Same happening on my Thinkpad T60.
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https://bugs.launchpad.net/bugs/1063965
Title:
Choppy sound in 12.10
Status in “alsa-driver” package in Ubuntu:
Confirmed
Bug description:
Distro:- Ubuntu 12.10 Quantal,
What I suspect is that sound is muted and turned on at a fast pace and that
gives it the choppy sound. I discovered that If I choose Sound Card ;- Mixer -
HDA Intel - the surround sliders show mute/on at a fast rate, with
- do - Mixer - Play back: Build in Audio Analog
Stereo - the master sliders jumps up and down rapidly a short distance.
I find the same happening on U tube. Movie Player with videos not so badly
affected.
Following is reports that I thought could help to pin point problem.
If more info needed, I would gladly provide such. Still new at this so please
bear with me.
Thanks in advance for help that I know would be forthcoming.
~$ lspci -v | grep -A7 -i "audio"
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition
Audio Controller (rev 01)
Subsystem: Foxconn International, Inc. Device 0dc2
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at f9ffc000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel
sudo aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC662 rev1 Digital [ALC662 rev1 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
lspci
00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev
03)
00:01.0 PCI bridge: Intel Corporation 4 Series Chipset PCI Express Root Port
(rev 03)
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition
Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1
(rev 01)
00:1c.1 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2
(rev 01)
00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI
Controller #1 (rev 01)
00:1d.1 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI
Controller #2 (rev 01)
00:1d.2 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI
Controller #3 (rev 01)
00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI
Controller #4 (rev 01)
00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI
Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface
Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller
(rev 01)
00:1f.2 IDE interface: Intel Corporation NM10/ICH7 Family SATA Controller
[IDE mode] (rev 01)
00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller (rev 01)
01:00.0 VGA compatible controller: NVIDIA Corporation G86 [GeForce 8500 GT]
(rev a1)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B
PCI Express Gigabit Ethernet controller (rev 03)
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