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10.7: A possible workaround for VNC issues
Authored by: meikokun on Oct 19, '11 02:43:29PM

whilst Im able to access a lion machine from my SL laptop, and from that Lion machine, Im able to access a tiger system, for some reason, in their restful state the tiger machine is sending zero data, but the lion machine is pumping it out at a meg a second. This is on our n-network.

ok, a bit more testing, and it seems that on closing the tiger vnc connection, the data output from the lion box dropped to 10k/sec. it seems that the clock running on the tiger computer was causing lion to refresh that entire desktop, and then pump out that image over vnc constantly.

by turning off anything at all updating on the lion system (seconds on the time, istat menus refreshing) data has now trailed off to zero whilst resting.

moving windows around like crazy otherwise not a problem, responsiveness perfect. Could it be lion is just incredibly inefficient at screen redraws for vnc?

maybe someone can install a different vnc server and see if that works better. if no one else does before the weekend, Ill have a go myself.



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