19:30 <rah> I have a program (Mixxx) which is reliably messing up the parts of its UI which use GL on a GC7000 (imx8mq); the GL parts are just not rendered and when things move, the GL parts end up showing whatever previously occupied the area of the window they now inhabit

19:31 <rah> how can I debug this?

19:34 <cphealy> What is your platform config? (Kernel version and Mesa version)

19:43 <rah> [drm] Initialized etnaviv 1.3.0 20151214 for etnaviv on minor

19:43 <rah> Linux version 6.1.0-reform2-arm64

19:45 <rah> OpenGL renderer string: Vivante GC7000 rev 6214

19:45 <rah> OpenGL version string: 2.1 Mesa 22.3.6

19:57 <cphealy> Probably a good thing to do is get an apitrace of the app and share in a Mesa "issue".

19:58 <cphealy> Or are you saying it's an issue at desktop level as opposed to app level?

19:58 <cphealy> Either way, screenshots would be helpful to have too (in Mesa "issue")

20:01 <rah> cphealy: what is an apitrace and how can I get one?

20:02 <cphealy> https://github.com/apitrace/apitrace/blob/master/docs/USAGE.markdown

20:19 <rah> doesn't seem to be tracing much

20:19 <rah> rah@acanthus:~$ apitrace dump mixxx.trace

20:19 <rah> rah@acanthus:~$

20:19 <rah> // process.name = "/usr/bin/mixxx"

20:19 <rah> (last line should be in the middle)

20:29 <mntirc> in my experience, one has to select the correct api, i.e. egl

20:30 <rah> egl doesn't work

20:30 <rah> also, the program is linked to libGL.so rather than libEGL.so

20:31 <rah> error: unavailable function eglGetProcAddress

20:41 <rah> runnng apitrace dump -v, all I get is precisely 14 copies of:

20:41 <rah> 0 glGetString(name = GL_VERSION) = "2.1 Mesa 22.3.6"

20:41 <rah> 1 glGetString(name = GL_VERSION) = "2.1 Mesa 22.3.6"