Sten Bennetsen, thank you for your comments. As per your https://launchpadlibrarian.net/101909791/BootDmesg.txt :
[ 0.000000] ACPI: BIOS bug: multiple APIC/MADT found, using 0
...
[ 0.164693] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
Hence, as per http://us.acer.com/ac/en/US/content/drivers an update is available for your BIOS (3521). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
Sten Bennetsen, thank you for your comments. As per your https:/ /launchpadlibra rian.net/ 101909791/ BootDmesg. txt :
[ 0.000000] ACPI: BIOS bug: multiple APIC/MADT found, using 0
...
[ 0.164693] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
Hence, as per http:// us.acer. com/ac/ en/US/content/ drivers an update is available for your BIOS (3521). If you update to this following https:/ /help.ubuntu. com/community/ BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
For more on BIOS updates and linux, please see https:/ /help.ubuntu. com/community/ ReportingBugs# Bug_reporting_ etiquette .
Thank you for your understanding.