If I turn up the volume on Ubuntu 17.10, it sometimes continues to the maximum. Given that I only pressed the button once, it should theoretically increment the volume only by one step. Note that I am only aware of the problem happening with volume control buttons, and not any other method of adjusting the volume since I never use those.
How can I fix that?
EDIT
System specs
$ 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
I did some research and your problem might be that your volume buttons change the volume by more than they are supposed to, maybe by 100% instead of 5%. Try changing your settings as pictured in this gif:
The gif is from this post here:
How do I set a custom keyboard shortcut to control volume?
which talks about changing the command executed when you press the volume buttons.
If that doesn't work you can go the crude route and add a command launcher to your tool bar with some icons. I made this gif to show you what I mean:
commands:
I am running Ubuntu MATE in the gif which has some slight differences from normal Ubuntu but they should still work about the same way, hope this helped!