level 4
KKrentiange
楼主
机器是 lenovo k41 ， 独显已禁用，铁了心装debian，系统为debian8, kde 装了之后如下几个问题：
系统待机睡死：我自己通过pm-suspend来解决了这个问题。
背光无法调节：亮瞎眼啊。。。
先通过 /sys/class/backlight调节，发现目录下没有任何东西，后来在grub启动项添加了 acpi_backlight=vendor ,系统设置里面电源管理里倒是有了调节选项，但是调节后无效果。 /sys/class/backlight里面有了ideapad的文件夹。里面有 brightness ， maxbrightness ， actul_brightness， 其中 echo x> 可以更改 brightness文件和maxbrightness文件内容， actul更改之后无变化。
实在没招了，求各方大神帮助！
lsp
ci：
00:00.0 Host bridge: Intel Corporation Device 1904 (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Device 1916 (rev 07)
00:14.0 USB controller: Intel Corporation Device 9d2f (rev 21)
00:14.2 Signal processing controller: Intel Corporation Device 9d31 (rev 21)
00:15.0 Signal processing controller: Intel Corporation Device 9d60 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Device 9d61 (rev 21)
00:16.0 Communication controller: Intel Corporation Device 9d3a (rev 21)
00:17.0 SATA controller: Intel Corporation Device 9d03 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Device 9d14 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Device 9d15 (rev f1)
00:1e.0 Signal processing controller: Intel Corporation Device 9d27 (rev 21)
00:1e.4 SD Host controller: Intel Corporation Device 9d2b (rev 21)
00:1e.6 SD Host controller: Intel Corporation Device 9d2d (rev 21)
00:1f.0 ISA bridge: Intel Corporation Device 9d48 (rev 21)
00:1f.2 Memory controller: Intel Corporation Device 9d21 (rev 21)
00:1f.3 Audio device: Intel Corporation Device 9d70 (rev 21)
00:1f.4 SMBus: Intel Corporation Device 9d23 (rev 21)
02:00.0 Network controller: Intel Corporation Device 3166 (rev 99)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
-------------------------------------------------------------------------------------------------------------------------------
ideapad目录下内容：
actual_brightness brightness max_brightness subsystem uevent
bl_power device power type
------------------------------------------------------------------------------------------------------------------------------
2016年11月22日 05点11分
1
系统待机睡死：我自己通过pm-suspend来解决了这个问题。
背光无法调节：亮瞎眼啊。。。
先通过 /sys/class/backlight调节，发现目录下没有任何东西，后来在grub启动项添加了 acpi_backlight=vendor ,系统设置里面电源管理里倒是有了调节选项，但是调节后无效果。 /sys/class/backlight里面有了ideapad的文件夹。里面有 brightness ， maxbrightness ， actul_brightness， 其中 echo x> 可以更改 brightness文件和maxbrightness文件内容， actul更改之后无变化。
实在没招了，求各方大神帮助！
lsp
ci：
00:00.0 Host bridge: Intel Corporation Device 1904 (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Device 1916 (rev 07)
00:14.0 USB controller: Intel Corporation Device 9d2f (rev 21)
00:14.2 Signal processing controller: Intel Corporation Device 9d31 (rev 21)
00:15.0 Signal processing controller: Intel Corporation Device 9d60 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Device 9d61 (rev 21)
00:16.0 Communication controller: Intel Corporation Device 9d3a (rev 21)
00:17.0 SATA controller: Intel Corporation Device 9d03 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Device 9d14 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Device 9d15 (rev f1)
00:1e.0 Signal processing controller: Intel Corporation Device 9d27 (rev 21)
00:1e.4 SD Host controller: Intel Corporation Device 9d2b (rev 21)
00:1e.6 SD Host controller: Intel Corporation Device 9d2d (rev 21)
00:1f.0 ISA bridge: Intel Corporation Device 9d48 (rev 21)
00:1f.2 Memory controller: Intel Corporation Device 9d21 (rev 21)
00:1f.3 Audio device: Intel Corporation Device 9d70 (rev 21)
00:1f.4 SMBus: Intel Corporation Device 9d23 (rev 21)
02:00.0 Network controller: Intel Corporation Device 3166 (rev 99)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
-------------------------------------------------------------------------------------------------------------------------------
ideapad目录下内容：
actual_brightness brightness max_brightness subsystem uevent
bl_power device power type
------------------------------------------------------------------------------------------------------------------------------