selenium - Text is blacked out when taking a firefox screenshot running headless with xvfb -

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i have jenkins setup on amazon ec2 , running fine except tiny issue selenium. every time run whole suite of tests (~30 min), selenium gets stuck on test. i've take screenshot @ moment , seems there alert on screen, alert text blacked out.

xvfb on ec2, alert

i've run xvfb, started selenium, taken screen capture xwd , converted image imagemagick.

i've scoured internet , have no clue.

figured out. turns out it's font thing. i've run steps indicated below , can read text. it's still on dark green background, text readable.

on amazon ec2 ubuntu instance need to:

1) enable multiverse apt-get

  • open /etc/apt/sources.list editor
  • on ec2 seems multiverse isn't present copied these lines file , saved
    • deb http://us.archive.ubuntu.com/ubuntu/ lucid multiverse
    • deb-src http://us.archive.ubuntu.com/ubuntu/ lucid multiverse
    • deb http://us.archive.ubuntu.com/ubuntu/ lucid-updates multiverse
    • deb-src http://us.archive.ubuntu.com/ubuntu/ lucid-updates multiverse

2) sudo apt-get update

3) sudo apt-get -y install x-ttcidfont-conf cabextract ttf-mscorefonts-installer

  • this bring shell gui, use arrow down, tab, , enter navigate
  • accept eula

4) sudo dpkg-reconfigure x-ttcidfont-conf - choose freetype fonts


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