Recently a fellow intern finished his internship. For this internship, he wrote some automated fluid simulations in Blender on Linux. I am a Windows user, and my only option for this is running WSL(2).
Everything runs great, except for the last step (which is most important to my work). This last step requires the Blender GUI to run.
I am currently using VcXrsv, installed by following this tutorial: https://dannyda.com/2020/06/15/how-to-launch-gui-software-programs-from-windows-subsystem-for-linux-2-wsl2-how-to-convert-from-wsl-1-to-wsl-2/. I have made sure to allow native OpenGL.
I've managed to run other GUI applications using this x-server , but Blender will not run, instead giving me this error:
Read prefs: /home/pcsmet/.config/blender/2.90/config/userpref.blend
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4732:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5220:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2642:(snd_pcm_open_noupdate) Unknown PCM default
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
Error! Unsupported graphics card or driver.
A graphics card and driver with support for OpenGL 3.3 or higher is required.
The program will now close.
Error: Not freed memory blocks: 14567, total unfreed memory 5.376877 MB
I've read about being able to use your (nvidia) graphics card if you enter the Windows Insiders build + install nvidia's special WSL2 drivers, but I've also read some forum posts about OpenGL not working on WSL2. Also, I'm afraid of Win10's updates' ability to brick pc's, so I'd prefer not to enter the Windows Insiders programme.
Simply, my questions is this: Is it possible to run Blender GUI through WSL2, and if so, how?
I am far from a Linux/WSL wizzkid, and getting this to work is fairly vital to my internship, so any and all help would be greatly appreciated.
It will be possible without X extra XServer like VcXrsv once Microsoft finishes support for graphical applications within WSL2. It will probably take another couple of months, but judging from the demo at the XDC 2020 conference in September, they are pretty close.
https://devblogs.microsoft.com/commandline/whats-new-in-the-windows-subsystem-for-linux-september-2020/#gui-apps
In this video, they show Blender running in a virtual machine, in WSL 2 with X Server, and natively on Windows 10. So it is already possible to run Blender in WSL 2 with properly configured X Server.
https://www.youtube.com/watch?v=Ss71ldXkmQs
Related
I am currently using the linux-x86.img which I downloaded from the documentation page for gem5 (http://www.m5sim.org/Download), but since I was not able to compile the fscanf and fopen commands on this image I was wondering if there is a more recent image which I could download and use instead.
The error message throw when trying to compile the lines with fopen and fscanf are
./obj/edgelist.o: In function loadEdgeArray': edgelist.c:(.text+0x148): undefined reference to __isoc99_fscanf'
./obj/edgelist.o: In function loadEdgeArrayInfo': edgelist.c:(.text+0x20c): undefined reference to __isoc99_fscanf'
collect2: ld returned 1 exit status
make: *** [test] Error 1
This error is thrown when trying to compile from both from qemu as well as gem5.
Here's one setup that generates such an image with Buildroot. I'm a fan of Buildroot because it builds everything from source. I don't understand how fscanf and fopen could fail in that image, but I have tested them in the above setup and they work fine.
Boot used to work in the past, but gem5 X86 full system boot has been broken for likely easy to fix reasons for a few months now as of March 2020 on the gem5 side, although there are efforts in place to fix it, and so likely it will work again soon: https://www.gem5.org/project/2020/03/09/boot-tests.html
Other alternatives include:
https://gem5art.readthedocs.io/en/latest/ which Jason has been pushing and uses Packer to generate disk images
You can also extract working disk images from Docker: https://hub.docker.com/_/ubuntu This requires exporting them to a file to give to gem5.
It is also worth noting that when the gem5.org website migrated from the old Wiki to the new static website setup in Q1 2020, we lost the ability of doing directory listing under http://dist.gem5.org/dist/current/arm/ for some reason, and so devs were forced to list them one by one on the static website... https://www.gem5.org/documentation/general_docs/fullsystem/guest_binaries
I am not sure why the error is no longer occurring for me, but documenting the steps I went through which might have fixed something. I reinstalled Ubuntu18.04 therefore had to rebuild gem5 and I used the parsec image (http://www.cs.utexas.edu/~parsec_m5/x86root-parsec.img.bz2) referenced in this answer Booting gem5 X86 Ubuntu Full System Simulation
Since it took me quite some time to figure out how to get Xtion (Primesense) to work on VMware I thought to share it here with you. (with Kinect I have a problem to let ROS see the device even though VMware has successfully connected it).
roslaunch openni2_launch openni2.launch
Running the above command gave me the error:
Warning: USB events thread - failed to set priority. This might cause loss of data...
I either got a single frame or no frame when running "rviz" and Add --> Image --> Image topic --> /camera/rgb/image_raw
So how do I get video frames in Ubuntu from a Primesense device while using a Virtual Machine (VMware)?
My specs
Windows 7 running VMware 10.0.4 build-2249910
Ubuntu 12.04.5 Precise in VMware
ROS Hydro
The following question pointed me in the right direction: http://answers.ros.org/question/77651/asus-xtion-on-usb-30-ros-hydro-ubuntu-1210/?answer=143206#post-id-143206
In the answer of blizzardroi (not selected answer) he/she mentions that USBInterface should be 0. I reasoned that since my main Machine is Windows, I should set UsbInterface to 1, which indeed solved it.
Solution
Go to /etc/openni2/ (from system folder, not Home) and open PS1080.ini with administrator rights (e.g. sudo gedit PS1080.ini). Search for UsbInterface, remove the ; and change the value to 1. It should look like below:
; USB interface to be used. 0 - FW Default, 1 - ISO endpoints (default on Windows), 2 - BULK endpoints (default on Linux/Mac/Android machines)
UsbInterface=1
Additional
From previous experience it may also be related that your Windows system may need the kinect drivers as well. If the above not works, try to install the following:
(Kinect SDK) https://www.microsoft.com/en-us/download/details.aspx?id=34808
(OpenNI2 Windows) http://structure.io/openni
p.s. Don't forget your drivers for Ubuntu (replace hydro with your ROS version)
sudo apt-get install ros-hydro-openni*
Important
It doesn't solve the error below, but rviz returns video, which means that we can read the data the Primesense device publishes!
Warning: USB events thread - failed to set priority. This might cause loss of data...
Got the same warning from opennni (issued at start by a binary located at Tools/PSLinkConsole) with another sensor.
Solved by starting process as sudo - my guess: to set priority to USB event threads you need root access. :)
I was given a fairly large program to compile and run with extremely vague instructions on how to properly configure my system and install the program. I was told to use a Windows, install Cygwin, navigate to the program's base directory, and type "make". I installed Cygwin on a 64-bit Windows 7 in C:\cygwin64 as the main user (I also installed all of the default packages, plus a few extras) and then ran the makefile included with the program (this worked with no problems). When trying to run the executable with a required file argument, I was simply given the error message "cannot connect to X server." Upon examination of the code, it appears that this error was caused by a line setting display=XOpenDisplay(NULL) and then exiting when this resulted in display == NULL. Earlier, "display" had been declared as a variable of type Display. Is there any way I can get the program to connect to the X server? I have been assured that the installation of the program is extremely easy, but I'm not so sure... Thanks in advance.
Background
I have a C++ program that loads a JVM internally and then uses JNI to call code in the JVM. This runs on multiple platforms including AIX. However, when starting the JVM on AIX everything is fine until I call some code that needs to access native code supplied as part of the JRE. I then run into this error message:
java.lang.UnsatisfiedLinkError: net (Not found in com.ibm.oti.vm.bootstrap.library.path)
The problem is that the JVM cannot find the shared library libnet.so. If I dump the value of the com.ibm.oti.vm.bootstrap.library.path system property from Java code running in the JVM I see that by default (i.e. not me setting it) it has the value:
<jre-base-dir>/lib/ppc/default:<jre-base-dir>/lib/ppc
From the error message I guessed it would be a good idea to change this to include the dir where libnet.so is located. However, this shared library is in <jre-base-dir>/lib/ppc which is already in the path set by com.ibm.oti.vm.bootstrap.library.path, so it seems the error message is incorrect.
Experimenting with different values for this system property makes me believe that it is used by the AIX j9vm to load the internal JVM shared libraries only (like libjclse7b_26.so) but not the native code implementations (like libnet.so).
My fix
To fix my problem I had to change the LIBPATH environment variable (which is AIX the equivalent of LD_LIBRARY_PATH in e.g. Linux).
$ LIBPATH=<jre-base-dir>/lib/ppc:<jre-base-dir>/lib/ppc/j9vm ./myprogram
Questions
Can anyone shed some light on the real purpose of the system property com.ibm.oti.vm.bootstrap.library.path on AIX when using the j9vm JVM?
Is my fix the correct way to solve the problem or should I use some other system property? (I have tried java.library.path but it does not seem to help.)
In my case it show error message:
java.lang.UnsatisfiedLinkError: awt (Not found in com.ibm.oti.vm.bootstrap.library.path)
I fix my problem by
copy /usr/java6_64/jre/lib/ppc64/libawt.so to /usr/java6_64/jre/lib/ppc64/j9vm and create symbolic link libawt.a to libawt.so
I set LD_LIBRARY_PATH
LD_LIBRARY_PATH="/usr/java6_64/jre/lib/ppc64:/usr/java6_64/jre/lib/ppc64/j9vm"; export LD_
LIBRARY_PATH
I just installed RockMongo by extracting all the files to a lampp web folder /opt/lampp/htdocs/rockMongo/. Visiting index.php shows
To make things right, you must install php_mongo module. Here for
installation documents on PHP.net.
I followed the instructions there (I had to install php-pear):
sudo pecl install mongo
Add the following line to php.ini: extension=mongo.so
Now, when I start the web server (apache), I get the following warning, repeated hundreds of times:
Warning: PHP Startup: It is not safe to rely on the system's timezone
settings. You are required to use the date.timezone setting or the
date_default_timezone_set() function. In case you used any of those
methods and you are still getting this warning, you most likely
misspelled the timezone identifier. We selected 'America/New_York' for
'EDT/-4.0/DST' instead in Unknown on line 0
and also this warning a single time:
Warning: PHP Startup: Unable to load dynamic library
'/usr/lib/php5/20090626/mongo.so' - /usr/lib/php5/20090626/mongo.so:
wrong ELF class: ELFCLASS64 in Unknown on line 0
The index page stills shows the same message (which means that class_exists("Mongo") returns false)
I tried putting in the absolute path to mongo.so, but that didn't do anything. What's going on?
edit: I used
$ file /usr/bin/php5
/usr/bin/php5: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.15, stripped
which seems to suggest my php installation is 64 bits, yet when I print out PHP_INT_MAX I get 2147483647 which seems to indicate my installation is 32 bits. How can I know the "bitness" of my php installation?
From the second PHP warning, it looks like you've mixed 32bit code and a 64bit library.
Make sure all the stuff you've downloaded is of the same "bitness" as your PHP installation.