[mythtv-users] Startup Frontend via SSH

[Alastair Kerr]

David Brieck Jr. wrote:
> On Mon, Jul 28, 2008 at 11:51 AM, David Brieck Jr. <dbrieck at gmail.com> wrote:
>   
>> On Mon, Jul 28, 2008 at 11:44 AM, Michael T. Dean
>> <mtdean at thirdcontact.com> wrote:
>>     
>>> On 07/28/2008 11:40 AM, David Brieck Jr. wrote:
>>>       
>>>> Until very recently (when I upgraded my Ubuntu box), I had a very nice
>>>> script setup so that I could remotely (re)start the frontend on one of
>>>> my machines. Since the upgrade though, this doesn't seem to work
>>>> either locally or remotely. Any idea what I'm missing or what changed?
>>>>
>>>>
>>>> #!/bin/bash
>>>> export DISPLAY=:0
>>>> killall mythfrontend.real
>>>> killall irexec
>>>> nohup irexec&
>>>> nohup mythfrontend&
>>>>         
>>> Any errors?  Any log output indicating problems (like missing HOME or
>>> something)?  Might need to add -l /path/to/logfile to your mythfrontend
>>> command line to see log output.
>>>
>>> Mike
>>>       
>> In noup.out I have the following output:
>>
>> xprop:  unable to open display ''
>> usage:  xprop [-options ...] [[format [dformat]] atom] ...
>>
>> where options include:
>>    -grammar                       print out full grammar for command line
>>    -display host:dpy              the X server to contact
>>    -id id                         resource id of window to examine
>>    -name name                     name of window to examine
>>    -font name                     name of font to examine
>>    -remove propname               remove a property
>>    -set propname value            set a property to a given value
>>    -root                          examine the root window
>>    -len n                         display at most n bytes of any property
>>    -notype                        do not display the type field
>>    -fs filename                   where to look for formats for properties
>>    -frame                         don't ignore window manager frames
>>    -f propname format [dformat]   formats to use for property of given name
>>    -spy                           examine window properties forever
>>
>> mythfrontend.real: cannot connect to X server
>>
>>
>> Obviously something with remote X connections, but it used to work
>> properly before, which has me dumbfounded.
>>
>>     
>
> Correction, here is the output:
>
> Xlib: connection to ":0.0" refused by server
> Xlib: Invalid MIT-MAGIC-COOKIE-1 key
> xprop:  unable to open display ':0'
> usage:  xprop [-options ...] [[format [dformat]] atom] ...
>
> where options include:
>     -grammar                       print out full grammar for command line
>     -display host:dpy              the X server to contact
>     -id id                         resource id of window to examine
>     -name name                     name of window to examine
>     -font name                     name of font to examine
>     -remove propname               remove a property
>     -set propname value            set a property to a given value
>     -root                          examine the root window
>     -len n                         display at most n bytes of any property
>     -notype                        do not display the type field
>     -fs filename                   where to look for formats for properties
>     -frame                         don't ignore window manager frames
>     -f propname format [dformat]   formats to use for property of given name
>     -spy                           examine window properties forever
>
> Xlib: connection to ":0.0" refused by server
> Xlib: Invalid MIT-MAGIC-COOKIE-1 key
> mythfrontend.real: cannot connect to X server :0
>
> How do I set magic cookies?
>   
I used to be able to do this be ensuring that xhost was set correctly 
(e.g. running the command 'xhost +'  on the :0 shell via a start up script)

Probably newer safer ways to do this now.  Check out this post:

http://www.nedit.org/pipermail/discuss/2001-September/000180.html


-Al






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