Ubuntu
kubuntu-meta package

VNC much slower with kubuntu client than with vncserver

Bug #67165 reported by amichair
4
Affects Status Importance Assigned to Milestone
kubuntu-meta (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

On Kubuntu 6.06, enabling "Desktop Sharing" and connecting to it from a WindosXP box on the local LAN is slow to the point of being unusable. installing and running the standard vncserver package instead runs perfecly well (with no other modifications to the setup, client, or LAN). It's a shame the built-in solution doesn't work well and requires this additional installation, since the functionality is supposed to be exactly the same using any VNC server.
btw I've found this issue reported in various external forum websites, none with a solution or any insight other than installing an alternative VNC server to the built-in one...

Revision history for this message
Caroline Ford (secretlondon) wrote :

Thanks. Have you tried this under Edgy - is it still very slow?

Revision history for this message
amichair (amichai2) wrote :

Yes, I've upgraded to Edgy final and it's still the same...

btw I just noticed that running top shows the two processes 'Xorg' and 'krfb' taking up 50% CPU each, which means no CPU time is left for actually getting any work done!

Revision history for this message
Rocco Stanzione (trappist) wrote :

This sounds an awful lot like a problem I had with a VNC server a long time ago, on Windows. After a lot of frustration it turned out to be a configuration issue. The VNC server was polling too zealously - constantly polling the entire desktop, instead of a more effecient strategy like polling the area under the cursor and a small surrounding area, and polling the rest of the desktop only periodically. All this polling was a real drag on CPU resources, and a pretty easy configuration change fixed it. I haven't used VNC in a long time, so I don't have any more specific advice off the top of my head, but hopefully this info will be useful.

Revision history for this message
amichair (amichai2) wrote :

I turned the desktop sharing on via the GUI, which is basically a checkbox - not much room for tinkering with configuration. If anyone knows where those options are found and which should be modified, I'd be happy to test it.

Revision history for this message
Rich Johnson (nixternal) wrote :

Is this still an issue? I haven't experienced this issue and use VNC/RDP to connect to my desktops while I am at school with both Windows XP and SLED 10.2.

Changed in kubuntu-meta:
status: Unconfirmed → Needs Info
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for kubuntu-meta (Ubuntu) because there has been no activity for 60 days.]

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.