ubuntu-x-swat team mailing list archive

[mmorris <c_ubuntu@xxxxxxxxxxxxx>]

Seems that this has not been resolved yet ... not trying to beat a dead
horse, but to provide more information I will describe my experience
with this issue.

I have three machines I used:

Laptop: 
- Ubuntu 9.04 i386 (clean install)
- non NVidia video card
- the machine running Remote Desktop Viewer (vinagre 2.26.1-0ubuntu1)
- Visual Effects set to Extra

File Server:
- Ubuntu 8.10 i386 (clean install)
- NVidia video running NVIDIA accelerated graphics driver (version 173)
- a machine runing vino 2.24.1-0ubuntu1 (VNC server)
- Visual Effects set to Extra

Workstation
- Ubuntu 9.04 amd64 (clean install)
- NVidia video running NVIDIA accelerated graphics driver (version 180)
- a machine runing vino 2.26.1-0ubuntu1 (VNC server)
- Visual Effects set to None, Normal, Extra

1) I was doing a clean install of Ubuntu 9.04 amd64 on Workstation.  The
Visual Effects on Workstation were defaulted to "Normal".  Just after
the installation (before doing anything to the system), I VNCed into
Workstation from Laptop.  At the same time I VNCed into File Server from
Laptop.  At that point in time, both VNC sessions worked perfectly.

2) While VNCed into Workstation from Laptop, On Workstation I installed
the NVIDIA accelerated graphics driver (version 180).  It did not ask me
to reboot, so I did not at that time (but I had a sneaking suspicion
that I needed to have the new driver run.)  At that point in time, both
VNC sessions worked perfectly.

3) Still while VNCed into Workstation from Laptop, On Workstation (just
after installing the NVidia driver) I ran the Update Manager and updated
everything (July 24 2009) at which point I was prompted to reboot
Workstation.  Again just prior to rebooting Workstation, both VNC
sessions worked perfectly.

4) After rebooting and logging into Workstation, I VNCed into it from
Laptop.  The Visual Effects on Workstation were still set to "Normal".
The initial display seemed to work but there were no updates.  However
it appeared that mouse clicks and keystrokes were sent to Workstation
from Laptop (was able to see Workstation's Monitor).  If I shut the the
Remote Desktop Viewer on Laptop down and brought it back up and re-VNCed
into Workstation, the display updated to what was shown on Workstation,
but there were no further updates.  VNCing into File Server from Laptop
continued to work perfectly.

5) I rebooted Workstation and Laptop a number of times, still same
result VNCing into Workstation from Laptop did not update, while VNCing
into File Server from Laptop it worked (updated).  Trying to debug this
some more, I tried VNCing into Workstation from File Server (did not
update), and into Laptop from File Server (updated).

6) I found this bug report, switched Workstation's Visual Effects to
"None", VNCed into Workstation from Laptop and it updated.

To recap...
Laptop --> Workstation (pre NVidia driver, Normal visual effects) == updates
Laptop --> Workstation (post NVidia driver, Normal visual effects) == no updates
File Server --> Workstation (post NVidia driver, Normal visual effects) == no updates
Laptop --> File Server == updates
File Server --> Laptop == updates
Laptop --> Workstation (post NVidia driver, None visual effects) == updates
File Server --> Workstation (post NVidia driver, None visual effects) == updates
Laptop --> Workstation (post NVidia driver, Extra visual effects) == updates
File Server --> Workstation (post NVidia driver, Extra visual effects) == updates

Again I want to stress nothing had been done to Workstation other than
doing a clean install of Ubuntu 9.04 amd64, installing the NVidia
driver, and Updating the software.

Hope this helps,

Mike

-- 
Compiz / vnc screen refresh with nvidia-restricted driver/VirtualBox/ATI fglrx driver
https://bugs.launchpad.net/bugs/353126
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