All examples show a black screen on OSX

[rasa-silva]

Trying to run the examples simple shows a window with a black background.
There seem to be no errors...

OSX 11.6

[200sc]

I'm on 11.6 on a 2019 15 inch MBP and can't replicate this, running the examples off of the master branch. Is there anything else about your system that could be a factor? Is it an M1 Mac?

Additionally: could you include the output of go env? Could you name which examples are not working (or just one of them)?

[rasa-silva]

Intel MacBook
Go 1.17.2

[rasa-silva]

❯ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/Users/ricardo.silva/Library/Caches/go-build"
GOENV="/Users/ricardo.silva/Library/Application Support/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="/Users/ricardo.silva/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="darwin"
GOPATH="/Users/ricardo.silva/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/Cellar/go/1.17.2/libexec"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/Cellar/go/1.17.2/libexec/pkg/tool/darwin_amd64"
GOVCS=""
GOVERSION="go1.17.2"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="/Users/ricardo.silva/code/oak/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -arch x86_64 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/h7/rp8ld5_n2ld57w78vzqvcrx40000gp/T/go-build3544231302=/tmp/go-build -gno-record-gcc-switches -fno-common"

[200sc]

I replicated all of those settings and flappy-bird still runs for me.

Other, reaching ideas:

1. How many monitors are connected to your machine?
2. Is there an unusual USB device connected to your machine?
3. What does clang -v output?
4. Can you run the examples here: https://github.com/go-gl/example?

[rasa-silva]

1/2) I do have an external monitor through a dongle but I just disconnected it and ran only on the macbook display. Same problem.
3)

❯ clang -v
Homebrew clang version 11.1.0
Target: x86_64-apple-darwin20.6.0
Thread model: posix
InstalledDir: /usr/local/opt/llvm@11/bin

4. yes. both of them run fine.

[200sc]

Thank you for all the details.

I downgraded from clang 13 to 11.1 via brew, and while the behavior of the examples is a little different (there's some initial rendering artifacts), it doesn't display just a black screen and the examples play as normal. You could try using a newer clang but based on that it shouldn't be a factor.

I've also tried manipulating GOMAXPROCS to no effect.

So status: still unable to reproduce; next I'll try looking for historical issues in any dependencies.