Ubuntu 12.04笔记本亮度不能调节

[依然M流年]

就目前而言，我能想到的方法只有“Fn+方向键上下”或者在如图中的电源选项中更改屏幕亮度。但是两种方法都是有调节进度的显示，但是屏幕没有实质性的亮暗变化。显卡驱动已经确定是装好了的，NVIDIA GEFORCE 310M的的显卡，换其他版本的驱动还是不行。以前在Ubuntu 11.10里面也是这样的情况，一直没有弄好，求各位大大们支个招儿。

[wjchen]

我跟你一样的状况，不过我ATI的显卡，装开源驱动就可以，装最新闭源驱动就不行。
可以echo 亮度值 > /sys/class/backlight/acpi_video0/brightness

[枫叶饭团]

不是双显卡吧？

[依然M流年]

不是双显卡吧？

不是双显卡啊，只有这么一个512Mb的独立显卡。

[shhlian]

N卡么？
我是在/etc/X11/xorg.conf里面的device那添加上了
Option "RegistryDwords" "EnableBrightnessControl=1"

[wlsool]

N卡么？
我是在/etc/X11/xorg.conf里面的device那添加上了
Option "RegistryDwords" "EnableBrightnessControl=1"

sony 笔记本用次方法成功！！

[michael.ye]

太悲催了，装了11.10之后亮度一直不能调节。但是我的其他开发环境都搭建好了。好不容易搭建了。最后发现这个亮度不可调影响非常大。看得眼睛非常不舒服。有没有同样遭遇的朋友呢？大家交流一下处理心的吧？

[michael.ye]

对了，我的本子是e435 A6的。现在我的问题是显卡驱动不知道该怎么找？我的思路暂时有两个：
1、更新显卡驱动；
这是我查看的显卡硬件信息
michael@michaelye-ThinkPad-Edge-E435:~$ lspci -v
00:00.0 Host bridge: Advanced Micro Devices [AMD] Device 1410
Subsystem: Lenovo Device 5100
Flags: bus master, 66MHz, medium devsel, latency 64

00:01.0 VGA compatible controller: ATI Technologies Inc Device 9990 (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 5101
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at d0000000 (32-bit, prefetchable)
I/O ports at 4000
Memory at e8400000 (32-bit, non-prefetchable)
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>

00:01.1 Audio device: ATI Technologies Inc Device 9902
Subsystem: Lenovo Device 5100
Flags: bus master, fast devsel, latency 0, IRQ 48
Memory at e8444000 (32-bit, non-prefetchable)
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel

00:02.0 PCI bridge: Advanced Micro Devices [AMD] Device 1412 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: e8300000-e83fffff
Prefetchable memory behind bridge: 00000000e0000000-00000000e7ffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:04.0 PCI bridge: Advanced Micro Devices [AMD] Device 1414 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00002000-00002fff
Prefetchable memory behind bridge: 00000000e8000000-00000000e80fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:05.0 PCI bridge: Advanced Micro Devices [AMD] Device 1415 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: 00001000-00001fff
Memory behind bridge: e8200000-e82fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:07.0 PCI bridge: Advanced Micro Devices [AMD] Device 1417 (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
Memory behind bridge: e8100000-e81fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp

00:10.0 USB Controller: Advanced Micro Devices [AMD] Hudson USB XHCI Controller (rev 03) (prog-if 30 [XHCI])
Subsystem: Lenovo Device 5100
Flags: bus master, fast devsel, latency 0, IRQ 18
Memory at e8448000 (64-bit, non-prefetchable)
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci-hcd

00:10.1 USB Controller: Advanced Micro Devices [AMD] Hudson USB XHCI Controller (rev 03) (prog-if 30 [XHCI])
Subsystem: Lenovo Device 5100
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at e844a000 (64-bit, non-prefetchable)
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci-hcd

00:11.0 SATA controller: Advanced Micro Devices [AMD] Hudson SATA Controller [AHCI mode] (rev 40) (prog-if 01 [AHCI 1.0])
Subsystem: Lenovo Device 5100
Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 41
I/O ports at 4118
I/O ports at 4124
I/O ports at 4110
I/O ports at 4120
I/O ports at 4100 [size=16]
Memory at e844e000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci

00:12.0 USB Controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11) (prog-if 10 [OHCI])
Subsystem: Lenovo Device 5100
Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18
Memory at e844d000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci_hcd

00:12.2 USB Controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11) (prog-if 20 [EHCI])
Subsystem: Lenovo Device 5100
Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 17
Memory at e844e900 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd

00:13.0 USB Controller: Advanced Micro Devices [AMD] Hudson USB OHCI Controller (rev 11) (prog-if 10 [OHCI])
Subsystem: Lenovo Device 5100
Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18
Memory at e844c000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci_hcd

00:13.2 USB Controller: Advanced Micro Devices [AMD] Hudson USB EHCI Controller (rev 11) (prog-if 20 [EHCI])
Subsystem: Lenovo Device 5100
Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 17
Memory at e844e800 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd

00:14.0 SMBus: Advanced Micro Devices [AMD] Hudson SMBus Controller (rev 14)
Subsystem: Lenovo Device 5100
Flags: 66MHz, medium devsel
Kernel modules: i2c-piix4

00:14.2 Audio device: Advanced Micro Devices [AMD] Hudson Azalia Controller (rev 01)
Subsystem: Lenovo Device 5100
Flags: bus master, slow devsel, latency 64, IRQ 16
Memory at e8440000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel

00:14.3 ISA bridge: Advanced Micro Devices [AMD] Hudson LPC Bridge (rev 11)
Subsystem: Lenovo Device 5100
Flags: bus master, 66MHz, medium devsel, latency 0

00:14.4 PCI bridge: Advanced Micro Devices [AMD] Hudson PCI Bridge (rev 40) (prog-if 01 [Subtractive decode])
Flags: bus master, 66MHz, medium devsel, latency 64
Bus: primary=00, secondary=05, subordinate=05, sec-latency=64

00:18.0 Host bridge: Advanced Micro Devices [AMD] Device 1400
Flags: fast devsel

00:18.1 Host bridge: Advanced Micro Devices [AMD] Device 1401
Flags: fast devsel

00:18.2 Host bridge: Advanced Micro Devices [AMD] Device 1402
Flags: fast devsel

00:18.3 Host bridge: Advanced Micro Devices [AMD] Device 1403
Flags: fast devsel
Capabilities: <access denied>
Kernel driver in use: k10temp
Kernel modules: k10temp

00:18.4 Host bridge: Advanced Micro Devices [AMD] Device 1404
Flags: fast devsel

00:18.5 Host bridge: Advanced Micro Devices [AMD] Device 1405
Flags: fast devsel

01:00.0 VGA compatible controller: ATI Technologies Inc NI Seymour [AMD Radeon HD 6470M] (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 5101
Flags: bus master, fast devsel, latency 0, IRQ 18
Memory at e0000000 (64-bit, prefetchable) [size=128M]
Memory at e8300000 (64-bit, non-prefetchable) [size=128K]
I/O ports at 3000 [size=256]
[virtual] Expansion ROM at e8320000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel modules: radeon

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 07)
Subsystem: Lenovo Device 5100
Flags: bus master, fast devsel, latency 0, IRQ 40
I/O ports at 2000 [size=256]
Memory at e8004000 (64-bit, prefetchable) [size=4K]
Memory at e8000000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169

03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device 8195
Flags: bus master, fast devsel, latency 0, IRQ 17
I/O ports at 1000 [size=256]
Memory at e8200000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: rtl8192ce
Kernel modules: rtl8192ce

04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5229 (rev 01)
Subsystem: Lenovo Device 5100
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at e8100000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>

2、更新电源驱动；