Rusty SHackleford, thank you for reporting this and helping make Ubuntu
better. As per http://www.dell.com/support/home/us/en/19/product-
support/product/vostro-3550/drivers an update to your computer's buggy
and outdated BIOS is available (A12). If you update to this following
https://help.ubuntu.
Defect with similar behaviour on different hardware submitted to Bug
#1437719
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Title:
Black screen on user switch.
To manage notifications about
** Attachment added: "regdump_broke.txt"
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** Attachment added: "Xorg.0.log"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1437557/+attachment/4358506/+files/Xorg.0.log
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Title:
B
** Attachment added: "i915_error_state"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1437557/+attachment/4358507/+files/i915_error_state
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