Please include the information as separate attachments:
* Output of sudo dmidecode
* sudo dmidecode > dmidecode.txt
* Try to suspend/hibernate and then restart the system and attach
/var/log/kern.log.0
* Tarball of /proc/acpi directory. You can't just tar all files because their
content sometimes changes etc.
* cp -r /proc/acpi /tmp
* tar -cvjf ~/acpi.tar.bz /tmp/acpi
* attach acpi.tar.bz from your home directory
Thanks
Fabio
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https://bugs.launchpad.net/bugs/669411
Title:
[Firmware Bug]: ACPI: ACPI brightness control misses _BQC function
Brightness key combinations disables entire system on Samsung R439
Laptop
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