Multiple Monitors

gte451f

New Member
Mar 16, 2010
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0
1
Hey guys, I've searched the Forums and the Interweb but have not yet found a way to support multiple monitors on KVM.

In short, I've got Windows 7 VMs that I'd like to make available to other Windows 7 users via RDP that supports multiple monitors.

Windows 7/RDP supports this, how can I make this happen on the guest VM?
 

tom

Proxmox Staff Member
Staff member
Aug 29, 2006
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Windows RDP has nothing to do with KVM, so I do not understand this question.
 

gte451f

New Member
Mar 16, 2010
13
0
1
"Windows RDP has nothing to do with KVM"

I'll rephrase to see if I can make this request more clear.

1. Windows 7 supports publishing multiple "monitors" over RDP so long as the local desktop/graphics card has multiple heads.

2. KVM hosts Windows 7 VMs

3. How do I get a guest Windows 7 VMs to publish 2 "monitors"? just like their physical counter parts.


*The way I see it, I need a graphics card that supports multiple monitors installed on the host machine then somehow push that down to the Guest VM.
 

holgihero

Member
Jan 13, 2010
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0
6
As Tom stated, this has nothing to do with KVM capabilities.
If your Win7 on a real machine can provide 2 screens over rdesktop when the host has only one then it should be possible with any virtualisation. If not, then not.
It definitely does not matter how many screens your virtualisation host is able to support.

Rgds Holgi
 

tom

Proxmox Staff Member
Staff member
Aug 29, 2006
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thanks for the details. as far as I know KVM cannot provide two graphic cards, now.
 

gte451f

New Member
Mar 16, 2010
13
0
1
I guess speaking more generally, how can a user on a desktop with two physical monitors (linux, windows you pick) connect to a VM Guest and fill both monitors with that VM Guest desktop.

Where does this responsibility lie? On the Virtual Server (KVM, XEN) or the Protocol (RDP, ICA, SPICE, VNC)?
 

gte451f

New Member
Mar 16, 2010
13
0
1
So there are a couple of ways that Windows support multiple monitors I got it.

What I wonder is what is required to product multi monitor support on a guest VM running Windows. In all the examples that I've googled, one needs Windows to "see" multiple displays. Consider the first screen shot in your link, there is a monitor #1 and #2. How does one produce that effect in a guest VM?
 

holgihero

Member
Jan 13, 2010
79
0
6
Ok, now i got it.
As far as my knowledge goes, quemu (or more precise: the grafic card emulation they use) does not support multi monitors.
So Tom was right, as usual.

rgds, Holgi
 

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