Repetier Host 2.0.5 crashes on view gcode generated by Slic3r

Comments

• Repetier

  January 2018

  See first lines in log. You see it selected the microsoft generic OpenGL driver. That one always crashes sooner or later.
  
  So th ebig question is how to convince OpenTK to select the OpenGL driver of your graphic card. On laptops this often depends on the energy saving settings or graphic driver setting. If you set it to full powe rit often switches to use the right driver instead.
• guffy

  January 2018

  thanks for answer. it's not laptop, it's ordinary desktop pc.
  i had guess that it looks like some issue with opengl, but it's interesting that when the application shows STL model or gcode sliced by Cura - it works almost well, no issues with rendering. only gcode produced by slic3r inspires crash
  
• guffy

  January 2018

  by the way, i had launched repetierhost.exe from commad line window and didn't see any output from them to the console. is it writes a log to some file? or i have to explicitly eneble tracing by a command line switch?
  
  
• Repetier

  January 2018

  I mean the log window in host, the lower part with the output. there you see it used generic 1.1. Host requires 1.5 or higher to work good. Not sure why OpenTK sometimes does not choose a available good OpenTK driver. That is the library we use for OpenGL visualization. Cura is written in a different language and uses a different library. All I can say is that this often happens when a pc has 2 graphic cards and on laptops and that graphic card and power saving settings can have an influence on it.
• guffy

  January 2018 edited January 2018

  oh, i see - i didn't find most obvious place
  
  that's interesting. i don't know how to you initialized and used the opentk, i'm not familiar with opengl and don't use c# last years.
  but simplest opentk sample i have made on my pc (added opentk as nuget package) shows that it looks like opentk can use intel's opengl 3.1 on my machine.
  And it's true - open gl extension viewer 5.0.9 also says that supported version is 3.1 (driver 9.17.10.4459 from 19/05/2016)
  
  the opentk dll that nuget downloads has version 2.0.0.0
  the opentk shipped with repetierhost looks like has version 1.2.2336.6514
  may be it's the reason
  
  (i had mean gcode files generated by cura, not cura application itself. those gcodes don't inspire the crash)
  
  
  

  

  
  
  
  
  
  
• Repetier

  January 2018

  Intersting. I was using OpenTK.Next which was the official "hot" version with most improvements. Seems like it is not hot any more. Have send you a pm with a test version using OpenTK 2.0. Please test if it works. We use GLControl and not GameWindow so it might still have problems or hopefully not.
• guffy

  January 2018

  thank you very much for support, especially on weekend
  i have got your file. it's really has opentk and glcontrol ver 2.0, repetierhost loads it (i checked with process explorer)
  unfortunatelly this doesn't help.
  glcontrol still initialized to use opengl 1.1.
  thank you anyway
  
  later i will try to find an example how to build simplest application with glcontrol. i will share results
  
  
• Repetier

  January 2018

  That would be great, because I have no pc with that problem. When I'm back I will post you how it gets initialized at the moment.
• Repetier

  January 2018

  Here what I use:
  
  

              if (Main.main != null && Main.main.ThreeDSettings.AntiAlias)

                  mode = new GraphicsMode(mode.ColorFormat.BitsPerPixel, 16, 0, 4, 0, 2, false);

              mode = new GraphicsMode(mode.ColorFormat.BitsPerPixel, 32, 0, 4, 0, 2, false);

              gl = new OpenTK.GLControl(mode,1,5,GraphicsContextFlags.ForwardCompatible);

  
  

  differs if antialias is on or off (hope you have it off).

  Important part is double buffering and RGB color.
• Repetier

  January 2018

  Just forgot, there is no official GLControl working with 2.0 so I used OpenTK.GLControl_IK which matches and works (ok for me:-).
• guffy

  January 2018

  hi
  I have made the sample. it looks like it works well.
  I also had used GLControl_IK
  
  
  packed solution https://drive.google.com/open?id=1Tpteo_T3JTOvEd0RDWubGEaLLkNhJUIg
  
  
• guffy

  January 2018

  that's funny. i have changed initilization code as yours, but it still work properly.
  
  
  i can make guess that may be an additional componet (GDI+?) in your project indirectly initiliaze opengl and then opentk fails
  
• guffy

  January 2018

  byt the way. i had tested repetier host you had gave me on my work PC. it corretly detected opengl 4.5 on intel hd 630
  
• Repetier

  January 2018

  Have rechecked it and I have 2 versions and copied it from the unused :-(
  
  Th eone used uses just new GLControl(mode); that has opengl context 1.0 as default so 1.1 would match. Have now changed it to use 1.5 forward compatible in the hope that it then is forced to use the real driver, which seems to work for you so my hope is that this is the reason.
  
  Have send you a pm with download link for testing.
• 3DLars

  January 2018

  First, thanks for an awesome printer application! 
  
  Unfortunately, I also have this problem, it worked previously, but no longer for some reason. My CuraEngine slicer works fine, but Slic3r crashes the application.
  I use an older computer together with my 3d Printer with an Intel Core I3 M 330, running Windows 10.
  Intel no longer supports this processor and hence not a driver for the CPU build-in graphic adapter on Windows 10 so that it can run OpenGL. So I have no way of Getting Open GL up and running, or don't know how. 
  
  Is it not possible to handle the exception in the application. Or, alternatively implement a 'top level exception handler' so that the application does not crash?
  I also use Repetier Host v2.0.5
• Repetier

  January 2018

  What does slic3r crashes application mean? Crashes slic3r or does host crash when reading the sliced result?
  
  In the later case you can disable filament and travel visualization (in toolbar the 2 eyes) and it will not try to show them and should hence not crash. Drawback of course you see no preview but that can only be solved by having a OpenGL driver > 1.5. For printing you should confider using repetier-server so a crash of host does not stop printing. Host can print and connect to printer through the server.
• guffy

  January 2018

  hi
  unfortunatelly new version dosn't help
  the issue somewhere deeper. You properly init GLControl, but WGL somewhy doesn't properly get entry opints of GL functions and doesn't load intel's GL dll
  Repeater host (GL control constructor, obtaining entry points, loaded modules):
  
  
  
  
  Test application (i ensured that it also worked as x64 process):
  
  
  
  
  
• guffy

  January 2018 edited January 2018

  so it looks like now it's not blame of RH. i guess something wrong with Windows or Intel's OpenGL, but i'm not sure.
  I made a test:
  1. renamed original repetierhost.exe -> repetierhost1.exe
  2. copied my application to C:\Program Files\Repetier-Host and renamed  it to repetierhost.exe
  3. started both.
  
  Also i copied entire RH to D :\Repetier-Host. didn't help
  
  so it not path, not bitness, not opentk dlls. i have no idea at the moment
  
  
  
  
  
• Repetier

  January 2018

  I only remember it happening with intel HD 3000 graphic cards. Have also an other intel graphic card that works without the problem. So at least this driver is prone of the problem.
  
  Question is still why it works for your test and not host. In your sample you had samples =4 which is not the case for the host unless you enable anti alias in preferences and restart. Maybe worth a try.
  
  The way to wgl entry points seems identical but result differs, so really hard to say why both behave different if everything else seems the same.
• guffy

  January 2018 edited January 2018

  i changed depth to 16 and samples to 0 in my code. it still works
  and enabling AA in RH doesn't help
  
• guffy

  January 2018

  haha!! i have solved it!
  i thought that windows somehow "banned" RH from using opengl. by hash, version info or something else.
  so i took resource hacker and removed version info (by the way it would be nice to properly fill it). it didn't help. then i replaced manifest (took from my application) - didn't help.
  then i restored the file and just removed manifest at all. it helps!!
  i don't know yet how to make proper manifest for RH. at least you may deploy it as external .manifest file (so people with issue may try to just remove it)  
  
  
  
• guffy

  January 2018

  https://github.com/kivy/kivy/issues/5071#issuecomment-295185265
  https://github.com/LWJGL/lwjgl/issues/119#issuecomment-173983180
  https://github.com/libretro/RetroArch/issues/4580#issuecomment-358012766
  
  
  
  
• Repetier

  January 2018

  Great work.
  
  Found where the version info is stored and set it for next update.
  
  One solution for manifest I found is removing windows 10 from compatible versions:
  

  
  

        <!-- for windows 10 This Id value indicates the application supports Windows Threshold functionality-->

        <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>

  Seems to work for HD3000.

  Main reason on the other side for the manifest is to mark the app as dpi aware

        <dpiAware>true</dpiAware>

  so it works on higher dpi devices with sharp images.

  Can you try if removing windows 10 compatibilty helps getting it run under W10?
• guffy

  January 2018

  i have tried with various manifests. even with almost empty like that:
  <?xml version="1.0" encoding="utf-8"?>
  <asmv1:assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <assemblyIdentity version="1.0.0.0" name="RepetierHost.exe" type="win32" processorArchitecture="Amd64" />
  </asmv1:assembly>
  for me nothing works.
  only removing the manifestresource
  
  
  
• guffy

  January 2018

  My application works with manifest. RH work only without manufest. i don;t know why
  
  
  
• Repetier

  January 2018

  Ok, so since I need it for more other computers for the dpi settings, i will investigate how to make it an external file so users can delete it. I might add a warning on startup if it detects the microsoft gdi driver, so users are aware of the problem. Or I delete the file myself and restart host, but with the permission problems in program folder  I think it might be a problem. So I might better stick to the hint and open explorer in right directory.
• guffy

  January 2018 edited January 2018

  you have a few ways. you may try to make manifest as an external file.
  suddenly microsoft isn't too clear with this
  https://msdn.microsoft.com/ru-ru/library/windows/desktop/aa374191(v=vs.85).aspx
  because they define "file name syntax". and same time say that "Application manifests should be included as a resource in the application's EXE file or DLL."
  
  so you can put 2 binaries to the installation (you can try to make small exe and move out entire code to repetierhost.dll).
  or even make separate installationn for people who faced the issue.
  i don't know which way is better.
  
  
  
  
  
• Repetier

  January 2018

  Ok, will investigate and think about it.
  
  Anyway a big thank for your help and finding a solution, also we do not understand why that has an influnce on OpenGL selection.
• 3DLars

  January 2018

  Thanks for your suggestion of disabling the filament and travel visualization, it works. It crashes after reading the sliced result, when visualization is enabled.