我想知道是否有办法调整通过键盘调整液晶显示屏亮度的步骤。
看起来它们只是总数的 +/-30%，这很烦人，因为有时对其进行更多控制会很有用。现在举个例子：0 太低，但 30% 太高。我可以通过将其设置为 100% 然后再以 30 为单位降低 30 直到 10 来达到 10%，但这仍然太低了。
我希望对其进行更精细的控制，例如声音的 18 个步骤。
我在 Acer Extensa 5620 上，这是我的 lshw：
$ sudo lshw -short -sanitize
H/W path Device Class Description
==========================================================
system Notebook
/0 bus Columbia
/0/0 memory 105KiB BIOS
/0/4 processor Intel(R) Core(TM)2 Duo CPU T5550 @ 1.83GHz
/0/4/5 memory 64KiB L1 cache
/0/4/6 memory 2MiB L2 cache
/0/4/1.1 processor Logical CPU
/0/4/1.2 processor Logical CPU
/0/10 memory 3GiB System Memory
/0/10/0 memory 1GiB SODIMM DDR2 Synchronous 667 MHz (1,5 ns)
/0/10/1 memory 2GiB SODIMM DDR2 Synchronous 667 MHz (1,5 ns)
/0/1 processor
/0/1/1.1 processor Logical CPU
/0/1/1.2 processor Logical CPU
/0/100 bridge Mobile PM965/GM965/GL960 Memory Controller Hub
/0/100/2 display Mobile GM965/GL960 Integrated Graphics Controller (primary)
/0/100/2.1 display Mobile GM965/GL960 Integrated Graphics Controller (secondary)
/0/100/1a bus 82801H (ICH8 Family) USB UHCI Controller #4
/0/100/1a.1 bus 82801H (ICH8 Family) USB UHCI Controller #5
/0/100/1a.7 bus 82801H (ICH8 Family) USB2 EHCI Controller #2
/0/100/1b multimedia 82801H (ICH8 Family) HD Audio Controller
/0/100/1c bridge 82801H (ICH8 Family) PCI Express Port 1
/0/100/1c/0 eth0 network NetLink BCM5787M Gigabit Ethernet PCI Express
/0/100/1c.1 bridge 82801H (ICH8 Family) PCI Express Port 2
/0/100/1c.1/0 wlan0 network PRO/Wireless 3945ABG [Golan] Network Connection
/0/100/1c.2 bridge 82801H (ICH8 Family) PCI Express Port 3
/0/100/1d bus 82801H (ICH8 Family) USB UHCI Controller #1
/0/100/1d.1 bus 82801H (ICH8 Family) USB UHCI Controller #2
/0/100/1d.2 bus 82801H (ICH8 Family) USB UHCI Controller #3
/0/100/1d.7 bus 82801H (ICH8 Family) USB2 EHCI Controller #1
/0/100/1e bridge 82801 Mobile PCI Bridge
/0/100/1e/6 bridge PCIxx12 Cardbus Controller
/0/100/1e/6.1 bus PCIxx12 OHCI Compliant IEEE 1394 Host Controller
/0/100/1e/6.2 storage 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD)
/0/100/1e/6.3 generic PCIxx12 SDA Standard Compliant SD Host Controller
/0/100/1f bridge 82801HEM (ICH8M) LPC Interface Controller
/0/100/1f.1 scsi0 storage 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller
/0/100/1f.1/0.0.0 /dev/cdrom disk DVDRAM GSA-T40N
/0/100/1f.2 scsi2 storage 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller
/0/100/1f.2/0.0.0 /dev/sda disk 250GB Hitachi HTS54252
/0/100/1f.2/0.0.0/1 /dev/sda1 volume 26GiB Windows NTFS volume
/0/100/1f.2/0.0.0/2 /dev/sda2 volume 17GiB Extended partition
/0/100/1f.2/0.0.0/2/5 /dev/sda5 volume 3200MiB Linux swap / Solaris partition
/0/100/1f.2/0.0.0/2/6 /dev/sda6 volume 14GiB Linux filesystem partition
/0/100/1f.2/0.0.0/3 /dev/sda3 volume 189GiB EXT3 volume
/0/100/1f.3 bus 82801H (ICH8 Family) SMBus Controller
/0/2 scsi12 storage
/0/2/0.0.0 /dev/sdb disk SCSI Disk
有什么建议吗？
提前谢谢了！
答案1
大概 ...
直接地
echo '100' > /sys/class/backlight/psb-bl/brightness
echo `'50' > /sys/class/backlight/psb-bl/brightness
你只需调整路径，/sys/class/backlight/your_device/brightness
x背光
或者你可以尝试安装 xbacklight
sudo apt-get install xbacklight
xbacklight -inc 10
xbacklight -dec 10
xbacklight -set 60