Hi Melchior, æ äï2011-05-02 æ 14:08 +0200ïTakashi Iwai æåï > At Sat, 30 Apr 2011 13:34:51 +0200, > Melchior FRANZ wrote: > > > > Dropping Linus from the CC. > > > > > > * Takashi Iwai -- Saturday 30 April 2011: > > * * At Sat, 30 Apr 2011 10:32:04 +0200, Melchior FRANZ wrote: > > > > Yes, backlight adjustment generally works on this notebook, but only > > > > with "acpi_osi=Linux" on the command line. > > > > > > acpi_osi quirk should be better added statically, then. > > > > No, I guess the problem here is that acer_wmi doesn't support this > > machine yet. I told the ACER WMI maintainer and sent a DSDT image, > > but this message was thoroughly ignored. > > > > > > $ dmesg|grep -i acer > > [ 0.000000] DMI: Acer TM5735/BA51_MV, BIOS V1.04 09/23/2010 > > [ 71.850534] acer_wmi: Acer Laptop ACPI-WMI Extras > > [ 72.350278] acer_wmi: Unable to detect available WMID devices > > > > Machine: Acer Travelmate 5735Z-452G32Mnss > > Hm, but the backlight control is done via the standard ACPI, no? > If so, the fact that acer_wmi doesn't work sounds irrelevant. > > BTW, did you try my previous patch? > > > Takashi Yes, please try Takashi's previous patch. I am tracing bko#34142, but this issue does not related to your backlight control, because there have _BCM, _BQC declare in your DSDT, your machine MUST SUPPORTED by standard acpi backlight interface. Even the acer-wmi can probed on your machine, it cann't help anything for your backlight control. Thank's a lot! Joey Lee _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel