Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately we can't fix it without more information.
Please include the information requested at https://wiki.ubuntu.com/DebuggingACPI as separate attachments.
I see from your dmesg:
[ 22.401684] ACPI: Battery Slot [BAT1] (battery absent)
Also, the intermittent boot freeze may be unrelated. I would advise opening a separate bug report for that problem, following the procedure in https://wiki.ubuntu.com/KernelTeamBugPolicies
Thanks in advance.
Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately we can't fix it without more information.
Please include the information requested at https:/ /wiki.ubuntu. com/DebuggingAC PI as separate attachments.
I see from your dmesg:
[ 22.401684] ACPI: Battery Slot [BAT1] (battery absent)
Also, the intermittent boot freeze may be unrelated. I would advise opening a separate bug report for that problem, following the procedure in https:/ /wiki.ubuntu. com/KernelTeamB ugPolicies
Thanks in advance.