DL Visualize v2.5 - FAQ/Known Problems
All Machine Types
- For large atoms the labels are sometimes not far enough from the centre
of the atom to be outside the sphere surface. The result is that they
- The load module seems to be quite slow and needs improving.
Supercell is also quite slow when acting on large slabs.
- If you delete all the models then the viewer isn't cleared but still
displays the last model, even though it no longer exists.
- The 2D viewer fails to display a plot and just shows a black background,
possibly with an error message about insufficient colours. This has so
far been seen on Linux and Compaq machines with 8 bit displays. Most
modern PCs have graphics cards capable of showing more than 256 colours,
so on Linux the solution is to reset the X server to use more colours.
On other Unix systems you need to get a better graphics card.
- The warning message, BF SYMMETRY ADAPTED-INFO MODIFIED BY
BAND-CALL NEWK, that CRYSTAL generates when running band
structure calculations (also band + DOS) is normal and can be
safely ignored with DLV.
- DLV tries to open a web browser when the documentation is
accessed via the help menu. By default this is Mozilla on Linux
and Netscape on other Unix systems. This can be changed by
altering the DLV_BROWSER enivironment variable in the
startup script. This has not been tested with browsers other than
Mozilla/Netscape and may also require changes to
- If dialog widgets have buttons labelled UI_OK/UI_CANCEL rather than
Ok/Cancel, try adding setenv LANG C to the
startup script ($DLV_ROOT/bin/dlv).
- When using the wheel on a wheel mouse as the middle button you
may see error messages from OMenum about invalid enum
object values involving Root...ViewEvents.buttonType. This
is because you have accidently rotated the wheel and DLV does not
recognise these mouse events. These errors can be ignored.
- Error while loading shared libraries: libg2c.so.0
This library is usually included in gcc-g77 package on systems that use
gcc v3. On newer systems that use gcc v4 (e.g. SuSE v10) this library is
in compat-g77 (or equivalent for your distribution). In either case the
appropriate package needs to be installed. UPDATE - openSUSE 10.3 no
longer seems to include this package, you will need to install the
one from the downloads URL you have been sent.
- Error while loading shared libraries: libstdc++.so.5
This is the C++ library for gcc v3 systems. Newer distributions using gcc
v4 should have a compatibility package installed that provides this
library. If it is missing you will need to install the appropriate
package (compat-libstdc++ on SuSE 10).
- Error while loading shared libraries: libXm.so.3
DLV v2.5 uses the openmotif-2.2 libraries. Some newer distributions
(e.g. SuSE 10.2, Fedora 5) are now using openmotif-2.3 (libXm.so.4)
and may be missing libXm.so.3. If your distribution doesn't provide an
openmotif-2.2 library package (such as openmotif22-libs on SuSE 10.2)
then you will probably need to contact us for a fix.
- Font problems on Debian with Xorg v7.0. This is a problem with the Debian
distribution. Please read the Debian bug lists for information on how to
fix these issues.