RE: [Xen-users] VNC Console Hangs

["Munoz, Nicolas" <nicolas.munoz@xxxxxx>]

How about your /etc/X11/xorg.conf file ?
What's in it ?


-----Original Message-----
From: Chris [mailto:cjdl01@xxxxxxxxxxxxxxxxxx] 
Sent: 13 August 2009 16:47
To: Munoz, Nicolas
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] VNC Console Hangs

vnc=1 only seems to work on my hvm domUs -- not my linux native domUs.

I think this is because the linux machines use the framebuffer, and  
the others do not.

so, the line:
vfb = [ 'type=vnc,vncdisplay=2' ]
is supposed to take care of this.  Without this line, the vncserver  
never starts

Changing vnc=X doesn't seem to make any difference with the  
paravirtualized linux boxes.

So... it seems to me this is an fb thing...  Booting to  
non-virutalized linux boxes, you can see that this is where the  
monitor makes the switch from a non-fb to a fb console. I cannot find  
any documentation on this anywhere on this...

I've been trying to pass kernel params regarding fb to the the domu  
using the "extra=" directive, like "extra='vga=791'" or  
"extra='nofb'"... they just seem ignored...

Help?


Quoting "Munoz, Nicolas" <nicolas.munoz@xxxxxx>:

> Wait a minute, I just noticed one strange thing...
>
> Why is your
>
> vnc=1
>
> Line commented? You need to uncomment it
>
> -----Original Message-----
> From: Chris [mailto:cjdl01@xxxxxxxxxxxxxxxxxx]
> Sent: 13 August 2009 16:12
> To: Munoz, Nicolas
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-users] VNC Console Hangs
>
> Nicolas,
>
> Thanks for the reply, but that isn't working.  It gives me a big black
> screen with a flashing cursor in the upper left.  The screen is
> likewise not responsive to keyboard input.
>
> I did notice the /dev/xvc* does not exist on either the domu or the
> dom0.  I tried using xenconsole (/dev/xenconsole does exist in the
> domu)... but I get the same thing.
>
> Any other Ideas?
>
> Thanks.
>
>
> Quoting "Munoz, Nicolas" <nicolas.munoz@xxxxxx>:
>
>> Hi,
>>
>> Try to add the
>>
>> extra='console=xvc0'
>>
>> to your cfg file
>>
>> -----Original Message-----
>> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
>> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Chris
>> Sent: 13 August 2009 14:53
>> To: xen-users@xxxxxxxxxxxxxxxxxxx
>> Subject: [Xen-users] VNC Console Hangs
>>
>> Hi,
>>
>> I am running Xen on Debian Lenny.  I am having a very strange issue
>> regarding VNC.
>>
>> I am able to connect to VNC just fine -- but as the paravirtualized
>> machine boots, it stops at "lo: Disabled Privacy Extensions", and
>> appears to hang there.  The console will accept no keyboard input.
>>
>> However...
>>
>> The strange part is that "xm console" still works for this domu...
>> when I log in, I see that the domu has booted just fine!  Everything
>> works, including networking.  I need vnc to work on this this domu.
>> (btw- vnc works flawlessly with an hvm openbsd domu on the same
>> machine).
>>
>> Here is a screenshot of what I see:
>> http://sciotech.com/xen_vnc_problem.png
>>
>> Below is my cfg for this domu, and the output from my log file.
>> Please note that the commented lines in my cfg are things I have to
>> toggled to try and fix this -- none worked.
>>
>> Thank you for your help.
>>
>>
>> ---------------------------------------------------------------------------
>> cfg:
>> kernel      = '/boot/vmlinuz-2.6.26-1-xen-amd64'
>> ramdisk     = '/boot/initrd.img-2.6.26-1-xen-amd64'
>> memory      = '1536'
>> root        = '/dev/xvda2 ro'
>> disk        = [
>>                    'phy:/dev/vg/mylenny_swap,xvda1,w',
>>                    'phy:/dev/vg/mylenny_slash,xvda2,w',
>>                    'phy:/dev/vg/mylenny_home,xvda3,w',
>>                ]
>> name        = 'mylennydomu'
>> dhcp        = 'dhcp'
>> vif         = [ 'mac=00:17:3F:2F:F7:34' ]
>>
>> on_poweroff = 'destroy'
>> on_reboot   = 'restart'
>> on_crash    = 'restart'
>>
>> vfb = [ 'type=vnc,vncdisplay=2' ]
>> #sdl=0
>> #vnc=1
>> #vnclisten='0.0.0.0'
>> #vncconsole=1
>> #vncdisplay=0
>> #vncpasswd=''
>> #stdvga=0
>> #serial='pty'
>> #usbdevice='tablet'
>> ##localtime=1
>> #audio=0
>> #ne2000=1
>>
>> ----------------------------------------------------
>> qemu-dm-52.log:
>> Change xvda to look like hda
>> Change xvda to look like hda
>> Change xvda to look like hda
>> Watching /local/domain/0/device-model/52/logdirty/next-active
>> Watching /local/domain/0/device-model/52/command
>> shift keysym 003e keycode 86
>> shift keysym 00a6 keycode 86
>> keypad keysym ffae keycode 83
>> keypad keysym ffac keycode 83
>> keypad keysym ffb0 keycode 82
>> keypad keysym ffb1 keycode 79
>> keypad keysym ffb2 keycode 80
>> keypad keysym ffb3 keycode 81
>> keypad keysym ffb4 keycode 75
>> keypad keysym ffb5 keycode 76
>> keypad keysym ffb6 keycode 77
>> keypad keysym ffb7 keycode 71
>> keypad keysym ffb8 keycode 72
>> keypad keysym ffb9 keycode 73
>> shift keysym 0021 keycode 2
>> shift keysym 0040 keycode 3
>> shift keysym 0023 keycode 4
>> shift keysym 0024 keycode 5
>> shift keysym 0025 keycode 6
>> shift keysym 005e keycode 7
>> shift keysym 0026 keycode 8
>> shift keysym 002a keycode 9
>> shift keysym 0028 keycode 10
>> shift keysym 0029 keycode 11
>> shift keysym 005f keycode 12
>> shift keysym 002b keycode 13
>> shift keysym 007b keycode 26
>> shift keysym 007d keycode 27
>> shift keysym 003a keycode 39
>> shift keysym 0022 keycode 40
>> shift keysym 007e keycode 41
>> shift keysym 007c keycode 43
>> shift keysym 003c keycode 51
>> shift keysym 003e keycode 52
>> shift keysym 003f keycode 53
>> xs_read(): vncpasswd get error.
>> /vm/82b1f664-096e-56fe-fea0-a1b625600960/vncpasswd.
>> char device redirected to /dev/pts/1
>> Console: prepared domain, waiting for ringref at
>> /local/domain/52/console or /local/domain/52/serial/0
>> FB: Waiting for KBD backend creation
>> Doing backend watch on /local/domain/0/backend/vkbd/52/0
>> FB: Waiting for FB backend creation
>> Doing backend watch on /local/domain/0/backend/vfb/52/0
>> Console: got watch
>> Console: failed to find ring-ref/port yet
>> FB: Waiting for KBD frontend initialization
>> Doing frontend watch on /local/domain/52/device/vkbd/0
>> Console: got watch
>> Console: failed to find ring-ref/port yet
>> FB: Carry on waiting
>> Console: got watch
>> Console: got ring-ref 1078749 port 2
>> Console: connected to guest frontend
>> FB: Carry on waiting
>> FB: Waiting for FB frontend initialization
>> Doing frontend watch on /local/domain/52/device/vfb/0
>> Framebuffer 800x600x32 stride 3200
>> Framebuffer depth 32 width 800 height 600 line 3200
>> FB: Waiting for KBD frontend connection
>> Doing frontend watch on /local/domain/52/device/vkbd/0
>> FB: Carry on waiting
>> FB: Carry on waiting
>> FB: Carry on waiting
>> Xen Framebuffer registered
>> -----------------------------------------------------------
>>
>>
>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
>>
>
>
>



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