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cayenne
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Joined: 17 Oct 2002
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Location: New Orleans
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 Posted: Thu Jun 24, 2004 2:56 am Post subject: Can't run X app (k3b) while su'ed as root... |
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Hi all,
I recently upgraded my kernel to 2.6, and KDE to 3.2. It seems now, that while as my normal user, but, su'ed into root, I can no longer run x applications.
As my local user, I did xhost +localhost. However, when I try to run a program as root, I get the following error:
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
k3b: cannot connect to X server :0
[1]+ Exit 1 k3b
Any ideas what I'm doing wrong here?
TIA,
cayenne
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Shan
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Joined: 04 Nov 2003
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| Posted: Thu Jun 24, 2004 3:04 am Post subject: |
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You've got to run it as yourself, with root privs. Try this instead
Please note -c stands for command
also note the BACKTICS (not quotes). You'll be asked for the root password, and then the program should execute.
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Plastic
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Joined: 24 Mar 2004
Posts: 649
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| Posted: Thu Jun 24, 2004 4:52 am Post subject: |
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Run
before you su |
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Shan
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Joined: 04 Nov 2003
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| Posted: Thu Jun 24, 2004 5:02 am Post subject: |
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| Plastic wrote: | Run
before you su |
You could put this in your .bashrc or such too if you wanted it to be persistent right? Though it would probably invalidate whatever reason they had to make it currently prevent root from launching X apps eh?
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Rafixus
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Joined: 06 Jan 2003
Posts: 67
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| Posted: Fri Jun 25, 2004 5:55 am Post subject: |
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For temporary X usage from root, you could also
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cp /home/<your user>/.Xauthority /root
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then you can run all the needed apps as root and X won't complain |
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soujirou
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Joined: 22 Jun 2004
Posts: 205
Location: sweden
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| Posted: Fri Jun 25, 2004 11:18 am Post subject: |
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im trying to run xscreensaver when im root
it starts if i use xhost local:root but when im in it it pops up an dialog "couldnt write /root/.xscreensaver" how do i fix this ? |
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Shan
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| Posted: Fri Jun 25, 2004 11:55 am Post subject: |
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Maybe Im mis-interpreting what your saying but why are you logged into X as root? Its not neccisary and poses a large secuirty risk (as well as increases the danger of screwing up by a whole lot)
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soujirou
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| Posted: Fri Jun 25, 2004 12:09 pm Post subject: |
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........................ well yes... didnt solve the problem though  |
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Shan
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| Posted: Fri Jun 25, 2004 12:25 pm Post subject: |
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| soujirou wrote: | | ........................ well yes... didnt solve the problem though |
My point was to AVOIDE the problem all together. Maybe your new to the Linux world and don't realize this, but running as root (especially as in an X environment) is a Bad Thing(TM) and should be avoided at all costs.
Use "su -" or "sudo" instead, both methods allow you to run x apps as well.
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soujirou
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| Posted: Fri Jun 25, 2004 12:33 pm Post subject: |
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| okej |
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pjp
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