# VNC fun

**URL:** <https://forums.suse.com/t/vnc-fun/24310>\
**Category:** Chatting over the Back Fence\
**Created:** [August 20, 2013, 9:05pm UTC](https://forums.suse.com/t/vnc-fun/24310 "2013-08-20T21:05:15Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![System1](https://avatars.discourse-cdn.com/v4/letter/s/51bf81/32.png) [@System1](https://forums.suse.com/u/System1)\
**Post date:** [August 20, 2013, 9:05pm UTC](https://forums.suse.com/t/vnc-fun/24310/1 "2013-08-20T21:05:15Z")

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Has anyone run into this issue before? Running ultra vnc on an XP  
machine and if I connect to this machine on port 5900, I get prompted  
for the password, and when I enter it, the machine reboots.

Anyone else ever see this? If so, any ideas how to make this ‘feature’  
stop?

–  
Stevo

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\
**Post date:** [August 20, 2013, 9:23pm UTC](https://forums.suse.com/t/vnc-fun/24310/2 "2013-08-20T21:23:36Z")

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> [@](#):
>
> On Tue 20 Aug 2013 06:05:15 PM CDT, Stevo wrote:
> 
> Has anyone run into this issue before? Running ultra vnc on an XP  
> machine and if I connect to this machine on port 5900, I get prompted  
> for the password, and when I enter it, the machine reboots.
> 
> Anyone else ever see this? If so, any ideas how to make this ‘feature’  
> stop?

fdisk

Enable telnet, login and watch what happens (there must be some logs  
somewhere)?

No logs on the local machine?

Hardware fault maybe, faulty ram, network card?

–  
Cheers Malcolm Â°Â¿Â° (Linux Counter #276890)  
openSUSE 12.3 (x86\_64) Kernel 3.7.10-1.16-desktop  
up 2:06, 3 users, load average: 0.33, 0.23, 0.19  
CPU AMD E2-1800@1.70GHz | GPU Radeon HD 7340

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\
**Post date:** [August 20, 2013, 10:28pm UTC](https://forums.suse.com/t/vnc-fun/24310/3 "2013-08-20T22:28:19Z")

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My first guess is a Video Card driver issue.  
Try changing to a Generic Windows Video Driver and see what happens.

If it helps, troubleshoot from there…

On 8/20/2013 2:05 PM, Stevo wrote:[color=blue]

> Has anyone run into this issue before? Running ultra vnc on an XP  
> machine and if I connect to this machine on port 5900, I get prompted  
> for the password, and when I enter it, the machine reboots.
> 
> Anyone else ever see this? If so, any ideas how to make this ‘feature’  
> stop?  
> [/color]

–  
Craig Wilson - MCNE, MCSE, CCNA  
Novell Knowledge Partner

Novell does not officially monitor these forums.

Suggestions/Opinions/Statements made by me are solely my own.  
These thoughts may not be shared by either Novell or any rational human.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\
**Post date:** [August 20, 2013, 11:22pm UTC](https://forums.suse.com/t/vnc-fun/24310/4 "2013-08-20T23:22:01Z")

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Looks like the settings (under admin properties) were set to log the  
user off after the vnc user disconnected…sigh.

If I could only get proper info from my user support people, I was told  
it was rebooting instead of logging off.

–  
Stevo

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\
**Post date:** [August 20, 2013, 11:54pm UTC](https://forums.suse.com/t/vnc-fun/24310/5 "2013-08-20T23:54:06Z")

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Anyone else run into another weird issue we’re seeing here? Running a  
64 bit version of vnc on our windows 7 boxes. Out of the blue on some  
machines, some settings get changed.

Usually it’s the vnc password as well as the viewer inputs get  
disabled. Like I said, these just up and happen, not really sure why.  
The VAST majority of my users don’t know where or how to change any vnc  
settings, and the IT staff is not doing it as they are the ones  
affected by it.

Any ideas on _this_ one?

–  
Stevo

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\
**Post date:** [August 21, 2013, 1:59am UTC](https://forums.suse.com/t/vnc-fun/24310/6 "2013-08-21T01:59:26Z")

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> [@](#):
>
> On Tue 20 Aug 2013 08:54:06 PM CDT, Stevo wrote:
> 
> Anyone else run into another weird issue we’re seeing here? Running a  
> 64 bit version of vnc on our windows 7 boxes. Out of the blue on some  
> machines, some settings get changed.
> 
> Usually it’s the vnc password as well as the viewer inputs get  
> disabled. Like I said, these just up and happen, not really sure why.  
> The VAST majority of my users don’t know where or how to change any vnc  
> settings, and the IT staff is not doing it as they are the ones  
> affected by it.
> 
> Any ideas on _this_ one?

Hi

fdisk 😉

Sure the end users aren’t rolling back to a previous system image when  
things go funny? This would cause the changes. Maybe make your changes  
then save the image thing that windows does um restore point that’s  
it…

–  
Cheers Malcolm Â°Â¿Â° (Linux Counter #276890)  
openSUSE 12.3 (x86\_64) Kernel 3.7.10-1.16-desktop  
up 3:16, 3 users, load average: 0.30, 0.19, 0.14  
CPU AMD E2-1800@1.70GHz | GPU Radeon HD 7340

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\
**Post date:** [August 21, 2013, 4:45pm UTC](https://forums.suse.com/t/vnc-fun/24310/7 "2013-08-21T16:45:34Z")

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malcolmlewis sounds like they ‘said’:  
[color=blue]

> fdisk ;)[/color]

Ummm…no thanks. 🙂

[color=blue]

> Sure the end users aren’t rolling back to a previous system image when  
> things go funny? This would cause the changes. Maybe make your changes  
> then save the image thing that windows does um restore point that’s  
> it…[/color]

I’m quite sure they’re not rolling back to a restore point as we have  
that disabled.

–  
Stevo

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\
**Post date:** [August 21, 2013, 5:04pm UTC](https://forums.suse.com/t/vnc-fun/24310/8 "2013-08-21T17:04:48Z")

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> [@](#):
>
> On Wed 21 Aug 2013 01:45:34 PM CDT, Stevo wrote:
> 
> malcolmlewis sounds like they ‘said’:  
> [color=blue]
> 
> > fdisk ;)[/color]
> 
> Ummm…no thanks. 🙂
> 
> [color=blue]
> 
> > Sure the end users aren’t rolling back to a previous system image when  
> > things go funny? This would cause the changes. Maybe make your changes  
> > then save the image thing that windows does um restore point that’s  
> > it…[/color]
> 
> I’m quite sure they’re not rolling back to a restore point as we have  
> that disabled.

Hi  
Maybe this is it, make sure it’s run as administrator?  
[http://forum.ultravnc.info/viewtopic.php?t=17643#p68062](http://forum.ultravnc.info/viewtopic.php?t=17643#p68062)

–  
Cheers Malcolm Â°Â¿Â° (Linux Counter #276890)  
openSUSE 12.3 (x86\_64) Kernel 3.7.10-1.16-desktop  
up 18:23, 3 users, load average: 0.46, 0.33, 0.20  
CPU AMD E2-1800@1.70GHz | GPU Radeon HD 7340
