Lightdm Xdmcp Black Screen

You might be better off starting up VcXsrv in single window mode and using putty to ssh to the host with X forwarding on and then starting with 'gnome-session&' or whatever environment you use. Firewalling port 177 is the safest if you wish to have xdmcp on. No installer dialog running, no activity going on. 10 fix for boot blank screen with [OK] and mouse cursor then it transitions to a black screen with a I suspect it had something to do with LightDM. The Procedure. CVE version: 20061101 ===== Name: CVE-1999-0002 Status: Entry Reference: BID:121 Reference: URL:http://www. 2 all I see is a black screen and a cursor on the Cygwin. LightDM is the solution. I tested this on two different computers (one being a virtual machine). 18 (beta) are both resulting in a black screen on Ubuntu 16 with Kernel 4. My problem is trying to get xface to work with lightdm. 04 for user/root remote login. Using LightDM GTK+ greeter instead of the default Unity greeter allows users to theming Ubuntu login screen via GTK 3 themes, and icons. I am running the default Gnome Display Manager. I used rpi-update to update Raspbian, then restarted it. 04 comes with LightDM as default display manager. The XDMCP client cannot connect to the necessary ports. It's developed at Canonical by Robert Ancell and all contributors are required to assign their copyright to Canonical through a Contributor License Agreement that allows proprietarization. Debian 8 XRDP 設定. Stucked in your desktop/laptop ubuntu’s login screen means , you enter your password then screen goes black then login screen appears again and again in loop , here are three easy troubleshooting methods you can follow to resolve your problem. Follow $ sudo /etc/init. XDMCP protocol on port 177/UDP. There's some Change background of login screen. XDMCP is like remote desktop for linux. 5 using XWin. Für mich persönlich auch kein Problem aber die Partnerin welche auch ab und an am Laptop ist, ist nicht so firm mit dem Layout im Kopf umdenken und die Eingabe dann doch richtig zu. After a few /etc/init. 8 正式版 Make Ubuntu12. You simply get a black screen. Each of them is a different screen. failed to setup up remote access XDMCP on RHEL 7. org, the default X11 server in Ubuntu. 2007年10月11日以降の投稿は、クリエイティブ・コモンズ-表示-継承-3. The light-locker project is a fork of gnome-screensaver 3. I've worked with LightDM a lot over the past 5 years or so, so I tried a ton of different conf-file options before simply resigning to using GDM (which has terrible. Now xdmcp is working with lightdm. Another advantage of Secure XDMCP is that it allows you to access Xmanager installed PCs that are behind firewalls or private network configurations. securityfocus. SE Linux disabled, IPTables off, and my process was: yum install tigervnc-server gdm xinetd. XDMCP is integrated into X. LightDM starts the X servers, user sessions and greeter (login screen). In this article will cover the installation of X Window System, I3, and a few useful tools that can make us…. I figured it had something to do with LightDM because everytime I'd install it, the login manager would go belly-up, giving me the black-screen everyone else has reported. When I try connecting with Xming & MobaXterm in windows, I can connect, the X window comes up but it's just black with an "X" mouse cursor. xming으로 XDMCP 연결하니 그냥 빈화면이 나와서 찾아 봤더니 미. > Or is there a better way?. With XDMCP, one computer A running X11 can connecting computer B running X11, and interact with computer B as if one were physically at computer B. lightdm does not display a greeter dialog when accessed via XDMCP from a cygwin XWin server a black screen with nothing but a mouse cursor in the very middle. You might be better off starting up VcXsrv in single window mode and using putty to ssh to the host with X forwarding on and then starting with 'gnome-session&' or whatever environment you use. > listen to XDMCP requests as we want to manage X terminals with xdm > > !DisplayManager. I am running the default Gnome Display Manager. 3-1 Severity: important Dear Maintainer, After upgrade to stretch XDMCP no longer works. 前回はMultiWindowで設定しましたがデスクトップ画面が見たくなったのでXDMCPにしてみました。 ubuntu側の設定 ubuntuはLightDMというディスプレイマネージャが入っています。. This video is gonna show you how to fix the black screen issue, you might get, when booting into Ubuntu using an SSD. Light Display Manager 1. However, on connecting to the server via my Mac using Xephyr I just get a black screen. There are many different ways to login to a Linux computer. Whether or not VNC is one of those, only VNC can answer. I recently updated Arch-based Antergos Linux. After a few /etc/init. d/lightdm stop [sudo] password for ubuntu: * Stopping X display manager lightdm [ OK ] $ sudo /etc. Firstly I've found LightDM to be ok, but a lot of people, including me, have had some LightDM resolution problems - especially where dual monitor set ups were concerned. So I reverted to 15, I need a solution first. DA: 5 PA: 73 MOZ Rank: 100. While in my opinion, XDMCP server is pure CPU task. LightDM loads ok - I get a login screen, and can enter username password etc. No problem, just don't use graphical login. Default session. 04 (Precise Pangolin). 04 on sony vaio eh25 64 bit machine with nvidia geforce 410m with cuda It is not taking my drivers and so it is showing me maximum resolution=800 x 800 on typing xrandr in the terminal please help. But the actual X11 protocol connections will be made to the local port 6000+n /TCP, where n is the display-number. This is set to 0. d/gdm3 restart. 04 become Mac Lion; 操作系统各种很“二”的名字是怎么来的. Furthermore the LightDM design document specifically mentions XDMCP more than once, so it’s clearly not been forgotten by the LightDM developers. I followed the ArchWiki doc and it's strange since it didn't involve any complex configuration: Installed lightdm from yaourt (no errors). XFCE is using LightDM and we do not get a login screen. 2 Multihead setup: black/white/grey screen at start - failed detection of mirrored mode. I need lightdm because it is the only display manager that works fine with XDMCP 1024x768 screen resolution. Enable touchpad tap. I restarted my computer and I'm getting a completely black screen where my LightDM login should be. XDMCP enables other XDMCP aware systems to log in remotely. Only a hard-reset can help. Hello everyone, actually i'm using plasma desktop and i'm trying to change my DM from sddm to lightdm and i'm using plymouth, lightdm seems to start but gives me a black screen and does not show me the login screen. There are many different ways to login to a Linux computer. - Denis Nikolaenko Jul 22 at 20:19. LightDM is a light display manager with minimal dependencies. Yesterday AUR updated the Wayland package and today Gnome boots into a black screen. If the image is smaller than the screen, it will display border space on all sides as needed. I prefer the size of my new # desktops to be the same as a 'real' display - particularly when using # a nested desktop to capture screenshots. Summary; LightDM is the display manager running in Ubuntu. So I reverted to 15, I need a solution first. I figured it had something to do with LightDM because everytime I'd install it, the login manager would go belly-up, giving me the black-screen everyone else has reported. I tried to add the xdmcp enable statement in most of the conf files in the /etc/lightdm directory, but all I get over xdmcp (using xephyr) is a black screen…. To Edit: gksu gedit /etc/init/lightdm. sudo /etc/init. conf files to make sure I hadn't made any mistakes. I never get the logon screen from the RedHat box. In /etc/lightDM the only file that seems to be read is the ubuntu-mate version of the conf files. service My screen is black! Verify that your libgl / glx drivers are properly installed. Sometimes (but not always) the fans of the R9 go on an off and the card seems to emit a lot of heat. am (+2/-0) src/greeterbackground. 04LTS图形界面 【分享】Mountain Lion OS X 10. The only workaround available to this bug is to download and choose lightdm as. FreshPorts — x11/lightdm-gtk-greeter/Makefile. I confirmed the XDMCP function with Xnest, and I got the a new login screen on my xnest screen. There is still. Any ideas?. 04 ESR Since I seem to be one of the few people who use it, even with all the "thin computing" this and should be taking place. like this:. Is your getty (tty) a black screen? For those running Linux who have ever been without a graphical user interface (GUI) have most likely gotten to know and love getty's. The black screen can result from a number of things: Nothing is running on that Xnest server - i. Watch Queue Queue. The symptom is that after entering the username and password in the login screen, they are unable to get in. Please, run two commands, and post back here the full output of the second one: sudo pacman -Syu inxi inxi -MCGxxc0. A display manager can run on the same computer where the user sits or on a remote one. Only a hard-reset can help. I just now use sudo dpkg-reconfigure lightdm and select lightdm so i can login to system. You can also switch users from the XScreenSaver lock screen - see XScreenSaver#LightDM. As user "odroid", I get the desktop. Mailing list. I've discovered that when the greeter is open on the GUI console, it will not open on an XDMCP connection but will simply present a black screen. Something has gone wrong" "A problem has occurred and the system can't recover. How can i restore it so that it starts again normally without going first into the black terminal? - amirt May 15 '15 at 12:56. Raspbian LCD/HDMI auto-switch noabody Linux , Technical April 10, 2016 September 11, 2016 I initially setup my Pi2, with capacitive touchscreen, following these instructions ( Detailed Installation – Adafruit 2. LightDM loads ok - I get a login screen, and can enter username password etc. I'm trying to get LightDM to work but for some reason it just shows up a black screen when I get to the user selection screen, GDM works fine though. As you may know, LightDM is a lightweight display manager used by default on Lubuntu, Xubuntu and Kubuntu, responsable for the login screen, the management of the X servers and facilitates remote logins via the XDMCP protocol. Please, run two commands, and post back here the full output of the second one: sudo pacman -Syu inxi inxi -MCGxxc0. I've used LightDM with Plasma 5 and OpenRC in the past and it worked fine As for KDM, I've heard mixed reports but wouldn't recommend it - it's completely unsupported upstream and will be removed along with the rest of Plasma 4. I genuinely thought my entire install was hosed until I installed LightDM and realized that it worked just fine. allow and /etc/hosts. A display manager presents the user with a login screen. FS#43999 - [lightdm-gtk-greeter] white screen after upgrading. A display manager can run on the same computer where the user sits or on a remote one. conf display-setup-script=xrandr --output eDP-1-1 --mode 1920x1080 where eDP-1-1 corresponded to the xrandr display. Lightdm shows a greeter, you can enter username and password after which it bombs out straight back to greeter. 0)で提供されます。 著作権等の他者の権利を不当に侵害するような投稿、特定の個人や団体などへの誹謗中傷を含む投稿、個人情報を含む投稿など、違法性のある投稿は行わないでください。. The problem is that ubuntu does not start whit the window login password of lightdm. My humble apologies andoru, my system also presents me with a black screen and blinking cursor if LightDM is disabled and the [email protected] override used. service My screen is black! Verify that your libgl / glx drivers are properly installed. d directory doesn’t exist, then one can “mkdir” it without any worrying and then create the 60-lightdm-gtk-greeter. Some configuration with XDM is enough. Only if that worked and the screen goes black. But the actual X11 protocol connections will be made to the local port 6000+n /TCP, where n is the display-number. The problem is that when I try to load the latest kernel available, 5. enabling XDMCP in XFCE w/ GDM (VNC Server in XFCE) is to enable XDMCP, but all info I found is about KDE or Gnome or even just X what would be the way in XFCE. But upon rebooting, I ended up with a black screen. [security] DisallowTCP=false [xdmcp] Enable=true. Once it opens you should see similar to the following screen. XDMCP画面 † 初回接続で下記画面が表示される. (Get patterned screen with the X cursor). The System I use 2. In the X Window System, an X display manager is a graphical login manager which starts a session on an X server from the same or another computer. The LEDs were all on on the board except for the OK LED. There is still. png you define in /etc/oblogout. startpar: service(s) returned failure: plymouth … failed! On boot (or reboot) a black screen is displayed. This is different from the nomodeset problem as I do not have to use that kernel parameter with Budgie/LightDM and using it anyway did not solve the problem. It was slated to bring minor improvements to the Ubuntu 17. Which means that login screen at VNC will look bit different from one on LTSP's thin clients. linux screen goes black. First, install lightdm if it is not installed yet: # yum install lightdm lightdm-gtk Then, disable gdm service and make the lightdm service be started by systemd # systemctl disable gdm. Only if that worked and the screen goes black. I didn't try nouveau. I consult for the NSA. Most Linux admins work from shell and there is not much requirement to connect to the X window. I want connect from remmina to jessie on another system via xdmcp but only black screen happend. No login screen (gdm) is ever displayed. To avoid this problem, you have to use an alternative display manager (other than ‘gdm’) and desktop environment. A page on how to switch back to lightdm if you've made gdm your default display manager. This quick tutorial is going to show you how to capture LightDM Unity Greeter, the log in screen, in Ubuntu 14. button on the prompt screen and select. Local and remote display management. Now this doesn’t mean that XDMCP support will definitely return to Ubuntu. The default greeter in Ubuntu is Unity greeter. lightdm/gdm/xdm) This task depends upon. This is simple guide about enable xdmcp service on Ubuntu 12. lightdm is well documented and can replace gnome. I am doing this because I wish to see the entire CentOS desktop remotely, and XMing/xdmcp has been working well for me on other Linux distros, and I prefer it over vnc. Fix black screen after Nvidia drivers in Ubuntu October 23, 2015 February 11, 2016 twistedtities I have Xubuntu 14. Description of problem: The LightDM login screen only shows active control after the screensaver closes; the rest of the display is black. but then just showed a black screen with a flashing cursor. Ctrl-Alt-F7 returns me to the black screen with cursor. The System I use 2. Using Xmanager to connect to remote CentOS 7 via XDMCP Gnome in CentOS 7 tries to use local hardware acceleration and this becomes a problem when trying to connect remotely using XDMCP. I've used LightDM with Plasma 5 and OpenRC in the past and it worked fine As for KDM, I've heard mixed reports but wouldn't recommend it - it's completely unsupported upstream and will be removed along with the rest of Plasma 4. It performs the authentication properly but after a short delay, the LightDM login greeter disappears, display goes black, and then after maybe 0. Thinstation XDMCP Access. Probably a dumb question, is there anyway to simultaneously change login screen and desktop backgrounds? I have found in some forums to change login screen manually but I can't find anything that automatically changes according to the wallpaper. I have run into a problem again where I am unable to start a session using XDMCP. I don't like autologins, but when I created a new user account and commented out the "autologin-user=lbuntu" lines in lightdm. XFCE is using LightDM and we do not get a login screen. Asks the driver not to clear the background on startup, if the driver supports that. requestPort: 0 > > You then need to assure also that hosts login are accepted with the > following line in Xaccess: > > * #any host can get a login window > > In my set-up, I wanted to have fvwm2 automatically used when connecting via. Lightdm definitely comes up with a login screen. Providing XDMCP service itself is not hard. When run systemctl start lightdm, the screen turns black, and I see a cursor in the top left that does NOT blink. Twice in the last two weeks DI would not load (into lightdm). I will inverstigate this further, `startx` works normally for me on a different TTY — this should also be the case for you. A display manager, or login manager, is typically a graphical user interface that is displayed at the end of the boot process in place of the default shell. Summary; LightDM is the display manager running in Ubuntu. Right after logging in through lightdm, I get the black screen (never saw the desktop as root). > listen to XDMCP requests as we want to manage X terminals with xdm > > !DisplayManager. But the actual X11 protocol connections will be made to the local port 6000+n /TCP, where n is the display-number. In this article will cover the installation of X Window System, I3, and a few useful tools that can make us…. Mailing list. Option -fullscreen will run Xephyr in full screen mode. My one other normal user now existing gets the black screen as does root. Nvidia GPU Solution suggested by chbota does not work for me (lightdm is unable to start even after. Any ideas?. This is on a multiseat system with three external AMD video cards and the one built-in Intel one. The light-locker project is a fork of gnome-screensaver 3. After the last upgrade, lightdm give a black screen, and i have to enter in console with ctrl alt f1 to start the server x manually. Other X servers open different screens for different monitors connected to the computer. - xdmcp server in lightdm does not start + xdmcp server in lightdm does not start; lightdm doesn't listen on :177 Robert Ancell (robert-ancell) wrote on 2013-10-14 :. This problem does not occur when switching the greeter from lightdm-gtk-greeter to slick-greeter. I need lightdm because it is the only display manager that works fine with XDMCP 1024x768 screen resolution. 4, & Fedora 12. Für mich persönlich auch kein Problem aber die Partnerin welche auch ab und an am Laptop ist, ist nicht so firm mit dem Layout im Kopf umdenken und die Eingabe dann doch richtig zu. The way to get the screen back from black is to press Ctrl-Alt-Delete on the Windows host which brings up the Windows 10 Lock/Switch Users/Sign Out/ screen. The XDMCP server is set up with XDMCP enabled (listens for connections - UDP port 117) Someone starts an X server, and either implicitly or explicitly either queries a specific XDMCP server, or broadcasts to ask whether there are any XDMCP servers on the subnet. Start Cygwin Bash Shell and issue startxdmcp command: startxdmcp. I figured it had something to do with LightDM because everytime I'd install it, the login manager would go belly-up, giving me the black-screen everyone else has reported. for choosing the default session, setting your account to auto-login, etc. easily fixed. I then stumbled over an article I thought was worth a try, as all other methods had failed. # # Define some will known screen resolutions - these are used to check # the size of the desktop window later. Switching to lightdm resolved this. d/gdm3 restart. LightDM is the display manager running in Ubuntu up to version 16. 1 (ofcourse one needs a working xdmcp provider, ie. There is no error, but a warning and I don't know if xrandr has been executed. I'm having an issue where whenever lightdm loads, it just comes up as a black screen. I figured it had something to do with LightDM because everytime I'd install it, the login manager would go belly-up, giving me the black-screen everyone else has reported. unity-system-compositor -special. However, on connecting to the server via my Mac using Xephyr I just get a black screen. conf on one of the bad machines. Seriously panicking!. Is there a way either to 1) configure lightdm so that both screens have the background correctly set for the login screen, or 2) if lightdm can't set the second monitor's wallpaper, pre-set it in some other config file so that it has the desired wallpaper regardless?. This is on a multiseat system with three external AMD video cards and the one built-in Intel one. I successfully tested both methods with a Raspberry Pi 2 + latest Raspbian Jessie (v4. Using XFCE4, I'm trying to enable XDMCP for it. I am AMD users since 2010, I have 2 PCs and 1 laptop with AMD, everything was fine and recommended AMD because it did not give more problems using ubuntu or derivatives, until version 16. I installed Ultravnc. If you enabled VNC using YaST, it will enable XDMCP automatically, but you must restart the display manager for it to take effect. The login GUI still. If the image is smaller than the screen, it will display border space on all sides as needed. 0 or unix:0. For this reason, many choose not to use it as their default display manager on Arch Linux. The design of the xdm command was guided by the needs of X terminals as well as the X Consortium standard XDMCP (the X Display Manager Control Protocol). In the X Window System paradigm, the server runs on the computer providing the display and input devices. X -indirect -nolisten inet6 or Xephyr -query Actual results: black screen or black window (with Xephyr) Expected results: GDM XDMCP chooser Window Additional info Since kdm has been removed in RHEL7, gdm is the only available choice for XDMCP setups. GitHub Gist: instantly share code, notes, and snippets. crashoverride wrote: Ubuntu patches are causing it. The AMD GPUs show the login screen correctly. My setup works with unity/gnome but does fail with the pantheon session. Precise uses the LightDM, so this method also works on ubuntu 11. Here's its log:. If you say "No" (and don't enable graphical login), then when you initiate an XDMCP connection with Reminna (in Step 8), you'll only get a black screen and nothing happens. 04 lightdm xdmcp or ask your own VNC over lightdm results in blank screen. ) A lot of Linux-support customers have contacted us recently asking to fix their Ubuntu laptops and workstations that suddently stopped working. > Or is there a better way?. Only if that worked and the screen goes black. LightDM's dm-tool command can be used to allow multiple users to be logged in on separate ttys. I'm using Xming on the local Windows machine, but every time I connect to the remote server all I get is a gray window with the X cursor. The most awaited Debian based Operating system Ubuntu 16. Hello Linux Geeksters. Every time my screen locks (either manually using xflock4, or automatically after a specific period of time) and I login again, the colors on my screen are all weird and glitchy, I can't really explain it. Trough this, I want to be able to login trough XDMCP with my elementary install. I successfully tested both methods with a Raspberry Pi 2 + latest Raspbian Jessie (v4. The most user visible aspect of the display manager is the login screen, however it also facilitates remote logins using the XDMCP protocol. If the login screen is created again and again and unresponsive, you are trying to access GNOME Shell on the remote machine. Hello Linux Geeksters. I'm using Cygwin on windows and Linux RH 9. But every time I reboot I am redirected to a black screen. I have restarted the lightdm service and rebooted the server. Make sure you have lightdm enabled via systemctl with systemctl is-enabled lightdm. 24-generic and 4. Ctrl-Alt-F7 returns me to the black screen with cursor. After chrooting, I discovered the issue was caused by LightDM (that I use with Mate) which now refuses to start properly. securityfocus. Furthermore the LightDM design document specifically mentions XDMCP more than once, so it’s clearly not been forgotten by the LightDM developers. xdmcp – Ubuntu Wiki. 집에 있는 녀석은 Lubuntu이니 LXDE인데. Fix black screen after Nvidia drivers in Ubuntu October 23, 2015 February 11, 2016 twistedtities I have Xubuntu 14. If the image is smaller than the screen, it will display border space on all sides as needed. 6 when I tried to install the drivers. 0 or unix:0. This video is gonna show you how to fix the black screen issue, you might get, when booting into Ubuntu using an SSD. LightDM is the default greeter/window manager for Ubuntu which they set to use their default environment. # It looks like -multiwindow mode triggers the static color visual in both the internal x2go xserver and the external vcxsrv # But it also looks like -multiwindow mode is how x2go client allows resizing of the remote desktop. When PTC X/Server is running on a system with a NVIDIA video card and has both Hardware Acceleration and Direct Rendering enabled, a request to use direct rendering from a NuTCRACKER Platform application using OpenGL results in nothing but a black screen. This article is talking about raspbian in raspberry pi and there is lightdm (X Display Manager) in raspbian running by default. The request and the start of the session is handled by the XDMCP, which stands for “X Display Manager Control Protocol” and is a network protocol. I installed Ultravnc. When I power on the Pi, I see the colored rainbow screen, and then all of the scrolling text, but after that is finished the screen goes black rather than showing the login. In the top right of the Lightdm window, you have an icon you can click on who allow you to select the desktop environment or the window manager you want from the ones who are installed. I don't remember how can I restore the boot to start lightdm automagically. 4, & Fedora 12. How to fix black screen after login in Ubuntu 14. I tested this on two different computers (one being a virtual machine). Most of us are already familiar with 'gdmsetup', which was used to tweak the 'Login Screen' settings in previous versions of Ubuntu, e. Remote sessions via XDMCP. Security reasons to abandon XDMCP are weak reasons: we are usually able to manage security (SSH, iptables, awareness) and we are requested to be responsible. I’m pretty sure the two are related. With XDMCP, one computer A running X11 can connecting computer B running X11, and interact with computer B as if one were physically at computer B. for choosing the default session, setting your account to auto-login, etc. sudo apt-get install lightdm. button on the prompt screen and select. I enabled XDMCP in my lightdm settings (trough adding [XDMCPServer] enabled=true there). mine is nothing but black, no matter what OS/application I try. 5s, the greeter reappears, asking for a login again. Even before I could enjoy the new features of GNOME 3. The GNOME Display Manager (GDM) is a program that manages graphical display servers and handles graphical user logins. Are these the right way to make this work with the Stretch version of Raspbian. Some Ubuntu users are reporting LightDM errors when using a SSD: about half the time when starting the computer, LightDM (the default Ubuntu display manager) doesn't load correctly and only a black screen and a blinking command line cursor shows up. Now if I pass the command systemctl. I want to change some of the grid Images and add a couple non steam games but You cant do that from the big picture mode :( How can I run steam on steamOS NOT in big picture. The login GUI still. LightDM is a cross-desktop display manager that aims is to be the standard display manager for the X. Please, run two commands, and post back here the full output of the second one: sudo pacman -Syu inxi inxi -MCGxxc0. - xdmcp server in lightdm does not start + xdmcp server in lightdm does not start; lightdm doesn't listen on :177 Robert Ancell (robert-ancell) wrote on 2013-10-14 :. As user "odroid", I get the desktop. (Get patterned screen with the X cursor). I will suggest to the maintainer to correct this in the package, but for all those with lightdm already installed, do the following:. After the last upgrade, lightdm give a black screen, and i have to enter in console with ctrl alt f1 to start the server x manually. "sudo reboot"), but nothing gets displayed. There's some Change background of login screen. My one other normal user now existing gets the black screen as does root. (if you've used the chattr trick above, you should be fine). xdmcp – Ubuntu Wiki. But the actual X11 protocol connections will be made to the local port 6000+n /TCP, where n is the display-number. Setting up /etc/hosts. Any ideas?. IRC channel. 04: select gdm3; Just select the one you want and press enter to move ahead with the installation procedure. How to solve slow Thunar startup. As you can see, lightdm is back but there is not configuration or no pictures in the login screen. so I can use current lightdm and wait for CentOS. com> wrote: > X works I just needed to press ctl-alt-f1 to. Most of them are text based and other graphical ones are slow and create lots of network traffic. I'm having an issue where whenever lightdm loads, it just comes up as a black screen. conf file is coming up with no text in it. All I have is a functioning mouse arrow, so when clicking in the centre of the screen and then typing the login password (without actually seeing anything at all on the screen. 前回はMultiWindowで設定しましたがデスクトップ画面が見たくなったのでXDMCPにしてみました。 ubuntu側の設定 ubuntuはLightDMというディスプレイマネージャが入っています。. When I power on the Pi, I see the colored rainbow screen, and then all of the scrolling text, but after that is finished the screen goes black rather than showing the login.