SORRY - sent back to Luming by mistake - meant to send to all. On Wed, 2007-01-17 at 12:20 +0800, Yu, Luming wrote: > But there is NO _BQC. Instead of _BQC, there do have a _BCQ in DSDT. > Is this a bug of BIOS? Acpi video drvier needs _BQC to get the > current brightness level, and to get the next level to set on receiving > notification of 0x86 (Increase Brightness) , 0x87 (decrease Brightness). I can ACK that my HP had a similar typo / feature with its intel based video: 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03) The _BQC is absent, but a strange _BCQ is there - which looks to give the correct functionality. The ONLY place I can find any reference to _BCQ is in a couple of Windows Vista design documents about making display brightness work with Vista. Thank you Microsoft, for that typo - presuming thats what it is! Peter Clifton - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
