says no input. As of now I am stumped and open for assistance on this one.
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Jun 23, 2010
I have been arguing with my acer aspire one laptop since I bought it in terms of the screen resolution and have never been able to solve the problem, although I seem to be getting close. I just updated to 10.04 (the netbook remix).I have been following the instructions for how to fix it here. The result was this:
Code:
liz@Pippin:~$ cvt 1366 768
# 1368x768 59.88 Hz (CVT) hsync: 47.79 kHz; pclk: 85.25 MHz
[code]....
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Dec 30, 2010
how Xrandr supports Dual screens. I am attempting to setup Dual Screens on a Ubuntu 10.10 System with an ATI twin head card (DVI + HDMI) Non-mirrored, separate desktops However on connecting a device to the HDMI output - the DVI screen output appears to loose all panels, icons. Only the mouse pointer & desktop background remains.
I believe the output is defaulting from screen 0 to screen 1. I found a solution by creating two devices in xorg.conf and assigning one for each separate screen. BUT this created a new problem of loosing my mouse pointer. how I can get my mouse pointer working or the correct way to setup dual screens.
[URL]
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Sep 11, 2010
When I installed my 64 bit system of Ubuntu 10.04 the sound worked very well and I were very happy. The problem started however when I installed Skype which uses pulseaudio. As soon as I start skype (or any other application that uses pulse, HoN for example) the applications sound output or input does not work at all. If I have pulseaudio started in some way, applications that I suppose do not use it like spotify or flash player stops to produce sounds. And when I type "pulseaudio" in the terminal it gives me this:
[Code]...
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Jan 6, 2010
I am setting up a display system that will not have a keyboard/mouse and automatically boots into gnome and starts up firefox to a display page. The page is optimized to a 720p resolution which I can set when we use a TV for the display, but is not an option if we use a monitor. I am trying to find a way to set the resolution to 720p automatically on boot up. I am always using 16x9 displays with a DVI connection (to HDMI on TVs)
I was able to get one monitor working by creating a script and setting it to load in the Startup Applications as shown:
Code:
#!/bin/bash
scnres="1280 720 60"
modeline=$(cvt -v $scnres | grep Modeline)
modeline=${modeline#Modeline }
[Code]....
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Dec 22, 2010
I can run xrandr and I get the various modes thatwill supposedly work with my monitor.Then, I run xrandr -s 800x600 and the command tells me thathat mode is unavailable, even though it claims that it is in xrandr -s.What on earth does that mean, then?
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Jun 16, 2010
my mediacenter is attached to an beamer with the optimal resolution of 1280*720 ubuntu 10.04 doesnt offer me this revolution (on my intel 915 graphis controller). this means i have to add this resolution to the possible resolutions. first i used cvt
Code:
cvt 1280 720 60
and got this result:
Quote:
# 1280x720 59.86 Hz (CVT 0.92M9) hsync: 44.77 kHz; pclk: 74.50 MHz
Modeline "1280x720_60.00" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync
then i added this to xrandr
Code:
xrandr --verbose --newmode "1280x720" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync
and
Code:
xrandr --verbose --addmode VGA1 1280x720
now i can select and use the new resolution - until next reboot. after an reboot 1280x720 is again not available. even if i work with sudo - the resolution isnt there....
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Jun 3, 2015
Background: I am running Debian 8 with the Xfce DE on my Toshiba Satellite Laptop.
When at home I will connect my laptop to an external display. I did the same while I was running Ubuntu; however, with Ubuntu I could activate my laptop display by simply disconnecting the external monitor. With Debian + Xfce, unplugging the external monitor leaves my laptop screen blank.
In order to activate my laptop display, I have to open Display settings, turn on laptop display -- which still leaves my laptop screen blank -- and then switch resolution: there are two listings for 1366x768 under resolution, and only the second one restores my laptop display. Please note that if I have both displays on at the same time the size of the output on my external monitor will be reduced to about the size of my laptop's display.
I would like the create a Bash script which can automatically switch between my displays. After some Googling it seems like xrandr is the tool I need for the job. However, I have been having trouble getting it to work.
I tried the command Code: Select allxrandr --output LVDS1 --auto --primary --output HDMI1 --off. This however just turns my external display off without turning on my laptop's display. I suspect this has something to do with the fact that LVDS1 has two modes at 1366x768; perhaps only one of them can actually display? I'm not sure, but anyways here's the output of xrandr:
Code: Select allScreen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
  1366x768   59.99*+
  1360x768   59.80  59.96Â
  1024x768   60.00Â
  800x600    60.32  56.25Â
[Code] ....
Is there a way I can specify that xrandr should use the second 1366x768 mode?
I just realized that the second mode is, in fact, 1360x768 rather than 1366x768...
The good news is that I fixed my problem. It turns out that my backlight was not turning on, giving the appearance that my laptop screen was not displaying anything.
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May 13, 2015
Updated old Eeepc 1005HAB to Jessie. Used to have a text file:
xrandr --output LVSD1 --mode 1024x600 --fb 1024x768 --panning 1024x768"
that I could run (twice in a row, it needed) to allow the scroling of the screen to see the bottom 1/4.
This no longer works.
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Mar 17, 2011
Are you running Lenny? If yes, try this:
Be sure that there is an active X.
Press Ctrl+Alt+F1 to switch to tty1.
Login with your normal username and password.
Enter the command: "xrandr -d :0.0 -q"
You should be rewarded with information about your current screen.
Are you running Squeeze? If yes, try the above procedure and please explain to me what this means: No protocol specified
Can't open display :0.0
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Feb 26, 2011
I have a dual Monitor Setup, both SXGA LCDs, one rotated left. With kernels and Xservers available from debian making settings appropriate kills X and apparently leaves modesetting and keyboard missconfigured - monitors say: no signal and it is not possible to switch to any VT until sysrq-unraw (alt-print-r) is pressed, which makes the system responding to keyboard, but still leaves the screens blank. Restarting the display manager sets a working mode with both screens showing the same.
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Apr 29, 2010
I cant seem to get the sound working and when I click on perference then sounds and go to the output selection it has only dummy output as a option.
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Mar 7, 2010
I installed KMplayer but I cant play video files...No video output but can get only the audio output...So how to make this work for videos?
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Jan 25, 2011
Running 10.10 and win 7 on my HP dv6-2150us laptop and I'm having a few issues.
First how do I get HDMI audio output to my TV? I think I have just a integrated Intel graphics card. It works fine in windows but I can't seem to get it to work in Ubuntu. I tried searching but couldn't find anything pertaining to this issue.
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Jan 6, 2011
I am sure that this is very simple but I have installed sound juicer and the gstreamer plug ins. The problem is i still cannot select MP3 as an output output option
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Jul 16, 2011
what will i do? so that i can install ubuntu on that partition?
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Oct 4, 2010
Its my first post in here so please be patient I am trying to use regex in perl script to detect allowed words from the file and then print output to the screen.
As an example : I have text file with orders and returns :
Item2-SKU-2-11.08.2010-online
Item3-SKU-3-11.09.2010-return
Item4-SKU-4-11.09.2010-store
My question: is it possible to make sure that i am ony outputing to the screen orders based on few conditions like Item,order form e.g. online.And is it possible to have multiple matches (Item2 only diplay if ordered online etc)
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Jan 18, 2010
Upgraded my laptop from 2Gb to 4Gb RAM and ubuntu doesn't detect it. I've read all the posts on this issue and I have:
1) installed a PAE kernel and made it the boot option. Output from uname -a is: Linux tensor 2.6.31-17-generic-pae #54-Ubuntu SMP Thu Dec 10 17:23:29 UTC 2009 i686 GNU/Linux
2) removed all the non PAE kernels (a post I found mentioned this if the PAE kernel doesn't sort it out after a reboot)
3) tried to install the linux server image & headers but this didn't work. I later found articles discussing how you couldn't do this under Koala anyway.
[Code]...
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