如果我调高 Ubuntu 17.10 的音量，它有时会一直调到最大。考虑到我只按了一次按钮，理论上音量应该只会增加一步。请注意，我只知道音量控制按钮存在问题，而不知道其他任何调节音量的方法，因为我从不使用它们。
我该如何修复它？
编辑
系统规格
$ lspci -v
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
Subsystem: CLEVO/KAPOK Computer Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller
Flags: bus master, fast devsel, latency 0
Capabilities: <access denied>
Kernel modules: ie31200_edac
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 16
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: f6000000-f70fffff
Prefetchable memory behind bridge: 00000000e0000000-00000000f1ffffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller])
Subsystem: CLEVO/KAPOK Computer 4th Gen Core Processor Integrated Graphics Controller
Flags: bus master, fast devsel, latency 0, IRQ 28
Memory at f7400000 (64-bit, non-prefetchable) [size=4M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
Subsystem: CLEVO/KAPOK Computer Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
Flags: bus master, fast devsel, latency 0, IRQ 29
Memory at f7a14000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) (prog-if 30 [XHCI])
Subsystem: CLEVO/KAPOK Computer 8 Series/C220 Series Chipset Family USB xHCI
Flags: bus master, medium devsel, latency 0, IRQ 24
Memory at f7a00000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
Subsystem: CLEVO/KAPOK Computer 8 Series/C220 Series Chipset Family MEI Controller
Flags: bus master, fast devsel, latency 0, IRQ 30
Memory at f7a1e000 (64-bit, non-prefetchable) [size=16]
Capabilities: <access denied>
Kernel driver in use: mei_me
Kernel modules: mei_me
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05) (prog-if 20 [EHCI])
Subsystem: CLEVO/KAPOK Computer 8 Series/C220 Series Chipset Family USB EHCI
Flags: bus master, medium devsel, latency 0, IRQ 16
Memory at f7a1c000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
Subsystem: CLEVO/KAPOK Computer 8 Series/C220 Series Chipset High Definition Audio Controller
Flags: bus master, fast devsel, latency 0, IRQ 31
Memory at f7a10000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 16
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 18
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Memory behind bridge: f7900000-f79fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 19
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: f7800000-f78fffff
Prefetchable memory behind bridge: 00000000f2100000-00000000f21fffff
Capabilities: <access denied>
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05) (prog-if 20 [EHCI])
Subsystem: CLEVO/KAPOK Computer 8 Series/C220 Series Chipset Family USB EHCI
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at f7a1b000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
Subsystem: CLEVO/KAPOK Computer HM86 Express LPC Controller
Flags: bus master, medium devsel, latency 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05) (prog-if 01 [AHCI 1.0])
Subsystem: CLEVO/KAPOK Computer 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode]
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 26
I/O ports at f0b0 [size=8]
I/O ports at f0a0 [size=4]
I/O ports at f090 [size=8]
I/O ports at f080 [size=4]
I/O ports at f060 [size=32]
Memory at f7a1a000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
Subsystem: CLEVO/KAPOK Computer 8 Series/C220 Series Chipset Family SMBus Controller
Flags: medium devsel, IRQ 255
Memory at f7a19000 (64-bit, non-prefetchable) [size=256]
I/O ports at f040 [size=32]
Kernel modules: i2c_i801
01:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 840M] (rev a2)
Subsystem: CLEVO/KAPOK Computer GM108M [GeForce 840M]
Flags: bus master, fast devsel, latency 0, IRQ 255
Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f0000000 (64-bit, prefetchable) [size=32M]
I/O ports at e000 [disabled] [size=128]
Expansion ROM at f7000000 [disabled] [size=512K]
Capabilities: <access denied>
Kernel modules: nvidiafb, nouveau
03:00.0 Network controller: Intel Corporation Wireless 7260 (rev c3)
Subsystem: Intel Corporation Wireless-N 7260
Flags: bus master, fast devsel, latency 0, IRQ 32
Memory at f7900000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411 PCI Express Card Reader (rev 01)
Subsystem: CLEVO/KAPOK Computer RTL8411 PCI Express Card Reader
Flags: bus master, fast devsel, latency 0, IRQ 25
Memory at f7800000 (32-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: rtsx_pci
Kernel modules: rtsx_pci
04:00.2 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0a)
Subsystem: CLEVO/KAPOK Computer RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
Flags: bus master, fast devsel, latency 0, IRQ 27
I/O ports at d000 [size=256]
Memory at f2104000 (64-bit, prefetchable) [size=4K]
Memory at f2100000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169
答案1
我做了一些研究，你的问题可能是音量按钮改变音量的幅度超过了预期，可能是 100% 而不是 5%。尝试按照此 gif 中所示更改设置：
该 gif 来自于此帖子：
它谈论的是改变按下音量按钮时执行的命令。
如果这不起作用，您可以采取粗略的方法，在工具栏中添加带有一些图标的命令启动器。我制作了这个 gif 来向您展示我的意思：
命令：
amixer -D pulse sset Master 5%+
amixer -D pulse sset Master 5%-
我在 gif 中运行 Ubuntu MATE，它与普通 Ubuntu 略有不同，但它们仍应以相同的方式工作，希望这会有所帮助！