Mark, Has anyone installed any new anti-virus / firewalling software or updates, for example, that migth affect network traffic?
Regards, Wez @ RealVNC Ltd. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mark Jacobs > Sent: 22 March 2005 09:25 > To: James Weatherall > Cc: [email protected] > Subject: Re: Graphical Update Slowdown when being Monitored > > Let me try to give more details. > > 1) It was working fine last week. It is only since yesterday > that it has > been behaving like this, and yet there have been no changes to any of > the hardware setups. > 2) The jerkiness only occurs *when* the PC is being monitored > - ie. it > is only when the VNC Server running PC is being viewed by > VNCViewer. At > all other times, the server does *not* interfere with the > operation of > the PC. > > Why has this suddenly occurred on *all* our PCs > simultaneously when they > were running fine last week? > > James Weatherall wrote: > > >Mark, > > > >How much effect VNC Server has on system performance depends > heavily upon > >the system hardware & drivers. One things you may wish to > try is disabling > >"Capture alpha-blended windows" in the "Capture Method" tab > of VNC Server > >Properties. Capturing of alpha blended windows requires use > of Windows APIs > >that can impact performance in some cases. > > > >The VNC Mirror Driver should further improve things, when it > is released. > > > >Regards, > > > >Wez @ RealVNC Ltd. > > > > > > > > > >>-----Original Message----- > >>From: [EMAIL PROTECTED] > >>[mailto:[EMAIL PROTECTED] On Behalf Of Mark Jacobs > >>Sent: 21 March 2005 14:04 > >>To: [email protected] > >>Subject: Graphical Update Slowdown when being Monitored > >> > >>We have VNC Enterprise 4.1.3 server installed as a service on some > >>client Win XP Pro SP2 PCs. We use VNCViewer from the > supervisor PC to > >>"look at" active screens. We have noticed that when a PC is being > >>viewed, the graphical updates on the viewed PC are slowed down to a > >>point where :- > >> > >>1) The user notices it. > >>2) It interferes with the normal smooth operation of all > >>programs that > >>update the screen. > >> > >>We have even tried a simple text document in Notepad, and > >>scrolling up > >>and down is smooth when not being monitored, and jerky when being > >>monitored. Any ideas, anyone? > >> > >>-- > >>Mark Jacobs > >>http://www.dkcomputing.co.uk > >>_______________________________________________ > >>VNC-List mailing list > >>[email protected] > >>To remove yourself from the list visit: > >>http://www.realvnc.com/mailman/listinfo/vnc-list > >> > >> > >> > > > > > > > > > > -- > Mark Jacobs > http://www.dkcomputing.co.uk > _______________________________________________ > VNC-List mailing list > [email protected] > To remove yourself from the list visit: > http://www.realvnc.com/mailman/listinfo/vnc-list _______________________________________________ VNC-List mailing list [email protected] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
