lkml.org 
[lkml]   [2008]   [Jul]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: BIOS-controlled FN keys works only with "acpi={off | ht}" on Samsung P500
    From
    Date
    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



    \
     
     \ /
      Last update: 2008-07-15 02:55    [W:3.483 / U:0.148 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site