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yhatt / marp

The site of classic Markdown presentation writer app
https://yhatt.github.io/marp/
MIT License
7.89k stars 397 forks source link

Black Screen on Running Program #74

Closed Recon419A closed 5 years ago

Recon419A commented 8 years ago

When I run the program (both from 0.0.8 and building from source), I get a black screen. Unfortunately, I'm having issues with screen shots right now as well, so I can't paste it, but the terminal does print like a thousand of these:

[electron] [7373:0812/112208:ERROR:gles2_cmd_decoder.cc(2167)] [.CommandBufferContext.RenderWorker-0x16244b262140]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command

yhatt commented 8 years ago

It seems to be caused by compatibility between GPU and Chromium. (e.g. Similar case of Ubuntu Chromium)

If you are ready to build Marp from source, could you try to add app.disableHardwareAcceleration() to coffee/main.coffee:49? As below:

app.on 'ready', ->
  app.disableHardwareAcceleration()

  global.marp.mainMenu = new MainMenu
    ...

We would have worth to support to disable GPU acceleration if this issue would improved in above.

Recon419A commented 8 years ago

Sorry to take so long getting back.

When I made that change, I got different behavior. npm start produced a popup with the following error:

A JavaScript error occurred in the main process

Uncaught Exception:
Error: app.disableHardwareAcceleration() can only be called before app is ready
    at Error (native)
    at EventEmitter.<anonymous> (/home/drew/apps/marp/js/main.js:1:1161)
    at emitOne (events.js:101:20)
    at EventEmitter.emit (events.js:188:7)

It looks like it doesn't want me to call it there.

will-hart commented 8 years ago

The stack trace tells you to move it before app.on 'ready'. Look for where app is defined and move the line there to see if that helps. Maybe try around line 13 of main.coffee?