GPU-less install about makie.jl HOT 11 CLOSED

There is CairoMakie now.

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On a headless system without graphics card I installed software rendering and glxgears works fine.
I also installed Makie and it works fine if I use ssh -Y server.

Using xpra you can launch a virtual x server on the headless system and use that (https://help.ubuntu.com/community/Xpra) so you don't need to use ssh -Y

There was one warning:

Warning: GLFW.GLFWError(PLATFORM_ERROR::ErrorCode = 65544, "X11: RandR gamma ramp support seems broken")

You can even use a local xpra and open the display on the remote server, but mouse interaction will produce tons of error messages on the remote julia console.

Next step is to get it working inside Jupyter notebooks... I will let you know if I manage to do that.

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@jpsamaroo wanted to help me get a backend without a gpu running :) So that might work in the near future!

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Indeed, I'm planning on setting up a Cairo+Gtk backend for Makie (Gtk windowing stuff should be optional, to support headless systems). That way we can at least support 2D plotting, and then later on consider adding support for OpenGL for 3D plots (which could be provided by VirtualGL or llvmpipe on systems without proper graphics hardware).

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Could this work with a software renderer? https://stackoverflow.com/questions/7310885/opengl-without-a-graphics-card

Or maybe virtualgl?

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Pretty cool you got that running - and it doesn't even sound that complicated ;)

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It was not that complicated. How do I resize the window opened by Makie from within Julia? My current issue is that the window opened in xpra is tiny and therefore it is saved as a tiny png.

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You could try passing a resolution to the Scene? For example, sc = Scene(resolution = (1920, 1080))

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p = Scene(resolution = (1920, 1080))
volume!(p, rand(32, 32, 32))
save("make_test.png", p)

works on my machine, but the png is still tiny on the headless machine.

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Hm, the only reason it would ignore this, if it somehow thinks that Juno is there!
https://github.com/JuliaPlots/AbstractPlotting.jl/blob/master/src/display.jl#L59
If you use remote Atom, try disabling the plotpane!

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I am trying to make it work with jupyter notebooks, I am not using Atom. I also tried resize! and it does not work. Maybe it has something to do with the display size (the monitor is 0mm x 0mm):

me@server:~$ xrandr -d :7 -q
xrandr:Failed to get size of gamma for output default
Screen 0: minimum 320 x 175, current 5280 x 1920, maximum 8192 x 4096
default connected 5280x1920+0+0 0mm x 0mm

... a list with all possible resolutions

I tried changing the resolution with xrandr but without success.

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