On Mon, 2008-07-14 at 21:37 +0200, Paolo Ornati wrote: > Hello, > > on this laptop, Samsung NP-P500Y, some function keys are > BIOS-controlled (they work before Linux boots). > > As soon as Linux boots they stop working. Trying some boot options I've > found that "acpi=off" makes them work and the less drastic "acpi=ht" > works too. > > I'm mostly interested in brightness adjusting... and since both > xbacklight and radeontool fail I've to use "acpi=ht". Please file a bug report at http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI and attach the dmesg, acpidump output. Please run "grep . /sys/firmware/acpi/interrupts/*" both before and after pressing the brightness hotkey and attach the test result as well. thanks, rui > > Disabling ACPI is not a good idea on a laptop... so other boot > options/patches to try are welcomed :) > > > tested kernels: 2.6.22 / 2.6.24 (Ubuntu) > 2.6.18 - 2.6.26-rc9 (vanilla) > > > lspci: > 00:00.0 Host bridge: ATI Technologies Inc Unknown device 7930 > 00:01.0 PCI bridge: ATI Technologies Inc Unknown device 7932 > 00:05.0 PCI bridge: ATI Technologies Inc Unknown device 7935 > 00:06.0 PCI bridge: ATI Technologies Inc Unknown device 7936 > 00:07.0 PCI bridge: ATI Technologies Inc Unknown device 7937 > 00:12.0 SATA controller: ATI Technologies Inc SB600 Non-Raid-5 SATA > 00:13.0 USB Controller: ATI Technologies Inc SB600 USB (OHCI0) > 00:13.1 USB Controller: ATI Technologies Inc SB600 USB (OHCI1) > 00:13.2 USB Controller: ATI Technologies Inc SB600 USB (OHCI2) > 00:13.3 USB Controller: ATI Technologies Inc SB600 USB (OHCI3) > 00:13.4 USB Controller: ATI Technologies Inc SB600 USB (OHCI4) > 00:13.5 USB Controller: ATI Technologies Inc SB600 USB Controller (EHCI) > 00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 14) > 00:14.1 IDE interface: ATI Technologies Inc SB600 IDE > 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia > 00:14.3 ISA bridge: ATI Technologies Inc SB600 PCI to LPC Bridge > 00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge > 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon Xpress 1250 > 02:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01) > 05:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8039 PCI-E Fast Ethernet Controller (rev 15) > > > dmidecode and dmesg attached -- 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
