By far, the most common issue I receive every week is about receiving
NoAvailablePixelFormat, it is after all a fairly opaque error.
So what does this error mean? Well, to quote @tomaka:
Glutin queries the system for the configuration you request (multisampling, sRGB, depth buffer size, etc.) and if the system doesn't support this configuration, then
NoAvailablePixelFormatis returned.
On Linux, like on other platforms, debugging this issue is relatively straightforward. First, we need to know what configs are supported by your hardware, and what that hardware is. This is trivial, just type the following into your terminal:
$ lspci; glxinfo; glinfo; eglinfo
Next, track down what attributes glutin is passing to
eglChooseConfig/glXChooseFBConfig, and compare that to the attributes of the
configs available.
Similar to linux, you are going to want to figure out what attributes glutin is
requesting from ChoosePixelFormatARB/ChoosePixelFormat/eglChooseConfig,
however figuring out what to compare them to is less trivial.
The simplest solution I know of is to download the OpenGL Extension Viewer by realtech. You can then go to the "Display modes & pixel formats" tab and take a look at all the configs supported by WGL, I believe? I'm not what the equivalent for EGL is, unfortunately.
It should be noted that if you are on Windows and have an AMD gpu, make sure you are not requesting both a non-sRGB and non-floating point surface, else you shall be shit out of luck. See: rust-windowing#1219