UltraVNC

Dale King · Guest

My work PC has two monitors and when I log into it with VNC I only get to see the primary display. I'd like to see one of two possibilities.

- Allow separate connections for each display so I might initiate two sessions to different ports each showing a different display.

- Provide a toggle to switch between the multiple displays. So if the server recognizes that there are multiple displays it tells the client and the client provides a choice list to select which one to display.

Cochrane · Guest

I think that this is the major missing feature from UltraVNC.

I have some multi-head setups, and for those PCs I use RealVNC, but the speed difference is huge: Ultr@VNC wins,

The problem in doing a multi-head enabled Ultr@VNC maybe could be the kernel mode video driver, which has to be extended to support multi-head desktops.

When it will be available, then, I'll be in heaven Smile

Cheers,
Cochrane

AlanHawk2 · Guest

Add my vote to this, multi-monitor support is a MUST have for me. I can't use any vnc client that does not have multi-monitor support, without multi-monitor the program is of no use to me.

Rudi De Vos · 2004-04-23 10:21

Because the requests for multi-monitor support are that big,
we are taking a look at it.
Posible this will delay the rel1.00, but you ask we .... Smile

How does it need to be implemented...

Server
++viewer select 1,2 or 1+2 of the server screens ?
Viewer
++Full screen on prim or secundary switch ?

Feedback please

AlanHawk · Joined: 2004-08-22 21:37 Posts: 4

xbx14 · 2004-05-04 05:22

Perhaps you wonderful developers could look at x2vnc @

http://fredrik.hubbe.net/x2vnc.html

I have not tried it yet, but perhaps this could do what some of people desire! Wink

Cochrane · Guest

Rudi De Vos · 2004-04-23 10:21

Sum:
For Server

Each card has it own server
:1 = port 5901
:2 = port 5902
etc
port 5900 use the full desktop
A 4 head system run 5 winvnc servers ?

Viewer:
Does the viewer need to be multi-mon aware..
Full screen can be selected to display on prim or sec monitor.

Driver: no probs.
Made a 8000x6000 a time ago

Memory could be a problem
total screensize X 4 -> needed MB (1600x1200x4=7,7Mb X 4
32 MB)

Cochrane · Guest

Rudi De Vos · 2004-04-23 10:21

The implementation is a lot harder.....
I need to simplify the implementation.

Probs:
video card 1 16bit
video card 2 32 bit
Spanned desktop is composed out of 2 depths
Multi-thread:
To many changes and bug risk.

It will be implemented as follow, other need to wait for a Beta 2. Risk for making it unstable is to high.

+Viewer connect to video 1 OR video 2
+All viewers share the same video card.
+To share 2 different video cards, 2 servers need to be started.
+Spanned desktop will only be supported in combination with the video driver. The video driver has it won depth, independed of the real video cards.

AlanHawk · Joined: 2004-08-22 21:37 Posts: 4

I noticed something today, don't know if it will help the developers or not. I accidently connected to my main computer (running realvnc server, dual monitor setup) with Ultravnc and UltraVnc showed both monitors, with a scroll bar, just like realvnc viewer. So, the actual dual monitor capability is on the SERVER side, not on the viewer side.

Guest · Posted: 2004-09-08 23:03 Post subject:

TEST19_8

Multi-headed display..... test

non driver:select prim or secundary
driver:select prim/sec/both

Selection is done with the full desktop button from the viewer
(the button you use to go back from single window mode to desktop)

CodeSuidae · Guest

In addition to the multiple color depth issue there is the issue of multiple resolutions. My monitors usually run at different resolutions, so if the desktop is to be presented in a single window, part of the window will need to be masked. If possible it should also take into account the relative positioning of the screens, as defined in the Display Properties dialog. It would be very cool if the VNC client window was actually non-rectangular if necessary when displaying desktops that are arranged such that they are not exactly parallel.

It would be nice to be able to display only one screen, with an option to switch the display to another screen without having to reconnect or open a new session. I'm thinking something like the virtual desktops in linux, where there is a button in the VNC toolbar for each desktop. Clicking the button switches the view to that desktop. The mechanism that accomplishes this matters not, it could disconnect from the current desktop and make a new connection using a different port, as long as it doesn't reprompt for password.

Rudi De Vos · 2004-04-23 10:21

This is how it is implemented in TEST19_8.

But take care, someone reported a bad crash with the testversion.

You have a button to switch between the 2 displays
(non driver mode)
With the driver installed, you can switch between the 2 displays
and the full desktop.

If sizes differ, black parts. Non rectangular is to difficult to implement.

Jay · Guest

Prior to RC18 (not sure my last RC) I could connect from my UltraVNC client to my dual head desktop just fine and in full screen mode moving the mouse to the screen edge would scroll VERY fast right to the second monitor. Now with RC18 I can still move to the edge but the screen is scrolled in 1/2-inch segments and takes 5 to 10 seconds to scroll all the way to the second monitor.

When in windowing mode (i.e., not full screen) I can scroll using the scroll box on the scroll bar to reach the second monitor in way less than 1 second so it is not a computer performance issue.

To be clear, on the server I have a dual head card with 2 identical displays and am using the UltraVNC video driver. On the client I have a single display the size of one of the two server displays.

What changed? Put it back! It was much better before.

Also, in RC18 my scroll wheel will no longer scroll windows in the remote display. It used to work fine.

Thanks for the GREAT product,
Jay

Jay · Joined: 2004-09-18 13:12 Posts: 1

Rudi De Vos · 2004-04-23 10:21

RC18 did not have any mouse or monitor changes

TEST19 versions, have multi monitor support.
Support 2 different video cards, dual headed should also work,
but not tested.

TEST19 have a display switch button,
prim/sec/both (driver used)
prim/sec (non driver mode)

Video driver is a hooking replacement on server.
Client does not use it.

Guest · Posted: 2005-05-13 17:26 Post subject:

Ping. Is this currently implemented?

Guest · Posted: 2005-06-20 06:24 Post subject:

Guest · Posted: 2005-07-19 16:25 Post subject: Extend local monitor to a second monitor

As far as I got the idea of this thread, it is about viewing a remote multi-monitor setup on a single local monitor.
Today I came across the MaxiVista software (http://www.maxivista.com/) and immediately thought this should be part of UltraVNC as well:

The setup is having two PC's standing next to each other.
- extend your main monitor by another monitor connected to a second PC
- alternatively control both machines with one keyboard and mouse just by moving the mouse over to the other screen.

The technology is already given in VNC. Should be possible to implement this simultanioulsy with the remote-multi-monitor thing. X2VNC was mentioned above and seems to implement the first feature.