我已经安装了Ubuntu 14.04在我的华硕 X550LC。这里我发现了一些问题：
- 蓝牙无法工作。
- 每次重启后亮度都会变为 100%。
- 亮度和网络控制快捷键不起作用。
- 网络 LED（连接到互联网时应为绿色）不工作。
为了解决亮度问题，我尝试了第一和第二种解决方案这问题，但这不起作用。
为了解决蓝牙问题，我尝试了软件中心的 Blueman，但没有作用。
输出lsusb
Bus 001 Device 003: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse
Bus 001 Device 002: ID 8087:8000 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 04f2:b40a Chicony Electronics Co., Ltd
Bus 002 Device 013: ID 0fce:7172 Sony Ericsson Mobile Communications AB
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
输出lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09)
00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 09)
00:04.0 Signal processing controller [1180]: Intel Corporation Device [8086:0a03] (rev 09)
00:14.0 USB controller [0c03]: Intel Corporation Lynx Point-LP USB xHCI HC [8086:9c31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation Lynx Point-LP HECI #0 [8086:9c3a] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation Lynx Point-LP HD Audio Controller [8086:9c20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 1 [8086:9c10] (rev e4)
00:1c.2 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 3 [8086:9c14] (rev e4)
00:1c.3 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 4 [8086:9c16] (rev e4)
00:1c.4 PCI bridge [0604]: Intel Corporation Lynx Point-LP PCI Express Root Port 5 [8086:9c18] (rev e4)
00:1d.0 USB controller [0c03]: Intel Corporation Lynx Point-LP USB EHCI #1 [8086:9c26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation Lynx Point-LP LPC Controller [8086:9c43] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] [8086:9c03] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation Lynx Point-LP SMBus Controller [8086:9c22] (rev 04)
00:1f.6 Signal processing controller [1180]: Intel Corporation Lynx Point-LP Thermal [8086:9c24] (rev 04)
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device [10ec:5287] (rev 01)
02:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 12)
03:00.0 Network controller [0280]: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe [1814:3290]
03:00.1 Bluetooth [0d11]: Ralink corp. RT3290 Bluetooth [1814:3298]
04:00.0 3D controller [0302]: NVIDIA Corporation GF117M [GeForce 610M/710M/820M / GT 620M/625M/630M/720M] [10de:1140] (rev a1)
答案1
对于亮度问题，请执行以下操作。
sudo gedit /etc/default/grub
找到包含“GRUB_CMDLINE_LINUX_DEFAULT”的行并将其更改为以下内容
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi="
保存并关闭 gedit，然后在终端中输入以下命令
sudo update-grub