https://bugzilla.kernel.org/show_bug.cgi?id=16599
Summary: ACPI brightness control misses _BQC function
Product: ACPI
Version: 2.5
Kernel Version: 2.6.35.2
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
This message is displayed 2 times in the dmesg output :
[ 1.039683] ACPI: Using IOAPIC for interrupt routing
[ 1.040313] [Firmware Bug]: ACPI: ACPI brightness control misses _BQC
function
...
[ 5.214540] dcdbas dcdbas: Dell Systems Management Base Driver (version
5.6.0-3.2)
[ 5.221713] [Firmware Bug]: ACPI: ACPI brightness control misses _BQC
function
I have dell Studio XPS 1645 and a Debian sid OS.
I can control the brightness level with the key shortcuts so I suspect it
concerns the brightness sensor which is not enabled.
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