Comment 94 for bug 31037

I know this thread is kind of old and somewhat redundant. However, I do have 2 cents to add here. I saw mentioned a few times here that it seems like "vino-server" jumps up the CPU usage after a bad login attempt. I am running Lucid 10.04 and I use VNC quite a bit. I only found this thread because I too was experiencing high (90%) CPU usage when using VNC. I run at about 14% when not connected to Vino but the process is still running.

Here is my 2 cent comment as to the "Bad Login" attempts. I run about 9 computers on my network. I have 5 computers running Windows 2000, 1 running Windows XP, 2 Macs running 10.5.8 and now 1 running Ubuntu 10.04. My main "gateway" router is forwarding ports 5900, and so on, for VNC which is running on all computers on my network. On any given day my computer listening on port 5900 will get approx. 20 "Invalid Attempt" errors in my System Management Utility. This means that there are computers scanning the Internet looking for computers with port 5900 open and then tries to make the connection.

I'm just wondering if that is the problem that some are having here. You could possibly be getting these "Hack" attempts from outside. When they get the password wrong then it sends your CPU usage through the roof. Obviously you have no idea that the attempt is be made from the outside unless this can be monitored (Like in Windows). Just a little "food for thought"

I hope this information could possibly help somebody.
-Jim