Comment 14 for bug 743451

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Fabio Marconi (fabiomarconi) wrote : Re: Display wont turn on after suspend or hibernate

Hello
Yes, with spaces.
looking at your kern.log we can see a lot of these errors:
Mar 27 17:05:02 mikepanc-laptop kernel: [ 8778.437985] res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x1 (device error)
Mar 27 17:05:02 mikepanc-laptop kernel: [ 8778.437992] ata5.00: status: { DRDY ERR }
Mar 27 21:10:52 mikepanc-laptop kernel: [23527.942178] res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x1 (device error)
Mar 27 21:10:52 mikepanc-laptop kernel: [23527.942182] ata5.00: status: { DRDY ERR }

and loking here (device error) it appear that your HD is having some problem, i suggest a backup of all important data.
https://ata.wiki.kernel.org/index.php/Libata_error_messages#Error_classes