I'm having a problem with the B2G emulator where it just shows a white screen after I run it with "./run-emulator.sh". Running reftests via "./mach reftest-remote" works fine. Attached is the logcat from the emulator. One thing that's suspicious is that "adb shell b2g-ps" shows: APPLICATION SEC USER PID PPID VSIZE RSS WCHAN PC NAME b2g 0 root 44 1 124100 58064 ffffffff 400713c0 S /system/b2g/b2g Mochitest 2 app_143 143 44 79720 31192 ffffffff 400713c0 S /system/b2g/plugin-container even though I never asked it to run mochitests. Any suggestions for how to diagnose the problem further are appreciated.

I had the black screen for a while, while trying to run the B2G emulator. I used an Ubuntu12 VM image, when I started using an Ubuntu 14 image, I didn't have that problem anymore. Some time ago, I posted this problem also on dev-b2g, I got 1 response from Armen Zambrano: " I think I had this same issue a while ago. I'm not sure that this is what it fixed it but what I did is to switch from the open source drivers to the Nvidia proprietary drivers. To get there (on Ubuntu 13.10): * System Settings * Software & Updates * Additional drivers I hope it was this what I did to make it work and it helps you. " I also made a mention in that thread, that closing the emulator window, while running mochitest-remote, seems to cause problems rerunning mochitest-remote. Doing a ./build.sh seemed to fix the problem. Anyhow, maybe one of these things might help you.

Firefox OS is not being worked on