[winswitch] issue with forwarding x to a lower res monitor from a virtual Xvfb

[Zenny]

On 11/16/15, Antoine Martin <antoine at nagafix.co.uk> wrote:
> On 16/11/15 19:17, Zenny wrote:
>> On 11/16/15, Antoine Martin <antoine at nagafix.co.uk> wrote:
>>> On 15/11/15 20:48, Zenny wrote:
>>>> On 11/15/15, Antoine Martin <antoine at nagafix.co.uk> wrote:
>>>>> I have tested here with Xdummy and that worked fine.
>>>> Can you share your Xdummy command if different from the one in the
>>>> wiki?
>>> I am using the one that gets generated in the xpra.conf like so:
>>>
>>> export DISPLAY=:10
>>> xpra_Xdummy -noreset -nolisten tcp +extension GLX +extension RANDR
>>> +extension RENDER -auth $XAUTHORITY -logfile
>>> ${HOME}/.xpra/Xorg.${DISPLAY}.log -configdir ${HOME}/.xpra/xorg.conf.d
>>> -config /etc/xpra/xorg.conf $DISPLAY
>> Thanks for sharing, but ould not figure out 'xpra_Xdummy' :
> http://xpra.org/trac/browser/xpra/trunk/src/scripts/xpra_Xdummy

Thanks for very useful pointer:

But how to specify the screen resolution with xpra_Xdummy (as you have
suggested as quoted below)? In my case I need 4K in the virtual x
server in server and 1K in the client, fyi

export DISPLAY=:10
xpra_Xdummy -noreset -nolisten tcp +extension GLX +extension RANDR
+extension RENDER -auth $XAUTHORITY -logfile
${HOME}/.xpra/Xorg.${DISPLAY}.log -configdir ${HOME}/.xpra/xorg.conf.d
-config /etc/xpra/xorg.conf $DISPLAY

Cheers,
/z

>> Is that underscore a typo?
> No.
>> Else let me know what I am missing? I am on v0.16.0-1 beta.
> This  wrapper script may or may not be needed for running Xorg as a
> non-root user.
> In some cases, you may be able to just replace it with a plain "Xorg".
>
> Cheers
> Antoine
>
>
>
>>
>> Cheers,
>> /z
>>
>>> Antoine
>>>
>>>>
>>>>>> I checked Xdummy related to Ubuntu instruction at
>>>>>> https://www.xpra.org/trac/wiki/Xdummy, but to no avail.
>>>>> Are you using Xvfb or Xdummy? What distribution and version?
>>>>>> Any hints would be highly appreciated. Thanks!
>>>>> You may also be interested in the following 0.16 features:
>>>>> * ability to NOT change the virtual display to match the client's
>>>>> resolution using:
>>>>> XPRA_RANDR=0 xpra start ...
>>>>> See:
>>>>> http://xpra.org/trac/changeset/11229
>>>>> Shadow mode is A LOT less efficient than the regular "start" mode.
>>>>> * desktop scaling, which allows you to upscale or downscale the server
>>>>> resolution when displayed on the client:
>>>>> http://xpra.org/trac/ticket/976
>>>>> So you could render at 4k and display at 2k for example (though the
>>>>> main
>>>>> purpose of this ticket is to do the opposite to save bandwidth).
>>>>> * "sync-xvfb" fix for screen capture tools:
>>>>> http://xpra.org/trac/ticket/988
>>>>>
>>>>> Cheers
>>>>> Antoine
>>>>>
>>>>>> Cheers,
>>>>>> /z
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>>>>>> shifter-users at lists.devloop.org.uk
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>>>>>
>>>
>
>