Qckvu3 slow to redraw demo5.gds

One of our clients reported a problem he experienced on his network. Our example file (demo5.gds - 1MB) took over 1 minute to redraw on his RHEL5 workstation. However, when redirecting the display to his MAC or PC, the redraw took under a second.

We asked the client to run a few basic diagnosis commands to see if any libraries are missing and whether the environment variables are set properly.

uname -a
Linux dambra-ws 2.6.18-371.4.1.el5 #1 SMP Wed Jan 8 18:42:07 EST 2014 x86_64 x86_64 x86_64 GNU/Linux

ldd qckvu3.exe
[1358][dambra@dambra-ws:~]$ ldd /brewhouse/cad4/qckvu_v382/bin/qckvu3.exe
        linux-vdso.so.1 =>  (0x00007fff73dfd000)
        liblayerdlg64.so => not found
        libqckoa64.so => not found
        liboaDM.so => not found
        liboaBase.so => not found
        liboaPlugIn.so => not found
        liboaTech.so => not found
        liboaDesign.so => not found
        liboaCommon.so => not found
        liboaRQXYTree.so => not found
        libXt.so.6 => /usr/lib64/libXt.so.6 (0x0000003208800000)
        libX11.so.6 => /usr/lib64/libX11.so.6 (0x00000031f5e00000)
        libXext.so.6 => /usr/lib64/libXext.so.6 (0x00000031f6600000)
        libnsl.so.1 => /lib64/libnsl.so.1 (0x00000031fc000000)
        libSM.so.6 => /usr/lib64/libSM.so.6 (0x00000031fe000000)
        libICE.so.6 => /usr/lib64/libICE.so.6 (0x00000031fd000000)
        libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003207400000)
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00000031f4a00000)
        librt.so.1 => /lib64/librt.so.1 (0x00000031f4e00000)
        libm.so.6 => /lib64/libm.so.6 (0x00000031f3e00000)
        libc.so.6 => /lib64/libc.so.6 (0x00000031f3a00000)

We didn't see any issues with the information.

The user was using the GNOME desktop and the solution was to re-configure the video card.

Go to the System > Administration > Display and under the Hardware tab change the Video Card Configuration from:

nvidia- Vendor-supplied driver for nvidia cards
to:
nv - nVidia Riva 128, RIVA TNT, GeForce, nForce, and QUADRO cards

Then reboot and the Qckvu3 viewer had no delay issues during the redraw.