Alex Pelts wrote:
Does vnc accumulate dictionary between frame updates?
I was referring to the dictionary maintained by the LZMA codec, if VNC were to use LZMA compression. I noticed that in the ZRLE encoding, a single zlib stream is maintained for the whole session. I presume the same thing could be done with LZMA; in that case, the LZMA codec would maintain a dictionary for the duration of the session.
Also things vnc compresses are mostly flat color surfaces which compress well with most any method.
What about rendered text and multi-colored desktop backgrounds such as the ever-popular "Bliss" background under Windows XP?
I found most slowness during vnc session on windows comes not from the bandwidth but from screen polling. This problem is eliminated with EE or PE of the vnc with mirror driver.
What display functionality, if any, does the system disable while the VNC mirror driver is active?
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