Low volume & distorted sound on HPdv8235ea laptop

[Claus Toft]

On my HP dv8235ea laptop with dapper flight 7 (updated) sound volume is low and with master and pcm on 100 % the sound also gets distorted. Volume is ok when booted into windows XP.

Output from lspci -v

0000:00:00.0 Host bridge: Intel Corporation Mobile Memory Controller Hub (rev 03)
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, fast devsel, latency 0
 Capabilities: <available only to root>

0000:00:01.0 PCI bridge: Intel Corporation Mobile PCI Express Graphics 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
 Memory behind bridge: d0000000-d1ffffff
 Prefetchable memory behind bridge: 00000000c0000000-00000000cff00000
 Capabilities: <available only to root>

0000:00:1b.0 0403: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, fast devsel, latency 0, IRQ 66
 Memory at d2400000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <available only to root>

0000:00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 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
 Capabilities: <available only to root>

0000:00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 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
 Capabilities: <available only to root>

0000:00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 01) (prog-if 00 [Normal decode])
 Flags: bus master, fast devsel, latency 0
 Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
 Memory behind bridge: 52000000-520fffff
 Capabilities: <available only to root>

0000:00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 01) (prog-if 00 [UHCI])
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 0, IRQ 58
 I/O ports at 1800 [size=32]

0000:00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 01) (prog-if 00 [UHCI])
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 0, IRQ 233
 I/O ports at 1820 [size=32]

0000:00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 01) (prog-if 00 [UHCI])
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 0, IRQ 185
 I/O ports at 1840 [size=32]

0000:00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 01) (prog-if 00 [UHCI])
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 0, IRQ 169
 I/O ports at 1860 [size=32]

0000:00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01) (prog-if 20 [EHCI])
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 0, IRQ 58
 Memory at d2404000 (32-bit, non-prefetchable) [size=1K]
 Capabilities: <available only to root>

0000:00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1) (prog-if 01 [Subtractive decode])
 Flags: bus master, fast devsel, latency 0
 Bus: primary=00, secondary=08, subordinate=0c, sec-latency=32
 I/O behind bridge: 00002000-00002fff
 Memory behind bridge: d2000000-d20fffff
 Prefetchable memory behind bridge: 0000000050000000-0000000051f00000
 Capabilities: <available only to root>

0000:00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 0
 Capabilities: <available only to root>

0000:00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01) (prog-if 8a [Master SecP PriP])
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 0, IRQ 233
 I/O ports at <unassigned>
 I/O ports at <unassigned>
 I/O ports at <unassigned>
 I/O ports at <unassigned>
 I/O ports at 1880 [size=16]

0000:00:1f.2 0106: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial ATA Storage Controllers cc=AHCI (rev 01) (prog-if 01)
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 50
 I/O ports at 18c8 [size=8]
 I/O ports at 18ac [size=4]
 I/O ports at 18c0 [size=8]
 I/O ports at 18a8 [size=4]
 I/O ports at 18b0 [size=16]
 Memory at d2404400 (32-bit, non-prefetchable) [size=1K]
 Capabilities: <available only to root>

0000:00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: medium devsel, IRQ 10
 I/O ports at 18e0 [size=32]

0000:01:00.0 VGA compatible controller: nVidia Corporation: Unknown device 01d8 (rev a1) (prog-if 00 [VGA])
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, fast devsel, latency 0, IRQ 169
 Memory at d1000000 (32-bit, non-prefetchable) [size=16M]
 Memory at c0000000 (64-bit, prefetchable) [size=256M]
 Memory at d0000000 (64-bit, non-prefetchable) [size=16M]
 Capabilities: <available only to root>

0000:06:00.0 Network controller: Intel Corporation: Unknown device 4222 (rev 02)
 Subsystem: Hewlett-Packard Company: Unknown device 135c
 Flags: bus master, fast devsel, latency 0, IRQ 185
 Memory at 52000000 (32-bit, non-prefetchable) [size=4K]
 Capabilities: <available only to root>

0000:08:06.0 CardBus bridge: Texas Instruments: Unknown device 8039
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 168, IRQ 185
 Memory at d2004000 (32-bit, non-prefetchable) [size=4K]
 Bus: primary=08, secondary=09, subordinate=0c, sec-latency=176
 Memory window 0: 50000000-51fff000 (prefetchable)
 Memory window 1: 54000000-55fff000
 I/O window 0: 00002400-000024ff
 I/O window 1: 00002800-000028ff
 16-bit legacy interface ports at 0001

0000:08:06.1 FireWire (IEEE 1394): Texas Instruments: Unknown device 803a (prog-if 10 [OHCI])
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 64, IRQ 233
 Memory at d2007000 (32-bit, non-prefetchable) [size=2K]
 Memory at d2000000 (32-bit, non-prefetchable) [size=16K]
 Capabilities: <available only to root>

0000:08:06.2 Mass storage controller: Texas Instruments: Unknown device 803b
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: medium devsel, IRQ 3
 Memory at d2005000 (32-bit, non-prefetchable) [disabled] [size=4K]
 Capabilities: <available only to root>

0000:08:06.3 0805: Texas Instruments: Unknown device 803c
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 64, IRQ 74
 Memory at d2007800 (32-bit, non-prefetchable) [size=256]
 Capabilities: <available only to root>

0000:08:08.0 Ethernet controller: Intel Corporation: Unknown device 1092 (rev 01)
 Subsystem: Hewlett-Packard Company: Unknown device 30a5
 Flags: bus master, medium devsel, latency 64, IRQ 74
 Memory at d2006000 (32-bit, non-prefetchable) [size=4K]
 I/O ports at 2000 [size=64]
 Capabilities: <available only to root>

[Fabio Parri (parrif-ibb)]

I've got a similiar program on my Acer notebook.

[Sebastien Wains (sebastienw-deactivatedaccount)]

Issue probably related to
https://launchpad.net/distros/ubuntu/+source/alsa-utils/+bug/64356

[Claus Toft (claus-toft)]

Problem also exists in Edgy Eft.

[Daniel T Chen (crimsun)]

Unrelated to bug 64356 (different dsp & codec).

Please attach ``lspci -vn && amixer''.

[Sebastien Wains (sebastienw-deactivatedaccount)]

Here you go..

Low and distorted sound on Toshiba Satellite L100-181

Works fine under Windows XP

[Daniel T Chen (crimsun)]

Does unmuting 'Master' resolve this issue?g

[Sebastien Wains (sebastienw-deactivatedaccount)]

Daniel,

Indeed, I had sound muted when I issued lspci and amixer but that's not the issue..

At 100 % unmuted, the volume is really low and distorted. You can barely hear something on the headphones either.

As I'm stating under bug 64356 a friend has a pretty similar laptop but doesn't have the issue. alsamixer reports a realtek chipset on his machine and a "generic" chipset on mine. That's the only difference we could fine between our two machines.

Fyi, I had the same problem under Fedora Core.

[Claus Toft (claus-toft)]

Output from lspci -vn & amixer on a HP dv8235ea

[Daniel T Chen (crimsun)]

Please also attach ``head -5 /proc/asound/card0/codec*''.

[Sebastien Wains (sebastienw-deactivatedaccount)]

Daniel

Here you go

root@portable:~# head -5 /proc/asound/card0/codec*
Codec: Generic 14f1 ID 5047
Address: 0
Vendor Id: 0x14f15047
Subsystem Id: 0x1179ff31
Revision Id: 0x100000

Regards,
Sebastien

[Daniel T Chen (crimsun)]

Both of these issues are addressed in the latest alsa-driver and in the patches that I submitted to kernel-team@ this month.

[Sebastien Wains (sebastienw-deactivatedaccount)]

I decided to try the latest alsa-drivers available on the official homepage (1.0.13) released in september and it fixed my issue.

My chipset is now recognized as a Conexant chip

root@portable:/# head -5 /proc/asound/card0/codec*
Codec: Conexant ID 5047
Address: 0
Vendor Id: 0x14f15047
Subsystem Id: 0x1179ff31
Revision Id: 0x100000

[Sebastien Wains (sebastienw-deactivatedaccount)]

Nevermind, it didn't fix at all..

My situation is hopeless as of today..

[Sebastien Wains (sebastienw-deactivatedaccount)]

I'm so confused and so glad at the same time, I'm sorry for the useless posts but...

The ALSA project released updated drivers today (still RC though) !

http://www.alsa-project.org/changes/v1-0-13--v1-0-14rc1.txt

I upgraded to 1.0.14rc1 manually and it finally fixes my issue for good

Thanks guys !

[Claus Toft (claus-toft)]

Hi

I can confirm that 1.0.14rc1 solves the problem !

Regards,
Claus

[Alejandro (a-valcarcel)]

Ok... im trying Linux for first time. I have a laptop Pavillion dv8000 on Ubuntu Edgy, and as I have readed your posts, seems like I have the same problem. The sound too low. Well, following your histories I downloaded the last ALSA drivers (1.0.14rc1).
Now I have the folder named "alsa-driver-1.0.14rc1" on my desktop but I have no idea what's the next step and how to do it. May some one help me?

And sorry for my ban english.

[Sebastien Wains (sebastienw-deactivatedaccount)]

Hi,

This should help you out :

http://www.wains.be/?p=165