Messages in this thread | | | Subject | Re: 2.6.30-rc1 (latest git): ACPI video backlight support broken. (WAS:thinkpad-acpi: cannot control brightness with hotkeys ) | From | Maxim Levitsky <> | Date | Mon, 13 Apr 2009 01:38:51 +0300 |
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I have an acer aspire 5720, and have same issue. I don't use acer-wmi. I use standard acpi video module, and now it doesn't work nothing in /sys/class/backlight, and this in dmesg:
[ 211.907597] ACPI: Failed to switch the brightness (using hardware keys)
This is when I try to change brightness, and this on module load
> [ 1910.228636] ACPI Error (video-0537): Current brightness invalid [20090320] > [ 1910.229006] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/device:34/device:35/input/input9 > [ 1910.390188] ACPI: Video Device [VGA] (multi-head: yes rom: no post: no) > >
Best regards, Maxim Levitsky
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