The results of fwts and fwts method are both in results.log. The redirect to the files you wanted only state that the results are appended in results.log.
As for the grep: david@david-HPdv7:~$ sudo grep -r . /proc/acpi /proc/acpi/battery/BAT0/alarm:alarm: unsupported /proc/acpi/battery/BAT0/state:present: yes /proc/acpi/battery/BAT0/state:capacity state: ok /proc/acpi/battery/BAT0/state:charging state: discharging /proc/acpi/battery/BAT0/state:present rate: 12154 mW /proc/acpi/battery/BAT0/state:remaining capacity: 93918 mWh /proc/acpi/battery/BAT0/state:present voltage: 12564 mV /proc/acpi/battery/BAT0/info:present: yes /proc/acpi/battery/BAT0/info:design capacity: 98235 mWh /proc/acpi/battery/BAT0/info:last full capacity: 93917 mWh /proc/acpi/battery/BAT0/info:battery technology: rechargeable /proc/acpi/battery/BAT0/info:design voltage: 11100 mV /proc/acpi/battery/BAT0/info:design capacity warning: 3996 mWh /proc/acpi/battery/BAT0/info:design capacity low: 6582 mWh /proc/acpi/battery/BAT0/info:cycle count: 0 /proc/acpi/battery/BAT0/info:capacity granularity 1: 939 mWh /proc/acpi/battery/BAT0/info:capacity granularity 2: 939 mWh /proc/acpi/battery/BAT0/info:model number: 8850 /proc/acpi/battery/BAT0/info:serial number: Li4402A /proc/acpi/battery/BAT0/info:battery type: Li /proc/acpi/battery/BAT0/info:OEM info: Hewlett-Packard /proc/acpi/button/lid/LID/state:state: open /proc/acpi/ac_adapter/AC/state:state: off-line grep: /proc/acpi/event: Device or resource busy /proc/acpi/wakeup:Device S-state Status Sysfs node /proc/acpi/wakeup:P0P1 S3 *disabled /proc/acpi/wakeup:LID S3 *enabled /proc/acpi/wakeup:GLAN S4 *disabled /proc/acpi/wakeup:EHC1 S3 *enabled pci:0000:00:1d.0 /proc/acpi/wakeup:EHC2 S3 *enabled pci:0000:00:1a.0 /proc/acpi/wakeup:HDEF S0 *disabled pci:0000:00:1b.0 /proc/acpi/wakeup:RP01 S4 *disabled pci:0000:00:1c.0 /proc/acpi/wakeup:PXSX S4 *enabled pci:0000:01:00.0 /proc/acpi/wakeup:RP02 S3 *disabled pci:0000:00:1c.1 /proc/acpi/wakeup:PXSX S4 *disabled pci:0000:07:00.0 /proc/acpi/wakeup:RP03 S3 *disabled pci:0000:00:1c.2 /proc/acpi/wakeup:PXSX S4 *disabled pci:0000:0d:00.0 /proc/acpi/wakeup:RP04 S3 *disabled pci:0000:00:1c.3 /proc/acpi/wakeup:PXSX S4 *enabled pci:0000:13:00.0 /proc/acpi/wakeup:RP05 S3 *disabled /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:RP06 S3 *disabled /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:RP07 S3 *disabled /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:RP08 S3 *disabled /proc/acpi/wakeup:PXSX S4 *disabled /proc/acpi/wakeup:PEG0 S4 *disabled /proc/acpi/wakeup:PEGP S4 *disabled /proc/acpi/wakeup:PEG1 S4 *disabled /proc/acpi/wakeup:PEG2 S4 *disabled /proc/acpi/wakeup:PEG3 S4 *disabled /proc/acpi/wakeup:PWRB S4 *enabled ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1014915 Title: ACPI Error when changing screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1014915/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs