OpenSUSE :: Root Trying To Open Flashplayer In KDE Getting Cannot Open Display
Feb 18, 2011
We have a digital signage appliance built on SUSE 11.3 with a LAMP server that uses the flashplayer application to play a .swf file from localhost. It is a AOpen GP7A mini pc that has the nVidia drivers loaded. We have lots of customers that have been running the exact same system for over 6 months (we image the drive for each sale).
For some reason, my last customer is seeing the following problem shown below, and this linux configuration is way over my head. Everything else is working (local LAMP server is working, communicating with our production servers to get information works, etc). I have verified that it is screen 0 that is running (at least it shows with Ctrl-Alt-F7). I thought that it may have occurred because of updating the software with zypper up. I had the customer rebuild from the image being careful not to upgrade the software. The result was the same. The pc is a newer version compared to my bench pc, but there are multiple other customers running that same version just fine. So I am not sure if it is
The command is issued by a php script that is run in a root cron job. As I said, it works great on all other customer pc's including my bench system. I also tried to execute the command on a ssh terminal as the root user with the same result. I also upgraded my bench pc and it still worked properly.
The command being executed is sudo env DISPLAY=:0 XAUTHORITY=/home/svision/.Xauthority flashplayer http://localhost/flash/sign.swf &
the result (when run in terminal) is: No protocol specified (flashplayer:15077): Gtk-WARNING **: cannot open display: :0
I've been searching for a permanent solution for some time now, but the threads containing the same error message never seem to be about the same issue.I want to:I'm not trying anything fancy, all I want to do is open a write-protected file with gedit as root, like so:
Code:
# sudo gedit /usr/bin/deadbeef
..but every time I try, no matter the file, I get this error message:
Code:
(gedit: [process #] ): Gtk-WARNING **: cannot open display
I already know: I can circumvent this by going:
Code:
# xhost +local:root # sudo su # export DISPLAY=:0.0
I just upgraded from 10.04 to 10.10.After the upgrade I can't open any GUI programs running as root.
Or using gksu I just get the password prompt and then nothing happens.Same thing if running from the System->Administration menu.This is the same for all programs, not just Synaptic.Any idea of how I can debug this issue?
I installed Open Office 4 on Debian 8 but when I run the program I get this error message.
root@localhost:/home/paul# openoffice4 No protocol specified No protocol specified /opt/openoffice4/program/soffice.bin X11 error: Can't open display: Set DISPLAY environment variable, use -display option or check permissions of your X-Server (See "man X" resp. "man xhost" for details)
Open Office works fine when I run the command "startx" in the Konsole but so far I haven't been able to configure it.
For example, the gparted application menu item doesn't work; using it means that there is almost no filesystem support. The only way to get it to work is to open a terminal, run 'su -', and then open it from there.As another example, I tried creating a nautilus script to open files as root with a command like this:
Code:
for uri in $NAUTILUS_SCRIPT_SELECTED_URIS; do gnomesu -c "gnome-open '$uri'" done
When I try using it, it just fails. Typing out the command in the terminal gives this (tested on a text file):
Code:
No protocol specified (gedit:13672): Gtk-WARNING **: cannot open display: :0
I'm pretty sure the problem is that it's granting privileges, but not using the full root environment, or something along those lines.
I was trying to remotely log in to my desktop which uses 11.3 from my laptop via ssh. For some reason I get an empty field for the command echo $DISPLAY. and as a result an xclock command results in error: can't open display. I tried to set it to localhost:10.0 and I get: Error: Can't open display: localhost:10.0
I've tried :0.0 and I get: Invalid MIT-MAGIC-COOKIE-1 keyError: Can't open display: :0.0 ssh used to work about a week ago before I performed various security updates. I was wondering what' the solution to this. I checked the /etc/ssh/sshd_config file and ssh_config file both have X11 forwarding on. Can anyone with more experience out there give me any ideas?
I recently installed opensuse 11.4 on a remote server. It has GNOME installed as a desktop. The problem I am experiencing is that when logged in through VNC, most of the GUI apps are not functioning, especially ones that require root privs. Example: The Add/Create users context does not function. After you supply root pw, nothing happens. If you launch it from a terminal, you see this:
jjmuw@g01:~> xdg-su -c /sbin/yast2 users Xlib: extension "RANDR" missing on display "::1:1.0". No protocol specified No protocol specified
[code]....
(y2base:4872): Gtk-WARNING **: cannot open display: ::1:1.0
Followed by a hang. This is also affecting things like the Xen configuration contexts (creating/managing VMs).
Whenever i try sudo gedit I get: Cannot open display: Run 'gedit --help' to see a full list of available command line options. how I can open gedit as root.
After upgrading GNOME to 2.32 in my openSUSE 11.3 x86_64 running graphic applications with sudo is impossible. (that means it worked before upgrading GNOME)
Code:
etam@etam-laptop:~> sudo xeyes root's password: No protocol specified Error: Can't open display: :0.0 From /etc/sudoers:
Code:
Defaults env_keep = "LANG LC_ADDRESS LC_CTYPE LC_COLLATE LC_IDENTIFICATION LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER LC_TELEPHONE LC_TIME LC_ALL LANGUAGE LINGUAS XDG_SESSION_COOKIE XMODIFIERS GTK_IM_MODULE QT_IM_MODULE QT_IM_SWITCHER DISPLAY" Some interesting facts:
Gnome Forum have told me that changing the appearance of gdm I run: sudo -u gdm dbus-launch gnome-appearance-properties but I get this error: (Gnome-properties-Appearance: 18 047): Gtk-WARNING **: can not open display:
What i am i doing wrong? i download these very good app's from yast and at times i run into a problem when you click on the app and it looks like it wants to open,the application's icon is on the bottom panel and the icon is bouncing up and down where there cursor is and then eventually it disappears.Is it timing out?
I have the following scenario that doesn't seem to work normally. I have a windows 7 pc from which I am using putty to connect to my other linux servers (all running redhat 5 and 6). So here is the scenario that works and one that does not work. And I'm trying to figure out the one that does not work. Scenario that works:
From windows 7 (putty) I ssh into Linux_Server_1. echo $DISPLAY localhost:10.0
I run xclock and I see it pop up on my windows 7 pc. I am using xming on windows 7 to help me populate the display from linux to windows. One that does not work:
From windows 7 (putty) I ssh into Linux_Server_1. Then from Linux_Server_1 I ssh into Linux_Server_2. echo $DISPLAY <no output>
I try to setup $DISPLAY with localhost:10.0 or 0.0 or even my windows 7 pc ip address:0.0 ....etc Then when I try to run xclock I doesn't work.
I get these error messages: Error: Can't open display: <ip of display>
Also as a side note all our Linux servers are sitting on one subnet. My pc is sitting on another subnet. I use vpn to connect to the subnet where the servers sit from my pc.
I was using the latest stable release of Debian, dual-booted alongside Windows Vista, with the GNOME desktop, installed via netinst, trying to build and install a library that I knew and trusted, when suddenly I couldn't open the Root Terminal. I clicked the link (in Applications->Accessories (I think, whatever the top one is)->Root Terminal), and in the taskbar I saw an item that said "Starting Root Terminal". A few seconds later, that went away, but the terminal still wasn't open. I tried the regular user terminal, to see the same thing happen. Unsure of what was happening, I tried restarting my computer, since that's always the first step you should take in computer problems.
When I restarted, GNOME wouldn't start. The screen would flash a bit for a few seconds, then a dialog box would appear over a background of static that said "The greeter application is crashing. Attempting another one...".t would then go back to the DOS-style kernel, wait a second, and then the same thing would happen. After several of that, I would get a blue screen which said something to the effect of "It has been detected that the desktop environment has crashed six times in the past 30 seconds.
Waiting two minutes before trying again." When it did that, I tried logging in as root to assess the problem. I gave it the correct password, but it said that it was an incorrect login. After several tries (to ensure I didn't mistype the password), I logged in as myself. Same problem. I tried the su command, with the correct password, and it said it couldn't authorise it.
After a lengthy conversation with a friend of mine who was very good with computers, he basically summarised that he had no clue, but that his best guess would be a virus. Upon running the Linux installer, I found the Repair option. Not being particularly familiar with Linux, I used it simply to backup my important files onto a flash drive. I then tried running the Install option, in an attempt to simply write over my existing Linux and make it new again. The installer, however, consistently froze up when trying to start the partitioner, on the "Checking disks..." stage. I figured it was a problem with my partition. In my naivete, I simply used the Windows tools to clear that partition... It destroyed GRUB too, so I couldn't run any OS. I figured my computer was pretty well screwed, and at that point just decided to bring it into the shop and have them completely wipe it.
my computer was backed up onto an external hard driven I brought it back, I reinstalled Windows. Upon restart, it said that it was still looking for GRUB, which made no sense to me. After messing around with it a bit, I decided to just reinstall Linux too. To my lack of surprise, that fixed the problem. Both OS' now ran just fine. The first thing I did on Debian was to install the Clam Anti-Virus, which I understood to be one of the best Linux anti-viruses. However, within about 10 hours, got the same problem as originally. I wasn't doing any of the same things, and between the lack of consistency in activities and the fact that I had an anti-virus running,figured it wasn't a virus. Not knowing what to do, I just left it and have been using Windows since.
Is it possible to add a menu option to allow me to open a program as root from inside the application browser window? In windows if you hold ctrl and right click a program icon your given the option to "run as" (windows equivalent of sudo). Is there a way to get something like that in the application browser in gnome?
Currently running rc2. Downloaded 11.2 final DVD, md5sum is good, burned DVD, YaST says media check is good. (And for completeness burned a second DVD and get the same problem.)
On booting from the DVD I select "Installation" - a kernel loads and starts checking available h/w devices then crashes with the above message.
Followed by Please append a correct "root=" boot option.
Tried with root=sda1 (partition that is /) and only change is unknown-block (0,0)
My best guess is that I have EXT4 (did a clean install of RC2)? And/or I dont have a swap partition?
I have configured an instance in AWS EC2. I am trying to set the display back so I can run x apps. I login using ssh -xy -i...
export DISPLAY=XXX.XXX.X.XXX:0.0 echo $DISPLAY to verify xhost + xhost: unable to open display "XXX.XXX.X.XXX:0.0"
I have commented out nolisten tcp as suggested HERE I have modified /etc/gdm/custom.conf as suggested HERE Actually, the last suggested modifying /etc/gdm/gdm.conf, but that file didn't exist, so I added the line: DisallowTCP=false to /etc/gdm/custom.conf I rebooted, and still I get: xhost: unable to open display "XXX.XXX.X.XXX:0.0"
The following message comes up when I boot up: Logging in user Warning: Cannot open ConsoleKit session: Unable to open session: Launch helper exited with unknown return code 0. When I press OK, the system completes the start up and everything looks normal. But when I try to connect to internet, I get the following message:
KNetworkManager cannot start because the installation is misconfigured. System DBUS policy does not allow it to provide user settings; contact your system administrator or distribution. KNetworkManager will not start automatically in future. If I reboot the system, I logg in successfully. So far the problem has appeared approximately upon every second time I boot up. Rebooting the system seems to take care of it.
Don't know what info is of interest. I'm using
Opensuse 11.2 KDE 4.4.2 (Factory) After upgrade from 4.4.1 to 4.4.2 it worked fine for a week or so.
I am trying to run a java .class file by double-clicking it. So far my attempts at running it have been successful, but I don't' know how to keep the display open to see what the output is.
When I become root and try to run gedit, I get the error:
No protocol specified
(gedit:219: Gtk-WARNING **: cannot open display: :0.0
This does not happen from my user profile....xhost + actually solves the issue....so I guess I just need to add the host root to the list of hosts allowed to access the x server...
I need to get gksu to run programs. The goal is to be logged in as user1 and run firefox or google-chrome with user2 's settings stored in their own home directory. I'm trying the following with no success:
Code: user1@hostname:~$ su user2 Password: user2@hostname:/home/user1$ google-chrome No protocol specified (google-chrome:17144): Gtk-WARNING **: cannot open display: :2.0
Code: user2@hostname:/home/user1$ firefox No protocol specified No protocol specified Error: cannot open display: :2.0
Code: user2@hostname:/home/user1$ gedit No protocol specified (gedit:17162): Gtk-WARNING **: cannot open display: :2.0
i have just installed a redhat linux entprise 5 on my machine. I am trying to install a software and when i run the #install.ksf , my installation gets aborted and my install.log file shows this,
Error: Can't open display ! Environment variable 'DISPLAY' must be defined.
