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I recently got a dell 15 5000 (7th gen i5, touchscreen) laptop and almost immediately switched to Ubuntu 16.04, and twice now ( 4 days later) I have shut the lid and left, and come back and opened it and found my laptop shut of instead of suspending, and when I try to boot it, it will start for about half a second (lights will turn on) but before the screen comes on, it will shut back off and fail to boot. after attempting multiple times, it will eventually start like normal and give no indication that it failed. wondering if this is just a fault of the hardware and I should send it back and rebuy (I love the laptop other than that) or whether its a issue with lunux? thanks so much and sorry if this isn't the best location for this question

ari del Tufo
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2 Answers2

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I have run into issues with suspend, especially with brand new laptops, and linux because graphics cards are not supported. If you still have windows installed, check that it works ok with suspend, etc to rule out hardware issues. In linux, if you install the appropriate graphics drivers that may enable suspend to work correctly. If you still experience issues after this and Patrick's suggestions, I would lean towards hardware then.

The caveat with what I say above is only valid if what you mention about 'instead of suspending, and when I try to boot it, it will start for about half a second (lights will turn on) but before the screen comes on, it will shut back off and fail to boot' is you coming back to the laptop and merely opening the lid and waiting for it to start up. If you mean it is completely off and you press the power button to bring it back up and it does that, then I would lean more towards hardware being the issue.

HTH! - Kyle

Kyle H
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This doesn't seem like a hardware issue, but seems rather like a software issue. As you have a very new Kaby Lake CPU I heavily advise the following:

  • Update your kernel to 4.8, or upgrade to 16.10. The 4.8 kernel has much better support for Kaby Lake CPUs.

If this doesn't work, try adding these kernel parameters:

  • acpi_sleep=nonvs
  • intel_pstate=disable
  • intel_idle.max_cstate=1

By pressing "e" at startup, and adding them after the line GRUB_CMDLINE_LINUX_DEFAULT=""

Example:

  • GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_sleep=nonvs"

Note: adding these at boot is temporary. Take half an hour or so to mix and match these parameters. If one combo works, do the following:

Edit /etc/default/grub:

sudo gedit /etc/default/grub

Add your kernel parameters as you did above. Then, run the command

sudo update-grub.

If absolutely none of these suggestions work, then please file a bug in Launchpad.

You may also want to test this behavior with a LiveCD.

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