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BRMBU
Asked: 2016-06-07 01:00:14 +0800 CST

Ubuntu 16.04 LTS black screen after suspension on Dell [duplicate]

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I have a Dell Inspiron 15R with Intel® Ivybridge Mobile Graphics. I upgraded to Ubuntu vanilla and the latest version (16.04) few days back. Each time I close the laptop lid with the power source plugged in, and reopen it, a blank screen appears. A forced restart using the hardware button is necessary at this point. If the lock screen is activated, after a time it goes black. Even when on plugged on or on battery, if unused or locked, the same happens and a manual reboot is required for it to start. The CPU is running but I cant get to the login screen

16.04

1 Answers

  1. Seems to match something I've seen already for 14.04:

    https://bugs.launchpad.net/ubuntu/+source/xubuntu-default-settings/+bug/1303736

    File a new bug, and for now try the workaround from here:

    map some key combination to: xrandr --auto and you'll get your screen back by pressing it.

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