Ubuntu :: How Can Laptop Screen Be Unknown Monitor
Aug 19, 2010
Mine is, ever since I installed the (wrong) opensource video driver for my Ubuntu 9.04 & Lenovo ThinkPad T41 (the one model, imho, they should never have let out the door!), uninstalled it by far-less-than-recommended means (ie, I used Synaptic and sudo apt-get remove and apt-get purge). End up is now my screen has a max resolution of 800 x 600, and Display panel insists that this laptop's screen is an "Unknown" Monitor.
Any tweaks to /etc/X11/xorg.conf (adding vertical refresh and horizontal sync rates for example) has resulted in its own weird behavior. On having my password accepted at login, there's a half-second of white that "rolls" over the screen horizontally. The next thing I see is a diagonal broken streak of white about 2 1/2" down from the top of the screen and 3 inches in from the right-hand side. The next thing I see is a buzzed,jagged rendition of my normal desktop. Nothing at all is clear, and the jags seem to redouble themselves the further one scans down on the screen. The only thing one can do in this situation, and I've done so enough times to know, is a hard reboot (power button for ten seconds or however long it takes).
And as I don't rate sh*t for a shilling on the Ubuntu forums, and as Google has been worse than useless every time I search for problems as detailled as these (it's like K-Mart: it has what you want until you go to look for it!), and as my one self-styled "Lunix-Geek" friend (now in the UK) has only briefly battled the xserver-xorg beasts, I'm coming here to see if anyone knows something else I could do besides bite the bullet, say goodby to my accumulated goodies, and reinstall Ubuntu.
I have an acer aspire one netbook and in display properties it says the monitor is unknown. The trouble is that the screen is widescreen (16:9) but it has it as (4:3)so the screen is sort of stretched. Is the a terminal command as another way round this or how can i get the screen recognised?
I installed Ubuntu 9.10 on an old PC, Dell dimension L550r, PIII500, 512M ram. There is a problem that monitor is not detected. I could logon as 'xterm' type, but the window size is only 1/4 of screen. When I logon as 'GNOME', it seems screen is not refreshed. media player window is blank, but can see a static image if minimize and restore window. Even terminal window is blank.
Go to "System"->"Preference"->"Display", shows "monitor unknown". I can not find file /etc/X11/xorg.conf, is this normal? xrandr command output: Screen 0: minimum 640x400, current 1024x768, maximum 1024x768 default connected 1024x768+0+0 0mm x0mm 1024x768 60.0* 75.0 70 832x624 75.0 .....
I am having problems getting my external monitor to work. When I plug in the monitor, both the laptop screen and the external monitor go black. When I unplug the monitor, the laptop screen works again. When I startup with the external monitor plugged in, neither screen works or teh computer hangs or something.
I have had the external monitor going on a couple of occasions. I did manage to configure my monitors through System Settings > Display. I turned off the laptop monitor as I just want to use the external. But after rebooting, things didn't work.
I installed 10.04 on new computer for office, got everything working great at home with old 15" monitor, took to office hooked up to Multisync 97f monitor, and not recognized 640x480 is best. I Have onboard Geforce 6150se/ 430 and have the newest driver installed from Nvidia 256.44. I tried to install everything that said multisync in synaptics but screen jumps around when trying to click on anything because it don't fit right.
The laptop is a samsung X30 and i spent days trying to install ubuntu 10.04 unsuccesfully as there was no clear picture on the screen, just a black and purple splodge. I then saw a post on these forums discussing the default resolution of ubuntu and how it is incompatible with some machines so via VGA cable i connected it to my TV and sure enough i could see what was going on and finished the installation process. I assumed that once ubuntu was fully installed i would be able to change the resolution using the monitor preferences but none of them worked. I am now faced with the problem that unless plugged into the TV i have no picture on my laptop, does anyone know why my laptop screen wont work with ubuntu and how
I'm a new user and recently installed ubuntu on an old samsung laptop, during the installation process i couldnt see anything on the screen and came to the conclusion that ubuntu's default resolution was different to that of the laptop screen so i plugged it into my TV and sure enough it worked however i still only have a picture on the tv, ive tried all the resolutions available in the 'monitors' box but nothing, does anyone know how to fix this?
I am using DELL Latitude E5510 laptop with docking station. The problem I am facing is I am not able to switch screen b/w monitor and laptop screen, I tried with fn+F8 key. Actually I have installed open SuSE11.3(Linux) operating system.
I am now using Ubuntu 9.10. The prob is I am not able to increase the resolution of display. It is showing only 800 x 600 display. While trying to increase the resolution it is showing "Unknown Monitor". So, how can I detect the monitor so I can increase the resolution of my system.
Where the script is for Gnome 3. When I plug the HDMI cable, the desktop expands to include both, but disables the backlight on the laptop monitor. I have to restart gdm3 or the laptop for the brightness control to bring it back up. First, why would it turn brightness to 0, and how do I change the default of that so it stops. I plug and unplug the HDMI regualarly while I wait for a new desktop and the laptop has to pull double duty.
I just switched from Ubuntu 14.10. It never blacked out a screen on plug in or removing. That means that there must be some way to do it, however, it used Unity and this is Gnome 3.
I installed KDE. It works as well. I will use it for now, but would like to get Gnome 3 to work. My default is gdm but I think I saw I can switch it to kdm.
I am running Debian 8.3, and I'm running Gnome 3.14.1.I have an external monitor plugged in with HDMI, and while Linux is loading both screens are on duplicate. Once the GUI kicks in, only the external screen works, so I have to enter my password blindly. Then, I open a terminal and run
I have an HP Pavilion dv9000 which I would like to use completely with any Linux OS. I have tried to install Linux Ubuntu 10.04.1 but it appears that it doesn't recognize the external monitor and ends the installation. I have a clean hard drive that I could install but I do not know which of the two drives I should replace. I can only get into windows in safe mode and I would think this may have something to do with the problem, don't no.
I have a laptop and an external monitor connected via displayport. I can configure both displays via settings with correct resolution and arrangement. However, this configuration is not sticking, and every time I shut down the laptop or close the lid I will need to fight with black screens and more to bring the same configuration again. Basically, it seems that the monitor is "stealing" the primary role to the laptop's native screen (I have it configured as secondary, but also being primary the configuration gets messed).
After many trial & errors, this is the routine I have found to make things work every time I boot / awake the system:
1. Boot. Laptop's display shows the booting sequence. 2. When the login screen should appear, laptop's display goes black, monitor shows background. 3. If I press F9 to increase brightness, the brightness icon appears in the monitor, but it is stuck at the minimum. 4. The only way to leave this point is by pressing F7 (project screen) and then F9 again to increase brightness. Then the laptop's screen does light up.
This is when I'm lucky. Sometimes the configuration goes mad and I get mirrored displays and different resolutions, without touching the settings myself. Also, if I unplug the displayport I run the risk of getting stuck with a black screen in the laptop, without any way of recovering the GUI other than rebooting (Ctrl Alt F2 will still show the command line screen).
My system is Debian 8 testing up to date, running in a Lenovo T430 with Intel components. I'm not sure the monitor is relevant here, but in any case it is an Eizo CS240.
I am facing problem with the fresh installation of Fedora 11. (I have moved from Fedora 9). When I try to view videos on ..... or use the Cheese Webcam Booth, I get blurred lines on the screen and I am unable to see any video or pic.
Also I noticed that the when i go to System > Preferences>Display, it shows me UNKOWN MONIOR.
However, if I got to System>Administration>Display and enter the su password, it shows me correct monitor and the graphics driver.
I am not sure if my original is related to the Unknown Monitor.
I also tried to install Nvidia driver but it crashed the xserver and I had remove the driver.
My Monitor is LG 700E and Graphics card is from intel. as I am not able watch any video.
I have an Asus z9100 laptop with an Intel 855GM integrated graphics chip, which is running Karmic (the purpose of the laptop is to be a MythTV frontend so my understanding is that it needs to run 9.x in order to connect to the MythTV 0.22 backend - I have installed and configured this using the installable Mythbuntu package) and the laptop is subject to this bug which causes random freezes:
[URL]
So, following advice for similar freezes I've seen, I have added the following options to my grub menu.lst on the kernel line:
nolapic nomodeset
and I have edited xorg.conf so that it makes use of the vesa driver instead of the Intel driver. This results in no freezes and if I wanted to watch Myth on the laptop screen I'd be squared away. However, the laptop has a damaged screen so the point was always to output the signal to an external monitor via its VGA out.
When I attach the external monitor and boot with the setup as described, the external monitor is never detected. But I noticed that if I remove the "nolapic nomodeset" from the kernel boot line, it is detected. However, signal is only output to it during the earliest part of boot (when the Ubuntu logo is in the center of the screen before the full-screen graphic with the animated progress line), after which the external monitor goes black and all the display output goes to the laptop screen. The external monitor power button is still lit up green as if it has been detected and is receiving signal, but it's just a black screen.
get the signal out to the external monitor after the initial part of the boot process, using the vesa driver? Here is the current state of my xorg.conf:
Code: Section "Device" Identifier "Configured Video Device" Driver "vesa" EndSection
I have a netbook (Acer Aspire One) I'm running Slackware 13. and usually, I prefer to connect an external monitor. When I switch my machine on with the monitor connected, the display is duplicated on both screens and since I just want the netbook's screen to be off and only see the display on the external monitor, I can doxrandr --output LVDS --off
Great! However, it's a hassle to do this every time I log in and I'd like to automate the process if possible. I did some googling and I found that if you want to automate xrandr commands, you can put a script in /etc/X11/Xsession.d/ (see this). I wrote the following script to automate my xrandr commands and since the Xsession.d directory didn't exist, I tried creating it. The script was called 45custom-xrandr_settings, as the one on the RandR wiki is called the same.
Code: #!/bin/bash # Check whether the external monitor is connected
My software and hardware information are as follows. I have Fedora 12 and KDE 4.4.5 installed on a Dell Vostro 1500 laptop. I believe it's a 64 bit processor; it's an Intel Core 2 Duo CPU. The external monitor is a Dell as well.
My problem is that my system does not seem to be detecting an external monitor that I have connected. Everything else is working just fine; however, I would like to have the option of attaching an external monitor. When I plug the external monitor into the laptop, the external monitor remains black and appears to be in power save mode. The results of xrandr -q (with or without the external monitor attached: it doesn't appear to change) are as follows.
Code:
How can I get my laptop to recognize that the external monitor is even connected? Let me know if I can be more specific or provide additional details.
I recently installed Debian, using the amd64 Network Install .iso. I'm using XFCE4 as my desktop environment, and everything is working well... on my laptop's screen.
My desired setup is to have my laptop sitting on a well-ventilated shelf, closed, and to have an external monitor be my main monitor. I want this because I'm using my laptop as my "home" computer, so it never moves, and I don't like the keyboard/trackpad. My laptop has a VGA output, and I can get my desired setup on my Windows partition (not stating a preference ; just that the hardware CAN do what I want it to).
I've been working my way around the Internet for a few days, now, and I've got the commercial NVIDIA driver installed. If I run sudo nvidia-config --twinview I can get my external monitor to be part of the display, which is great, but it's part of a dual-screen monitor setup, which is not what I want at all, because (a) XFCE's multiple virtual desktops are good enough for me and (b) my graphics card is integrated, and I'm trying to squeeze every drop of performance out of my laptop that I can (1 gig of RAM; the less that my graphics card eats into it, the better). Plus, it'd be annoying to accidentally drop something on my laptop's screen, and then have to dig it out of the shelf in order to undo it. I'm not saying that I'm consistently clumsy, but I'd eventually end up doing it.
I just installed Ubuntu 10.10 on my Dell Latitude D430 that I use at work. I have it on my desk docked going to a Dell LCD Monitor. When I go into the monitor set up it says Unknown for the monitor and Laptop for the actual laptop display. Also, I have very low resolutions for the "Unknown" monitor.
I am trying to resolved this issue so that I have better resolutions on the external monitor and then I can try to extend the desktop between 2 screens.
I found something online about adding the intel PPA and I did that, but now what. There is no xorg.conf that I can find for 10.10.
I gave up on ubuntu few months ago and now I'm giving it one more chance since I am already sick of Vista. Okay, I researched all over google for specific problem and I think there are few possible problems such as not recognizing Monitor (Polaroid 1911-TLXB) or missing driver (Intel 82G33/G31). I have DELL Inspiron 530. Im stuck with 800x600. I did try SYSTEM>ADMINISTRATION>Hardware Drivers and it searched and found NOTHING.
I have a new Television that is connected to a computer running Ubuntu 10.04 with a VGA cable. It works, but the only resolutions I can use are 1024x768, 800x600 and many lower ones. Since the resolutions are 4:3 and the television is not, there are big black areas on the side. I can chose format - wide screen on the television, but then the proportions are wrong. And when I play a movie, it's usually very small with big black areas on the edges.
I got rid of these drivers, I'd used them if they'd work, but they just made matters worse.Any ideas what to do? Maybe upgrading to 10.10 would help? But I'd prefer to stick with the LTS versions if possible.
I'm trying to upgrade my sister to natty, but it wont boot properly unless I use nomodeset. It didn't need this in maverick, and she doesn't need any proprietary drivers, as she only has onboard laptop graphics (intel mobile 4 series I think..) So when I boot it into the LiveCD the resolution is wrong, so I go into system > preferences > monitors but it wont let me change the resolution as the monitor is listed as "Unknown" I also tried LinuxMint 11 (Katya) but it was the same (it is based on ubuntu anyways so it's not surprising.)
recently found a post that had the same plymouth booting to text only issue i was having so i folowed the instructions and loaded the script.when it got to the resolution part i put in 800x600 24bit as i have a acer netbook and i think the default is to large,when i rebooted my plymouth came up yaaaa prob solved but the plymouth was very wide and poor quality,also before the pymouth the screen turned pixely and when the desktop came on it was very poor qualilty,i went to system preference monitor and it says unknown and none of the opetions there are available to me,i used terminal and tryped x{somthing} for checking minimum and maximum and it said failed to load.what can i try,the resolution now is ugly and wayyyyyyy to big for my little netbook.
I have never used Linux always windows so heres the problem the display only has 2 settings 640x480 and a smaller one and it say unknown monitor. I installed the drivers in hardware driver in systems I'm running Ubuntu v 9.10 if that matters and the video card is a Nvida mx440.
The day started as usual until I got the very bright idea to install Ubuntu. A new OS along side W7, that sounded great. I checked some guides on the Internet, it was all very straight forward. Install it and Grub will show you the OS:es when you boot up. I installed Ubuntu, rebooted. After the BIOS messages the screen goes blank and my screen on-button begins to blink, as if trying to find a signal, I press enter, it reboots instantly. After BIOS messages I get to a screen that says "GRUB error: uknown filesystem grub rescue>"
I've looked through everything here and nothing works. I've tried to fix the mbr-thingy using Windows Repair and even though it says "one partition was updated with new boot-thingy" when I reboot, I get into that very same grub rescue. I think my setup has something to do with it. I run RAID0 (2x360Gb hard drives), first having C: at 50Gb and then the rest as F: for programs and such. What I did was that I shrunk the F: part and then used that as partition for Ubuntu. Also please have a look at these screenshots, my partitiontables and such seems completely wacky to the raid: Where should the boot-loader go? I'm very, very new at this. I've had Ubuntu Netbook remix on my netbook for a time but still treat me as an utter beginner.
I am using Ubuntu Server and would like to recieve an email once a day listing mac address's that have requested an ip address that are not in my list of known mac address's.
lookup=`grep $mac /root/dhcp.macs`
#This does not work as the first entry mac1 will be okay but mac2 and mac3 will not
#It will try to use mac2 as the file to look in which won't exist
#I need to make it loop through for each line of the variable and add that to the lookup value diff $mac $lookup
#I think this should differentiate known from unknown if i can get a lookup value
I'm playing with dual monitors. I have an NVIDIA GT220 set up so that my monitor and my TV are running as extended desktops. Everything is working well enough, but there is one annoying bit I've noticed:
If I'm watching ..... on monitor 1 in fullscreen and working on monitor 2, clicking anything in monitor 2 kills full-screen in monitor 1. Is this something that can be fixed somehow or is it a hardwired "feature"?
I am having problems with the refresh rate if the screen. In the refresh mode of the monitor in the monitor options have only one option 60Hz. I have LG 24 + ATI Radon 3870, and have already installed the ATI driver via Ubuntu download center.
I have windows vista. i tried installed linux-ubuntu 9.10 but not knowing after a point on how to proceed further, i quit half-way. so my partition (14 gb)remained wasted. i tried installing again in a new partition and got it done. from my newly installed lunux, i tried to delete that 14gb partition. and now when i restart my laptop, i get this error :
I've just installed OpenSUSE 11.2 on a new machine. Because I was still using another machine as my main box while building the new one, the monitor attached when it was installed has a resolution of 1280x1024 @ 77Hz. I've now moved it to be my main machine and the monitor is a widescreen 1680x1050 @ 60Hz model. When I boot it normally the screen fails to come up - even GDM doesn't show. If I boot in failsafe mode the system comes up fine, but in 1280x1024 mode. The 'Configure display settings' icon shows the monitor as 'Unknown'. Couple of things I tried:
1) Switched to runlevel 2 and logged in as root. Ran Xorg -configure and looked at the xorg.conf.new that was installed, but it just had generic info for the monitor:
[code]....
2) While still in runlevel 2 and logged in as root I did a startx. This brought up the X display in 1680x1050 ok, and clicking on the 'Configure display settings' icon showed it had correctly identified my monitor and had set the size and frequency correctly.
3) Given the results of (2), I then tried logging in as myself in runlevel 2, did startx again, but this time the display failed to come up again.
