From: Tristan Croll (tristan.croll_at_qut.edu.au)
Date: Thu Nov 17 2011 - 00:29:45 CST

Lam,

In that case, *definitely* try disabling the X11 Composite extension.

sudo gedit /etc/X11/xorg.conf

Then add to that file:

Section "Extensions"
        Option "Composite" "Disable"
EndSection

Cheers,

Tristan

From: owner-vmd-l_at_ks.uiuc.edu [mailto:owner-vmd-l_at_ks.uiuc.edu] On Behalf Of lam nguyen
Sent: Thursday, 17 November 2011 2:21 PM
To: Ajasja Ljubetič
Cc: vmd-l_at_ks.uiuc.edu
Subject: Re: vmd-l: VMD slows down at multiple windows

I have VMD 1.9. I have tried running it on ubuntu, kubuntu and mint. I installed these three OS' to test which one I like most. I have VMD slows-down problem with all three systems. My Nvidia card is quadro FX 580. I don't think I run out of memory because I have this problem even right after restarting computer.

Lam
On Tue, Nov 15, 2011 at 1:08 AM, Ajasja Ljubetič <ajasja.ljubetic_at_gmail.com> wrote:
Hi,

I think you forgot to mention some crucial information: Which OS are you running, what VMD version and which Nvidia card?

so I don't think power is the problem.

Yes, if power would be the problem, the computer would probably just reset. Perhaps you are running out of system or GPU memory?
Ajasja

On Mon, Nov 14, 2011 at 23:51, lam nguyen <lamvn08_at_gmail.com> wrote:
Hi all,

There is an annoying VMD problem with my desktop. If I open several VMD windows, from the third one they slow down a lot. It is a new machine so I don't think the power is the problem. Because my 4 years old laptop can handle many VMD windows without slowing them down. I wonder if this has to do with Nvidia card?

Is there anyone having the same trouble?

Lam