我的联想昭阳K29笔记本deepin 2013/2014下亮度没有Win7下亮度亮,如何处理.
系统eepin linux 2013
CPU:Intel Pentium B960
内存:8G
操作系统：64位
显卡：显示核心 HD Graphics (Sandy Bridge)
guodengwei@GuoLinux:~$ uname -a
Linux GuoLinux 3.8.0-35-generic #50-Ubuntu SMP Tue Dec 3 01:24:59 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
guodengwei@GuoLinux:~$ lsb_release -a
No LSB modules are available.
Distributor ID:        LinuxDeepin
Description:        LinuxDeepin 2013
Release:        2013
Codename:        raring
guodengwei@GuoLinux:~$ lspci |grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
guodengwei@GuoLinux:~$ lspci -v -s 00:02.0
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
        Subsystem: Lenovo Device 5004
        Flags: bus master, fast devsel, latency 0, IRQ 44
        Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 4000
        Expansion ROM at [disabled]
        Capabilities:
        Kernel driver in use: i915
现在能通过终端执行
sudo su
echo 3000 > /sys/class/backlight/intel_backlight/brightness将亮度调亮但是用Fn+快捷键调节到最大亮度还是好暗