On Wed, Oct 24, 2012 at 5:05 PM, Sebastian Riemer <sebastian.riemer@xxxxxxxxxxxxxxxx> wrote: > Hi Corentin, > > On 24.10.2012 17:24, Corentin Chary wrote: >> samsung-laptop doesn't use ACPI, only SABI interface. > > I thought it does for the video driver/backlight control. The strange > thing is that the issues start directly after loading the driver. > Perhaps it has to be blacklisted for this model. samsung-laptop talks to the bios directly using SABI. But the BIOS is also related to ACPI, so things can get ugly I guess... > Kernel log: > > samsung_laptop: detected SABI interface: SwSmi@ > samsung_laptop: Backlight controlled by ACPI video driver > ACPI Warning: 0x000000000000efa0-0x000000000000efbf SystemIO conflicts > with Region \_SB_.PCI0.SBUS.SMBI 1 (20120711/utaddress-251) > ACPI: If an ACPI driver is available for this device, you should use it > instead of the native driver Hum can you try to blacklist samsung-laptop, load it manually, and send me the dmesg ? If possible with and without acpi_backlght=vendor boot parameter. > Where are the custom ACPI drivers in the kernel tree if not in > drivers/platform/x86 ? drivers/paltform/x86 contains x86 platform drivers, and some of them are ACPI drivers, but not all of them. >> This looks like ACPI issues, please file a bug on bugzilla, but first >> thing, check for bios updates :). > > Which bugzilla? Sorry, I'm not an ACPI specialist. The linux kernel bugzilla. But before doing that, are this issues only hapenning when/if samsung-laptop is loaded ? Can you send me he output of: tree /sys/devices/platform/samsung-laptop/ tree /sys/class/backlight Thanks -- Corentin Chary http://xf.iksaif.net -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
