Octave on XU4

[ardexess]

Hello,

Recently I tried to run Octave software on ODROID XU4 device. I have installed it using sudo apt install command without eny errors. When I try to use some graphical commands (like uicontrol) I get following errors:

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MESA-LOADER: failed to retrieve device information
lbGL error: unable to load driver: exynos_dri.so
lbGL error: driver pointer missing
lbGL error: failed to load driver: exynos

I have done some research where I found out that problem is probably related to MESA and MALI drivers.

Moreover Octave doesn't run in GUI mode, which in my opinion is caused by the same reason as aforementioned problem. Octave run non-graphical commands just well in console mode.

ODROID XU4 is running UBUNTU 16.04.3-4.14 (20171212) release from wiki.odroid.com.
When I was trying to get over that I found out that command:

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glmark2-es2

gives following output:

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glmark2-es2: command not found

I really appreciate any help on solving this problem.

[odroid]

"sudo apt install glmark2-es2" to test the Mali GPU driver functionality.

BTW, try the latest Ubuntu 18.04 image if you don't mind.
If Octave uses Qt5 library, you have to use the Ubuntu 18.04 image which has a built-in customized Qt5 package to enable the Mali GPU.
https://wiki.odroid.com/odroid-xu4/os_i ... 4/20180501

Also check this thread too.
viewtopic.php?f=95&t=31478

[meveric]

ODROID XU4 is running UBUNTU 16.04.3-4.14 (20171212) release from wiki.odroid.com.

The version of Octave used in Ubuntu 16.04 still uses QT4 which requires OpenGL, ODROIDs do not support OpenGL only OpenGL ES.
The version of Octave used In Ubuntu 18.04 uses QT5 and you might have a chance that it's running on OpenGL ES cause of this.

[odroid]

Yes, it works on Ubuntu 18.04.

[ardexess]

Thanks a lot for Your help. As You have suggested Octave (4.2.2) started in GUI mode under UBUNTU 18.04(20180501). However uicontrol still does not work.
As far as i know these graphic functions work only with qt and FLTK graphics toolkits. The only available graphic toolkit I got in Octave is GNUPLOT:

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>> available_graphics_toolkits
ans =
{
  [1,1] = gnuplot
}

So now I have to figure out how to get these toolkits installed in Octave.
Cheers

[odroid]

I think Octave seems to utilize a Java engine here and there.
Try to use the Java 8 from Oracle instead of the default OpenJDK.

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sudo add-apt-repository ppa:webupd8team/java                             
sudo apt-get update                                                      
sudo apt-get install oracle-java8-installer

[ardexess]

It doesn't work for me :/
Did it work for You?

[odroid]

No.
This is my first time to run Octave.
I don't know how to enable/use the uicontrol.

According to their wiki page, it seems to runs on "Qt" graphics toolkit.
https://wiki.octave.org/Uicontrols
But I have no idea what "graphics toolkit" means.

I have the same issue.

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octave:1> available_graphics_toolkits
ans =
{
  [1,1] = gnuplot
}

There is no "qt" option.

[odroid]

It seems to be worth to try to build the Octave from source code on XU4.
http://wiki.octave.org/Octave_for_Debia ... rom_source
But it may take a couple of days probably.

[ardexess]

I have found following note on the octave release notes:

Octave now uses OpenGL graphics with Qt widgets by default. If OpenGL
libraries are not available when Octave is built, gnuplot is used.

According to the sentence system must have OpenGL to implement qt toolkit in the octave. So far as I know Odroid dedicated versions of UBUNTU use OpenGL ES. Maybe thats the problem. And maybe its possible somehow to utilize this OpenGL ES during build of Octave? That's just my loose observation, I'm not an expert in Unix systems. I will try with ppa:octave/stable.
Anyway thanks for collaboration.
Cheers

[odroid]

I think there is a solution to enable Qt5 toolkit while building the source code. I will try it early next week if I have a spare time.
https://savannah.gnu.org/bugs/?53529#comment5

[ardexess]

I have build 4.4.0 from source with preinstalled all Qt 5 packages. Still not working (only gnuplot available). No more ideas for today

[odroid]

Did you create a couple of symlinks for Qt5Help in the proper directory /usr/lib/arm-linux-gnueabihf/?

[ardexess]

No. How to do it?

[odroid]

I don't know well.
According to the link I gave you in previous post,
Two symlinks were required in my case.

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sudo ln -s  /usr/lib/x86_64-linux-gnu/libQt5Help.so.5.5.1 /usr/lib/x86_64-linux-gnu/libQt5Help.so
sudo ln -s /usr/lib/libqt5scintilla2.so.12.0.1 /usr/lib/libqscintilla2-qt5.so

Since the guide was written for x86 64bit platform, you need to change it for ARM HF platform.

[odroid]

After installing a missing package, I could see an enabled Qt5 option in "configure" output.
sudo apt install qttools5-dev-tools
I am building Octave 4.4.0 now.

Update: Build was successful. It looks better now.

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>> available_graphics_toolkits
ans =
{
  [1,1] = fltk
  [1,2] = gnuplot
}

But I have no idea how to test fltk toolkit.
We might need to investigate why qt doesn't exist in the list too.

[ardexess]

Woow, nice. These graphic should work under fltk toolkit too. May You type:

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graphics_toolkit("fltk")

to chose fltk, and then if

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uicontrol

command works?

Edit:
I got an error, while having qttools5-dev-tools installed:

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sudo ln -s  /usr/lib/x86_64-linux-gnu/libQt5Help.so.5.5.1 /usr/lib/x86_64-linux-gnu/libQt5Help.so
ln: failed to create symbolic link '/usr/lib/x86_64-linux-gnu/libQt5Help.so': No such file or directory

[odroid]

Don't make the symlinks. I didn't touch the libQt5Help stuff.
Below steps were enough to build it again.

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sudo apt update
sudo apt upgrade
sudo apt install qttools5-dev-tools
.configure
make -j3
sudo make install

[ardexess]

Still can't get to what You have achieved. I have started from reinstalling UBUNTU 18.08, updates from software updater, installing packages for octave compilation (including qttools5-dev-tools), downloading source code (version 4.4.0). After all these I got octave without GUI mode :

octave: GUI features missing or disabled in this build

Still no FLTK toolkit available.

I think there is something I'm missing. Moreover configuration gives me following output:

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...
Warning: OpenGL libs (GL and GLU) not found. OpenGL graphics will be disabled.
Warning: Qt libraries not found; disabling Qt GUI
Warning: FLTK config script not found. FLTK toolkit will be disabled...

[odroid]

Can you run "es2gears" or "glmark2-es2" now?
Did you install most of the necessary dependencies with this command?

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sudo apt build-dep octave

[ardexess]

Yes these commands works. After installation of build-dep octave dependiences, configuraiton results looks much better (No FLTK error). However making and installing octave on previously installed octave (without theses dependiences) didn't work.
I'm trying now again from clean system.

EDIT:
Still not working

[odroid]

Let's check one by one.

Update the system after clean installing OS image.

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sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo reboot

After rebooting, check OpenGL-ES functionality with a Qt example.

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sudo apt-get install qtbase5-examples
/usr/lib/arm-linux-gnueabihf/qt5/examples/opengl/hellogl2/hellogl2

Build Octave 4.4

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sudo apt-get build-dep octave
sudo apt install qttools5-dev-tools
mkdir octave
cd octave/
wget https://ftp.gnu.org/gnu/octave/octave-4.4.0.tar.gz
tar xfz octave-4.4.0.tar.gz
cd octave-4.4.0/
./configure
make
sudo make install

Try that and let me know the result.
You have to check the Octave version in UI menu Help -> About Octave. It must be 4.4.0.

[ardexess]

Hello there, I have done everything as You said. Qt example works, however octave didn't even build with GUI:

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octave:1> available_graphics_toolkits
ans =
{
  [1,1] = gnuplot
}

octave:2> exit
odroid@odroid:~/octave/octave-4.4.0$ octave --force-gui
octave: GUI features missing or disabled in this build

[odroid]

Something could be wrong in my record.
I will freshly install OS image and try it again early next week since I have some urgent projects now.


Update:
After force reinstalling "qttools5-dev" package sudo apt install qttools5-dev --reinstall, Qt5 GUI was configured well. I could run the GUI if I selected an icon on Menu -> Education -> GNU Octave.

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Octave is now configured for armv7l-unknown-linux-gnueabihf                                                      
                                                                                                                 
  Source directory:              .                                                                               
  Installation prefix:           /usr/local                                                                      
  C compiler:                    gcc  -pthread -fopenmp  -Wall -W -Wshadow -Wformat -Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wcast-align -Wcast-qual -g -O2
  C++ compiler:                  g++  -pthread -fopenmp  -Wall -W -Wshadow -Wold-style-cast -Wformat -Wpointer-arith -Wwrite-strings -Wcast-align -Wcast-qual -g -O2
  Fortran compiler:              gfortran -g -O2                                                                 
  Fortran libraries:              -L/usr/lib/gcc/arm-linux-gnueabihf/7 -L/usr/lib/gcc/arm-linux-gnueabihf/7/../../../arm-linux-gnueabihf -L/usr/lib/gcc/arm-linux-gnueabihf/7/../../../../lib -L/lib/arm-linux-gnueabihf -L/lib/../lib -L/usr/lib/arm-linux-gnueabihf -L/usr/lib/../lib -L/usr/lib/gcc/arm-linux-gnueabihf/7/../../.. -lgfortran -lm
  Lex libraries:
  LIBS:                          -lutil -lm
  LDFLAGS:
  Extra LDFLAGS:

  AMD CPPFLAGS:
  AMD LDFLAGS:
  AMD libraries:                 -lamd
  ARPACK CPPFLAGS:
  ARPACK LDFLAGS:
  ARPACK libraries:              -larpack
  BLAS libraries:                -lblas
  BZ2 CPPFLAGS:
  BZ2 LDFLAGS:
  BZ2 libraries:                 -lbz2
  CAMD CPPFLAGS:
  CAMD LDFLAGS:
  CAMD libraries:                -lcamd
  CARBON libraries:
  CCOLAMD CPPFLAGS:
  CCOLAMD LDFLAGS:
  CCOLAMD libraries:             -lccolamd
  CHOLMOD CPPFLAGS:
  CHOLMOD LDFLAGS:
  CHOLMOD libraries:             -lcholmod
  COLAMD CPPFLAGS:
  COLAMD LDFLAGS:
  COLAMD libraries:              -lcolamd                                                                        
  CURL CPPFLAGS:
  CURL LDFLAGS:
  CURL libraries:                -lcurl
  CXSPARSE CPPFLAGS:
  CXSPARSE LDFLAGS:
  CXSPARSE libraries:            -lcxsparse
  DL libraries:                  -ldl
  FFTW3 CPPFLAGS:
  FFTW3 LDFLAGS:
  FFTW3 libraries:               -lfftw3_threads -lfftw3
  FFTW3F CPPFLAGS:
  FFTW3F LDFLAGS:
  FFTW3F libraries:              -lfftw3f_threads -lfftw3f
  FLTK CPPFLAGS:                 -I/usr/include/cairo -I/usr/include/glib-2.0 -I/usr/lib/arm-linux-gnueabihf/glib-2.0/include -I/usr/include/pixman-1 -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/freetype2
  FLTK LDFLAGS:
  FLTK libraries:                -lfltk_gl -lfltk -lX11
  fontconfig CPPFLAGS:           -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/freetype2 -I/usr/include/libpng16
  fontconfig libraries:          -lfontconfig -lfreetype
  FreeType2 CPPFLAGS:            -I/usr/include/freetype2 -I/usr/include/libpng16
  FreeType2 libraries:           -lfreetype
  GLPK CPPFLAGS:
  GLPK LDFLAGS:
  GLPK libraries:                -lglpk
  HDF5 CPPFLAGS:                 -I/usr/include/hdf5/serial
  HDF5 LDFLAGS:                  -L/usr/lib/arm-linux-gnueabihf/hdf5/serial
  HDF5 libraries:                -lhdf5
  Java home:                     /usr/lib/jvm/java-11-openjdk-armhf
  Java JVM path:                 /usr/lib/jvm/java-11-openjdk-armhf/lib/server
  Java CPPFLAGS:                 -I/usr/lib/jvm/java-11-openjdk-armhf/include -I/usr/lib/jvm/java-11-openjdk-armhf/include/linux
  Java libraries:
  KLU CPPFLAGS:
  KLU LDFLAGS:
  KLU libraries:                 -lklu
  LAPACK libraries:              -llapack
  LLVM CPPFLAGS:
  LLVM LDFLAGS:
  LLVM libraries:
  Magick++ CPPFLAGS:             -I/usr/include/GraphicsMagick
  Magick++ LDFLAGS:
  Magick++ libraries:            -lGraphicsMagick++ -lGraphicsMagick
  OpenGL libraries:
  PCRE CPPFLAGS:
  PCRE LDFLAGS:
  PCRE libraries:                -lpcre
  PortAudio CPPFLAGS:
  PortAudio LDFLAGS:
  PortAudio libraries:           -lportaudio -lasound -lm -lpthread
  PTHREAD flags:                 -pthread
  PTHREAD libraries:
  QHULL CPPFLAGS:
  QHULL LDFLAGS:
  QHULL libraries:               -lqhull
  QRUPDATE CPPFLAGS:
  QRUPDATE LDFLAGS:
  QRUPDATE libraries:            -lqrupdate
  Qt CPPFLAGS:                   -I/usr/include/arm-linux-gnueabihf/qt5/QtNetwork -I/usr/include/arm-linux-gnueabihf/qt5 -I/usr/include/arm-linux-gnueabihf/qt5/QtOpenGL -I/usr/include/arm-linux-gnueabihf/qt5 -I/usr/include/arm-linux-gnueabihf/qt5/QtPrintSupport -I/usr/include/arm-linux-gnueabihf/qt5 -I/usr/include/arm-linux-gnueabihf/qt5/QtHelp -I/usr/include/arm-linux-gnueabihf/qt5 -I/usr/include/arm-linux-gnueabihf/qt5/QtWidgets -I/usr/include/arm-linux-gnueabihf/qt5 -I/usr/include/arm-linux-gnueabihf/qt5/QtGui -I/usr/include/arm-linux-gnueabihf/qt5 -I/usr/include/arm-linux-gnueabihf/qt5/QtSql -I/usr/include/arm-linux-gnueabihf/qt5 -I/usr/include/arm-linux-gnueabihf/qt5/QtCore -I/usr/include/arm-linux-gnueabihf/qt5
  Qt LDFLAGS:
  Qt libraries:                  -lQt5Network -lQt5OpenGL -lQt5PrintSupport -lQt5Help -lQt5Widgets -lQt5Gui -lQt5Sql -lQt5Core -lqscintilla2_qt5
  Qt moc:                        moc -qt5
  Qt uic:                        uic -qt5
  Qt rcc:                        rcc -qt5
  Qt lrelease:                   lrelease -qt5
  Qt qcollectiongenerator:       qcollectiongenerator -qt5
  Qt qhelpgenerator:             qhelpgenerator -qt5
  READLINE libraries:            -lreadline
  Sndfile CPPFLAGS:
  Sndfile LDFLAGS:
  Sndfile libraries:             -lsndfile
  SuiteSparse config libraries:  -lsuitesparseconfig
  SUNDIALS IDA CPPFLAGS:
  SUNDIALS IDA LDFLAGS:
  SUNDIALS IDA libraries:
  SUNDIALS NVECTOR CPPFLAGS:
  SUNDIALS NVECTOR LDFLAGS:
  SUNDIALS NVECTOR libraries:
  TERM libraries:                -lncurses
  UMFPACK CPPFLAGS:
  UMFPACK LDFLAGS:
  UMFPACK libraries:             -lumfpack
  X11 include flags:
  X11 libraries:                 -lX11
  Z CPPFLAGS:
  Z LDFLAGS:
  Z libraries:                   -lz

  Default pager:                 less
  gnuplot:                       gnuplot

  Build Octave Qt GUI:                  yes (version: 5)
  JIT compiler for loops:               no
  Build Java interface:                 yes
  Build static libraries:               no
  Build shared libraries:               yes
  Dynamic Linking:                      yes (dlopen)
  Include support for GNU readline:     yes
  64-bit array dims and indexing:       no
  64-bit BLAS array dims and indexing:  no
  OpenMP SMP multithreading:            yes
  Truncate intermediate FP results:     yes
  Build cross tools:                    no
  Build docs:                           yes
                                                                                                                 
configure: WARNING: OpenGL libs (GL and GLU) not found.  OpenGL graphics will be disabled.
configure: WARNING: SUNDIALS NVECTOR serial library not found.  Solvers ode15i and ode15s will be disabled.
configure: WARNING: SUNDIALS IDA library not found.  Solvers ode15i and ode15s will be disabled.
configure: WARNING: JAVA_HOME environment variable not initialized.  Auto-detection will proceed but is unreliable.
configure: 
configure: NOTE: Libraries or auxiliary programs may be skipped if they are not found
configure: NOTE: OR if they are missing required features on your system.

But, there was no "fltk" option even "fltk" build option was configured well.
I regret I flashed the OS image to the working eMMC.
I will try to find what was missing.

[odroid]

I found what was wrong.

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sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo reboot
sudo apt-get build-dep octave
sudo apt install qttools5-dev --reinstall
sudo apt install libfltk1.3-dev --reinstall
sudo apt install libglu1-mesa-dev -y
mkdir octave
cd octave/
wget https://ftp.gnu.org/gnu/octave/octave-4.4.0.tar.gz
tar xfz octave-4.4.0.tar.gz
cd octave-4.4.0/
./configure 
make -j3
sudo make install
octave --gui

And you will see this

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>> available_graphics_toolkits
ans =
{
  [1,1] = fltk
  [1,2] = gnuplot
}

But I am not sure whether the fltk toolkit works or not since I have zero experience of Octave.

[ardexess]

Thank You for all Your effort in participating to the topic. Suggestions You have made works, and I have FLTK toolkit available:

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>> available_graphics_toolkits
ans =
{
  [1,1] = fltk
  [1,2] = gnuplot
}

However when I type uicontrol (function for graphic interface: buttons, labels etc) I got the same error as in the first post:

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>> uicontrol
MESA-LOADER: failed to retrieve device information
lbGL error: unable to load driver: exynos_dri.so
lbGL error: driver pointer missing
lbGL error: failed to load driver: exynos

[odroid]

Ummm.. the fltk seems to support the OpenGL only instead of OpenGL-ES.
OpenGL is not available on ODROID platforms.

But it is very worth to try this OpenGL wrapper GL4ES. It may take less than 15 minutes.

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#Install a couple of packages to build gl4es source
sudo apt install git cmake

#Download source code
git clone https://github.com/ptitSeb/gl4es
cd gl4es

#Edit line 34 "#define DEFAULT_ES 2" to force GLES 2.0 to avoid mess with env. variables.
nano ./src/gl/init.c

#Compile the source code. It took 2~3 minutes
cmake . -DODROID=1; make GL

#Install
sudo cp ./lib/libGL.so.1 /usr/lib/arm-linux-gnueabihf/.

Reboot your system and check the fltk functionality and let me know the result.

[meveric]

you can't mix OpenGL and OpenGL ES.
If Qt5 uses OpenGL ES, you can not run an OpenGL application in the same context.

[odroid]

Fortunately, "uicontrol" seems to be a fully separated GTK/X11 application and it works well probably.
I've just tested and it worked.

[ardexess]

After succesfull make of GL4ES I have still the same error.
But, after:

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cmake . -DODROID=1; make GL

Shouldn't I have to install it somehow?

[odroid]

You had to scroll down little bit to find sudo cp ./lib/libGL.so.1 /usr/lib/arm-linux-gnueabihf/.