https://bugzilla.kernel.org/show_bug.cgi?id=35622
--- Comment #27 from rez...@archlinux.us 2011-08-18 10:31:51 --- (In reply to comment #25) > (In reply to comment #24) > > Just in case, I don't know if it's relevant. I can use the backlight keys > > if I > > boot the kernel using acpi_osi="Linux", although acer_wmi still doesn't > > work. > > And changing the backlight values by software (echo value > > > /sys/class/backlight/acpi_video0/brightness) doesn't work too unless I use > > one > > of the brightness keys after changing it. > > > > (same laptop, acer bios 1.12, kernel 3.0.2) > > Does your machine is also Acer Aspire 5750G ? Could you please also attached > your DSDT on bugzilla or open a new bug if your machine is not 5750G? > Yes, it's the same laptop. Mine has more RAM though. > This issue is because there BIOS have bug in _BCM, you cann't modify > brightness > level by standard acpi method. > > The acpi_osi="Linux" works on your machine is because OEM direct access the > BCLP register for video but not through ACPI method. Ok, it's good to know. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2 _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
