acer-wmi 问题(屏幕亮度不能调等问题)

tocai

我的笔记本是Acer Aspire 4736Z
屏幕亮度快捷键不可调，是acer-wmi的问题，谁遇到过
intel G41主板芯片
T4200 CPU
GMA 4500M显卡

dmesg |grep acer
[    7.275474] acer-wmi: Acer Laptop ACPI-WMI Extras
[    7.292649] acer-wmi: Unable to detect available WMID devices

uname -a
Linux cai-debian 2.6.32-2-amd64 #1 SMP Thu Feb 4 01:59:06 UTC 2010
x86_64 GNU/Linux

lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub [8086:2a40] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 09)
00:02.1 Display controller [0380]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a43] (rev 09)
00:1a.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [8086:2937] (rev 03)
00:1a.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 [8086:2938] (rev 03)
00:1a.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 [8086:293c] (rev 03)
00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 03)
00:1c.0 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 [8086:2940] (rev 03)
00:1c.1 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 [8086:2942] (rev 03)
00:1c.2 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 [8086:2944] (rev 03)
00:1c.4 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 [8086:2948] (rev 03)
00:1d.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 [8086:2934] (rev 03)
00:1d.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 [8086:2935] (rev 03)
00:1d.2 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 [8086:2936] (rev 03)
00:1d.3 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 [8086:2939] (rev 03)
00:1d.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 [8086:293a] (rev 03)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev 93)
00:1f.0 ISA bridge [0601]: Intel Corporation ICH9M LPC Interface Controller [8086:2919] (rev 03)
00:1f.2 SATA controller [0106]: Intel Corporation ICH9M/M-E SATA AHCI Controller [8086:2929] (rev 03)
00:1f.3 SMBus [0c05]: Intel Corporation 82801I (ICH9 Family) SMBus Controller [8086:2930] (rev 03)
00:1f.6 Signal processing controller [1180]: Intel Corporation 82801I (ICH9 Family) Thermal Subsystem [8086:2932] (rev 03)
04:00.0 Network controller [0280]: RaLink RT2860 [1814:0781]
05:00.0 Ethernet controller [0200]: Attansic Technology Corp. Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller [1969:1026] (rev b0)
07:00.0 System peripheral [0880]: JMicron Technology Corp. SD/MMC Host Controller [197b:2382]
07:00.2 SD Host controller [0805]: JMicron Technology Corp. Standard SD Host Controller [197b:2381]
07:00.3 System peripheral [0880]: JMicron Technology Corp. MS Host Controller [197b:2383]
07:00.4 System peripheral [0880]: JMicron Technology Corp. xD Host Controller [197b:2384]

沙漠之子

我遇过,卸载就行了

我是通过手动调整rc.conf 中的模块加载的 acer-wmi我没加载他
ps:我是archlinux用户

聚焦深空

貌似 acer 是以硬件方式实现背光调整。

证据：
偶这里有台 acer 本本，内核中未启用背光控制之类东东，acpid 只管电源键，Fn+Right Fn+Left 可直接调整背光。
用 showkey 查看： Fn+Right 返回 keycode 112，Fn+Left 返回无效 keycode。

tocai

Debian的内核里已经有acer-wmi,不加载acer-wmi可以解决问题吗，有何影响。
我的Acer 不是以硬件方式调整背光的。
Fn+Right Fn+Left是正常的，按下的时候有显示亮度调整，只是无效，在gnome-power-manager调整后重启可以生效。

Havanna

我这里也是硬件调节的
证据，在启动grub菜单的时候可以调整亮度，kernel启动后，快捷键无效.....

nonplus

同acer，一样已硬件控制，曾一度认为背光都是硬控