Provavelmente esta solução irá ajudá-lo: link
ou, talvez, este aqui link
Este último me ajudou (se eu não executar o Skype embora).
Eu instalei com sucesso o 12.04 no meu computador, que também tem o Windows 7. Tudo funciona bem diferente das músicas que tento tocar. Seja através do VLC, do Rhythmbox ou do Audacious player, eu ouço um som estridente sempre que toco músicas, ele para por alguns segundos, pula algumas partes e, no total, é uma experiência terrível para os ouvidos.
No terminal, escrevi sudo lspci -v como indicado na "ajuda" e abaixo está o resultado que obtive:
ananyabrata@ananyabrata-desktop:~$ sudo lspci -v
[sudo] password for ananyabrata:
00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03)
Subsystem: Intel Corporation Device 5756
Flags: bus master, fast devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel driver in use: agpgart-intel
00:01.0 PCI bridge: Intel Corporation 4 Series Chipset PCI Express Root Port (rev 03) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
Capabilities: [88] Subsystem: Intel Corporation Device 5756
Capabilities: [80] Power Management version 3
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [a0] Express Root Port (Slot+), MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [140] Root Complex Link
Kernel driver in use: pcieport
Kernel modules: shpchp
00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
Subsystem: Intel Corporation Device 5756
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at e0000000 (64-bit, non-prefetchable) [size=4M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f0f0 [size=8]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Kernel driver in use: i915
Kernel modules: i915
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01)
Subsystem: Intel Corporation Device 5756
Flags: bus master, fast devsel, latency 0, IRQ 45
Memory at e0500000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [130] Root Complex Link
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel
00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 01) (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: 00001000-00001fff
Memory behind bridge: 80200000-803fffff
Prefetchable memory behind bridge: 0000000080400000-00000000805fffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Intel Corporation Device 5756
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Root Complex Link
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 01) (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: 0000e000-0000efff
Memory behind bridge: e0400000-e04fffff
Prefetchable memory behind bridge: 0000000080000000-00000000801fffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Intel Corporation Device 5756
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Root Complex Link
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 01) (prog-if 00 [UHCI])
Subsystem: Intel Corporation Device 5756
Flags: bus master, medium devsel, latency 0, IRQ 23
I/O ports at f080 [size=32]
Kernel driver in use: uhci_hcd
00:1d.1 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 01) (prog-if 00 [UHCI])
Subsystem: Intel Corporation Device 5756
Flags: bus master, medium devsel, latency 0, IRQ 19
I/O ports at f060 [size=32]
Kernel driver in use: uhci_hcd
00:1d.2 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 01) (prog-if 00 [UHCI])
Subsystem: Intel Corporation Device 5756
Flags: bus master, medium devsel, latency 0, IRQ 18
I/O ports at f040 [size=32]
Kernel driver in use: uhci_hcd
00:1d.3 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01) (prog-if 00 [UHCI])
Subsystem: Intel Corporation Device 5756
Flags: bus master, medium devsel, latency 0, IRQ 16
I/O ports at f020 [size=32]
Kernel driver in use: uhci_hcd
00:1d.7 USB controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 01) (prog-if 20 [EHCI])
Subsystem: Intel Corporation Device 5756
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at e0504000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port: BAR=1 offset=00a0
Kernel driver in use: ehci_hcd
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1) (prog-if 01 [Subtractive decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=04, sec-latency=32
Capabilities: [50] Subsystem: Intel Corporation Device 5756
00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01)
Subsystem: Intel Corporation Device 5756
Flags: bus master, medium devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel modules: leds-ss4200, iTCO_wdt, intel-rng
00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA Controller [IDE mode] (rev 01) (prog-if 8f [Master SecP SecO PriP PriO])
Subsystem: Intel Corporation Device 5756
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 19
I/O ports at f0e0 [size=8]
I/O ports at f0d0 [size=4]
I/O ports at f0c0 [size=8]
I/O ports at f0b0 [size=4]
I/O ports at f0a0 [size=16]
Capabilities: [70] Power Management version 2
Kernel driver in use: ata_piix
00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 01)
Subsystem: Intel Corporation Device 5756
Flags: medium devsel, IRQ 10
I/O ports at 0400 [size=32]
Kernel modules: i2c-i801
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
Subsystem: Intel Corporation Device 5756
Physical Slot: 0-1
Flags: bus master, fast devsel, latency 0, IRQ 43
I/O ports at e000 [size=256]
Memory at e0424000 (64-bit, prefetchable) [size=4K]
Memory at e0420000 (64-bit, prefetchable) [size=16K]
Expansion ROM at e0400000 [disabled] [size=128K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [ac] MSI-X: Enable- Count=4 Masked-
Capabilities: [cc] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 90-00-00-00-68-4c-e0-00
Kernel driver in use: r8169
Kernel modules: r8169
Duas coisas peculiares que notei é que posso reproduzir as músicas no Windows corretamente e, quando abro o YouTube, posso assistir aos vídeos sem problemas de som.
Por favor, ajudem-me, porque estou no meu limite, não consigo ouvir as minhas músicas favoritas ou ver filmes e novelas.