[NTLUG:Discuss] Question about X

[Leroy Tennison]

David Stanaway wrote:
> david at yezhov:~$ Xnest -noreset -auth .Xauthority:1 :1 &
> [1] 30278
>
> david at yezhov:~$ export DISPLAY=:1
> david at yezhov:~$ export XAUTHORITY=.Xauthority:1
> david at yezhov:~$ xsetroot -solid steelblue4
> david at yezhov:~$
>
> Try that. Note the -noreset
>
> What is happening is that the display is reseting since there are no
> clients connected. This probably helps to troubleshoot cases where the
> window manager crashes or fails to start etc.
>
> David Stanaway wrote:
>   
>> Interesting, I get the same thing with my Xnest. I can see the color
>> being set, but it changes back instantly. I am guessing there is
>> something to do with there not being any X clients using the display yet.
>>
>> David Stanaway wrote:
>>     
>>> It is probably more correct to set the DISPLAY variable after executing
>>> X. There is something not quite right with your default X background. It
>>> should be alternating black and white pixels which looks grey.
>>>
>>> Leroy Tennison wrote:
>>>       
>>>> Working with X trying to get a good grasp of how the components work 
>>>> together and ran across something I don't understand.  I boot into 
>>>> runlevel three then do
>>>>
>>>> DISPLAY=:0
>>>> export DISPLAY
>>>> echo $DISPLAY
>>>>
>>>> just to make sure it's set then I start X from console 1 with:
>>>>
>>>> X &
>>>>
>>>> I get a black screen with a bitmap X for a cursor on what I'll call 
>>>> "console 7" (Ctrl-Alt-F7), so far so good.  Next I do:
>>>>
>>>> xsetroot -solid blue
>>>>
>>>> No change on "console 7".  Next, on console 1, I do:
>>>>
>>>> xsetroot -cursor_name left-ptr
>>>>
>>>> Still no change on "console 7".  Finally I do:
>>>>
>>>> xterm &
>>>>
>>>> Now I not only get an xterminal application but also the blue background 
>>>> and changed mouse icon.  If I change the order and load the xterminal 
>>>> right after I start X then the xsetroot commands take effect immediately.
>>>>
>>>> Why does it work this way?
>>>>
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>>>>
>>>>         
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>>>
>>>       
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>>
>>     
>
>
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>
>   
Thank you!  That was it.  I hadn't noticed (or paid attention) to the 
-noreset before.