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Trying to choose a VNC / remote control type software.
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ajnabi
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PostPosted: Sun Jun 18, 2006 8:07 pm    Post subject: Trying to choose a VNC / remote control type software. Reply with quote

I am trying to set up my gentoo box so that it can be accessed remotely as if sitting locally at the machine.

I installed nxFree first and got it working but when I log into it I can't get it to completely grab the input. For instance Alt+Tab switches me back to the client computer instead of tabbing through the remote computert's windows.

I tried tightVNC next. This seems to work but still no keyboard grabbing.

Then I installed x11vnc. This works but since it uses the servers X session I am stuck in a resolution that is bigger then my laptop screen. And it also does not allow for keyboard grabbing.

I am looking for something that behaves like a virtual machine where the keyboard and mouse act on the virtual machine until a combination of keys is pressed such as Ctrl+Alt which releases back to the host computer.

Is this possible? Does anyone know of such a product? I also need windows users to be able to access.

Thanks,
ajnabi
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Telemin
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PostPosted: Sun Jun 18, 2006 9:44 pm    Post subject: Reply with quote

Use the vnc module for xorg, that is emerge Xvnc with the "server" use flag, and configure it as a module in your xorg.conf (see the wiki for details). Then for access from other boxes use the original viewer application from www.realvnc.com which supports dynamic desktop resizing and will resize the desktop to fit your normal screen when run in fullscreen mode.

Hope this helps

--Freestyling--
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occ
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PostPosted: Sun Jun 18, 2006 9:54 pm    Post subject: Re: Trying to choose a VNC / remote control type software. Reply with quote

ajnabi wrote:

I tried tightVNC next. This seems to work but still no keyboard grabbing.
ajnabi


I use tightVNC, but do do the opposite (that is to access a remote Windoz machine), and there is no keyboard grabbing issue, except for Ctrl-Alt-Del and F8. the later being intercepted by tightvnc to display a pop-up that allows you among other things to send a ctrl-alt-del to the remote machine or send a F8.

on windows, the RealVNC client seems to have options you can tweak to achive what you need
http://www.realvnc.com/products/free/4.1/winvncviewer.html#Input

"If this checkbox is ticked (DisableWinKeys is true) then special key sequences such as the Windows keys, Application key or Alt-Tab will be passed to the VNC Server rather than being interpreted locally. The special Secure Access Sequence Ctrl-Alt-Del is always processed by the viewer computer, and not passed to the server.

Note that if you run a full-screen VNC Viewer, with MenuKey disabled and DisableWinKeys set, then you will find it rather hard to get out of the viewer, back to your local applications! In this case, you will probably need to use Ctrl-Alt-Del to close VNC Viewer, or to switch to another application if possible. "
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ajnabi
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PostPosted: Tue Jun 20, 2006 10:46 pm    Post subject: Reply with quote

Thanks freestyling and occ,

Looks like realvnc is a windows product which will hopefully solve the problem for the windows users. I have not been able to try it on a windows box yet - but am working on that.

I still need to solve the problem of remote access using my Linux laptop. I found a comment in the vncviewer (tightVNC) man page using the word "grabKeyboard". It might lead to something but I don't understand what it means. How do I make use of "resources"? Hopefully someone can clarify. The section in the man page is under the heading "RESOURCES" and is as follows:
Quote:

RESOURCES
X resources that vncviewer knows about, aside from the normal Xt resources, are as follows:
...

fullScreen
Equivalent of -fullscreen option. Default false.

grabKeyboard
Grab keyboard in full-screen mode. This can help to solve problems with losing keyboard focus. Default false.
...


I was also wondering - Are you using the free version of realVNC?

Thanks,
ajnabi
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occ
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PostPosted: Wed Jun 21, 2006 12:05 am    Post subject: Reply with quote

with kde.
There is a way to do what you want, using Adanced/Special windows Setting of the context menu of the tight vnc window title bar.
in the tab 'Workaround', select 'Block global shortcut' make if Force and select the checkbox on the right...
After that Alt-tab on the tight-vnc windows is handle by tigght-vnc not the window manager...
of course you can completely remove 'Alt-Tab' from kde : (Control-Center/Regional & Setting/Keyboard Shortcuts -> set tthe shortcut for 'Walk Through Windows to 'none'

There may be way to do smarter things used the 'Input Actions' (see Kde Control Center/Regional & Accessibility).

If the remote machine is on a local netword (i.e you have a confortable bandwidth and a very low latency), you could consider starting a separate X server (take a lok at XDMCP)
you can switch between the two with ctrl-alt-{F7-F8}
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ajnabi
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PostPosted: Sun Jul 09, 2006 8:21 pm    Post subject: Reply with quote

occ,

Quote:
with kde.
There is a way to do what you want, using Adanced/Special windows Setting of the context menu of the tight vnc window title bar.


Sorry, I thought I responded to this post a month ago. I must have done something silly like not hit the submit button.

Anyway, The Alt+Tab is only one keystroke I mentioned as an example. I want all keystrokes bound to the remote machine. From my further research, I believe I will have to go with the full paid version of noMachine (freenx). they are about to have a new release so I am waiting before buying. I will post results when I do.

Thanks,
ajnabi
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