我刚刚订购了联想 U430p，安装了 ubuntu 14.04。除了音频之外，一切都运行良好。虽然音频可以工作并且被系统检测到，但与 Windows 8.1（预装）相比，声音非常低。
rahul@rahul-IdeaPad-U430p:~$ uname -a
Linux rahul-IdeaPad-U430p 3.13.0-30-generic #54-Ubuntu SMP Mon Jun 9 22:45:01 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
rahul@rahul-IdeaPad-U430p:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC283 Analog [ALC283 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
rahul@rahul-IdeaPad-U430p:~$
rahul@rahul-IdeaPad-U430p:~$ lspci -v
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
Subsystem: Lenovo Device 3978
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 3978
Flags: bus master, fast devsel, latency 0, IRQ 66
Memory at b2000000 (64-bit, non-prefetchable) [size=4M]
Memory at a0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 5000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
Subsystem: Lenovo Device 3978
Flags: bus master, fast devsel, latency 0, IRQ 64
Memory at b2610000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
00:14.0 USB controller: Intel Corporation Lynx Point-LP USB xHCI HC (rev 04) (prog-if 30 [XHCI])
Subsystem: Lenovo Device 3978
Flags: bus master, medium devsel, latency 0, IRQ 61
Memory at b2600000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation Lynx Point-LP HECI #0 (rev 04)
Subsystem: Lenovo Device 3978
Flags: bus master, fast devsel, latency 0, IRQ 67
Memory at b2618000 (64-bit, non-prefetchable) [size=32]
Capabilities: <access denied>
Kernel driver in use: mei_me
00:1b.0 Audio device: Intel Corporation Lynx Point-LP HD Audio Controller (rev 04)
Subsystem: Lenovo Device 3978
Flags: bus master, fast devsel, latency 0, IRQ 68
Memory at b2614000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 1 (rev e4) (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: 00004000-00004fff
Memory behind bridge: b2500000-b25fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.2 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 3 (rev e4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Memory behind bridge: b2400000-b24fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.3 PCI bridge: Intel Corporation Lynx Point-LP PCI Express Root Port 4 (rev e4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=08, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: b1000000-b1ffffff
Prefetchable memory behind bridge: 00000000b0000000-00000000b0ffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation Lynx Point-LP USB EHCI #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: Lenovo Device 3978
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at b261c000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation Lynx Point-LP LPC Controller (rev 04)
Subsystem: Lenovo Device 3978
Flags: bus master, medium devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich
00:1f.2 SATA controller: Intel Corporation Lynx Point-LP SATA Controller 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Lenovo Device 3978
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 62
I/O ports at 5088 [size=8]
I/O ports at 5094 [size=4]
I/O ports at 5080 [size=8]
I/O ports at 5090 [size=4]
I/O ports at 5060 [size=32]
Memory at b261b000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation Lynx Point-LP SMBus Controller (rev 04)
Subsystem: Lenovo Device 3978
Flags: medium devsel
Memory at b2619000 (64-bit, non-prefetchable) [size=256]
I/O ports at 5040 [size=32]
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. Device 0123
Flags: bus master, fast devsel, latency 0, IRQ 63
I/O ports at 4000 [size=256]
Memory at b2504000 (64-bit, non-prefetchable) [size=4K]
Memory at b2500000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)
Subsystem: Intel Corporation Wireless-N 7260
Flags: bus master, fast devsel, latency 0, IRQ 65
Memory at b2400000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
答案1
- 您的主要声音是第二个（第一个是 hdmi 声音），因此从软件中心（或
sudo apt-get install pavucontrol）安装“脉冲音频音量控制”，并从多媒体菜单启动它。 - 进入“输出设备”选项卡并设置最后一个设备的音量。
- 更改最后一个右侧选项卡中的配置文件可能会有所帮助。
- 您还可以
alsamixer在终端中设置音量，然后按 F6 选择第二张卡，按右/左箭头选择推子，按上/下箭头设置音量，按 m 键取消静音/静音。