On Wed Nov 26, 2008 at 01:00:47PM +0100, Egil Solgerd wrote: > Hi, > > I am an inexperienced user who are running realVNC server on a PC to update > two remote monitors with the same screen picture. > > An Intouch application is running as an HMI system on the PC, and the Intouch > picture are displayed on both Remote Monitors. > > The problem is that the refresh time on the screen seems to be approximately 5 > seconds. > > This is shown by alarm banners blinking very slowly, and there is also a clock > on the screen that only updates every 5-6 seconds. > > We have tested the connection form the PC to the Remote Monitors by pinging > with 20000 bytes, and get a response time of 3ms, which should be good. > > Any suggestions on what might be causing this slow screen update would be much > appreciated. > There's several ways for apps to update windows, and not all of these can be picked up in the same way. If this is a Windows system, then you should be able to improve the performance by using a mirror driver (a dummy graphics card driver that passes any updates to the VNC server). I'd suggest trying with TightVNC (http://www.tightvnc.org/), which is VNC compatible, and the DFMirage mirror driver (http://www.demoforge.com/dfmirage.htm). I think the commercial versions of RealVNC also support a mirror driver.
Alternately, you can try changing the Capture Method within the VNC Server Properties dialogue (see http://www.realvnc.com/products/free/4.1/winvnc.html#Hooks) - polling may work better for your use case. HTH, Robin -- ___ ( ' } | Robin Hill <[EMAIL PROTECTED]> | / / ) | Little Jim says .... | // !! | "He fallen in de water !!" | _______________________________________________ VNC-List mailing list VNC-List@realvnc.com To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
