Re: [Xen-devel] Xen 4.2.0, VNC connection to Windows domU causes black screen on VNC

[Valtteri Kiviniemi <kiviniemi.valtteri@xxxxxxxxx>]

2012/10/3 Pasi Kärkkäinen <pasik@xxxxxx>

On Wed, Oct 03, 2012 at 05:11:25PM +0300, Valtteri Kiviniemi wrote:
>    2012/10/3 Pasi Kärkkäinen <[1]pasik@xxxxxx>

>
>      On Wed, Oct 03, 2012 at 04:48:33PM +0300, Valtteri Kiviniemi wrote:

>      >    2012/10/3 Konrad Rzeszutek Wilk <[1][2]konrad@xxxxxxxxxx>

>      >
>      >      On Wed, Oct 3, 2012 at 9:22 AM, Valtteri Kiviniemi

>      >      <[2][3]kiviniemi.valtteri@xxxxxxxxx> wrote:
>      >      > Hi,
>      >      >
>      >      > Tested with realvnc and tightvnc. Realvnc just closes itself
>      when the
>      >      > resolution changes and tightvnc just stays open with the black
>      screen.
>      >      >
>      >
>      >      Lets first see if this is a problem with Windows 2008 expecting
>      >      certain registers in the VGA
>      >      emulation and falling flat on its face.
>      >
>      >      If you launch (with the same guest config - but obviously replace
>      the
>      >      ISO), with an
>      >      Fedora or Ubuntu LiveCD - does it boot? Do you see the VNC screen
>      >      changing resolution
>      >      and all that?
>      >
>      >    Hi,
>      >
>      >    Same problem with Fedora-17-x86_64-Live-Desktop.iso. I after the
>      >    resolution changed the screen goes black. If I change stdvga to 1 I
>      will
>      >    see a bit further but then the VNC client crashes and says
>      something about
>      >    unsupported features (dont know even if it should work).
>      >
>
>      Did you try xvnc4viewer? or normal vncviewer? or virt-viewer?
>      I usually use virt-viewer without problems..
>      -- Pasi
>
>    Hi,
>
>    I'm using Windows 7 in my desktop-computer, so I have not tested any other
>    vnc clients than ultravnc or tightvnc. I can of course test others too if
>    there is windows binary available.
>

I don't think I've ever tried using from Windows :)

How about installing Xming to your Windows box, and then use putty ssh X11 forwarding to dom0,
and execute vncviewer/virt-viewer in dom0? You'll get the vnc GUI displayed on your Windows.

-- Pasi

Hi,

No need anymore, since I got it working (see my earlier post). Somone should add this to the xen wiki/common problems. In my case stdvga needs to be enabled and then VNC connection type must be RAW. So in case someone has these kind of problems in the future, it would be good to mention this in wiki :)
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