> -----Original Message----- > From: Ling Soon Leh [mailto:[EMAIL PROTECTED] > > I have a problem refreshing the VNC windows. It is so slow in > refreshing. Can it operate at a normal window refresh rate?
What's your normal refresh rate? Have you an idea of the number of bits that need to be send over at that refresh rate? An example with the settings of the display in save settings, the origional vga mode: 640 x 480 bytes at a refresh rate of 60 Hz (for the Americans, that's roughly your television definition: NTSC). The colordepth of this display is 4 bits (16 colors) but vnc always sends at least a byte per pixel so we calculate with 1 byte per pixel (256 colors, kind of like what a television set can do). 640 * 480 = 307200 bytes per screen. 307200 * 60 = 18432000 bytes per second; 18 MByte/sec A 100Mbit network can transmit 10 MByte/sec so you need a dual 100Mbit connection to keep even this low rate going. Don't expect your PC to be able to compress that on the fly, the internal bandwidth of most isa and pci busses cannot coop with that bandwidth either. Even if they run at 133 MHz, it's a constant brurst and that will congest buffers. CBee btw: If the refresh is not fast enough on M$Windows servers, try twiggeling with the polling options in the vncserver settings menu. _______________________________________________ VNC-List mailing list [EMAIL PROTECTED] http://www.realvnc.com/mailman/listinfo/vnc-list
