[Scilab-Dev] Scilab-5 and rendering a plot under linux

[Simone Mannori]

Bonjour,

unfortunately the Scilab 5 Java graphics pipeline crash with all the
Linux ATI 3D driver (binary and open source) that we have tested.

Jean-Baptiste Silvy is in direct contact with ATI and JOGL developers:
we want to find a way to fix this bug (probably an ATI-Linux driver
issue) as soon is possible.

In the meanwhile you have two alternatives :

- if you disable all the DRI acceleration features, the MESA software
only emulation works. Very, Very slow but Scilab 5 works ;

- install the binary version under Windows. Under Windows Scilab 5 works
with ATI cards perfectly. I personally tested also integrated cards
(ATI, Intel and SIS) with success. 

Unfortunately for Linux users, the average quality of the ATI Linux
driver is not at the same level of the Windows version.

With NVIDIA Scilab 5 works perfectly (Linux, Windows).

I have four laptops with ATI cards (three PCs, one Mac), so I am very
well motivated for this job.

Simone Mannori - Scilab/Scicos Embedded Applications Eng.

On Thu, 2008-03-06 at 11:04 +0100, Collette Yann wrote:
> Hello,
> 
> I've still a lot of problem to render a plot under linux 
> mandriva-2008.0. I'm an unlucky owner of an ati radean 9200 PRO graphic 
> card.
> I've tried to install the latest ati driver obtained from ati.amd.com 
> and scilab-5 hangs when I tried to plot a simple curve (see bug 
> http://www.scilab.org/cgi-bin/bugzilla_bug_II/show_bug.cgi?id=2657).
> So I decided to switch to the x.org ati driver.
> First try: I removed the Load "glx" and Load "dri" options with the 
> "radeon" driver.
> When I enter the command plot(X,Y), an empty plot windows pops up and an 
> error message appears in the console (something like "can't find GLX ...").
> Second try: I added the Load "glx" option and then, the plot windows 
> appears and a loop  of error messages (related to java) appears in the 
> console. The list of messages ended with:
> Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java 
> heap space
> 
> I join a log of the error messages (the log is gzipped and weight 11Mo 
> ungzipped !).
> 
> Yann COLLETTE