Please read: Audio gotchas in Ubuntu 9.10

[ratcheer]

I've put together a list of common pitfalls when upgrading to Ubuntu 9.10. It's located at http://drowninginbugs.blogspot.com/2...io-in-910.html.

Thank you.

Tim

[crimsun]

Add crackling sound solution to first post. Many people have this problem.

That's not a solution; that's a workaround. The solution is to fix sound/pci/hda/patch_*.c.

[crimsun]

I have the "overdriven sound" problem after upgrading to 9.10 from 9.04. I'm using an inspiron 9400 laptop. The link above mentions this problem, but there doesn't seem to be a detailed "fix" for it.

Any suggestions for a newb? Thanks.

The bug report links to a blog post where I spell out precisely what to add (ignore_dB=1 to the module-udev-detect line) to which file (/etc/pulse/default.pa or ~/.pulse/default.pa). Alternately, you can edit the same file and pass control=foo to module-alsa-sink (where foo is the name of the amixer control element).

[SpotTheWonderDog]

After banging my head against the wall for two solid days trying to recover from upgrading to Koala from
Jaunty, I just about ready to throw in the towel.

I've got a desktop with built in audio on the MB. Ubuntu is on a separate hard disk. If I boot up in Windows,
audio works fine.

I can't boot up in 2.6.31-14 without the system crashing. I can boot up in 2.6.28-15.
I entered every command that someone mentioned in the forums and posted the results here.

Why can't I get audio?
Why can't I boot up in 2.6.31-14?
Is it possible to downgrade to Jaunty without having to wipe the disk and reload? I spent months configuring the system.



$ lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)

$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfebf8000 irq 22


$ fuser -v /dev/dsp* /dev/snd/*
(no output)

$ alsa force-reload
Unloading ALSA sound driver modules: snd-hda-intel snd-pcm-oss snd-mixer-oss snd-pcm snd-seq-dummy snd-seq-oss snd-seq-midi snd-rawmidi snd-seq-midi-event snd-seq snd-timer snd-seq-device snd-page-alloc.
Loading ALSA sound driver modules: snd-hda-intel snd-pcm-oss snd-mixer-oss snd-pcm snd-seq-dummy snd-seq-oss snd-seq-midi snd-rawmidi snd-seq-midi-event snd-seq snd-timer snd-seq-device snd-page-alloc.

$ aplay -l
aplay: device_list:223: no soundcards found...

During bootup, I noticed this: 'PulseAudio configured for per-user sessions' Is this good or bad or
neither?

$ alsamixer

alsamixer: function snd_ctl_open failed for default: No such file or directory

$ lspci -v | less

00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
Subsystem: ASUSTeK Computer Inc. Device 81ec
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at febf8000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0

Sound preferences->Output->Choose a device for sound output:
"Dummy output"

$ cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.18rc3.

$ ls /etc/asound*
ls: cannot access /etc/asound*: No such file or directory


$ strace -eopen alsamixer
open("/etc/ld.so.cache", O_RDONLY) = 3
open("/lib/libncurses.so.5", O_RDONLY) = 3
open("/usr/lib/libasound.so.2", O_RDONLY) = 3
open("/lib/tls/i686/cmov/libm.so.6", O_RDONLY) = 3
open("/lib/tls/i686/cmov/libdl.so.2", O_RDONLY) = 3
open("/lib/tls/i686/cmov/libpthread.so.0", O_RDONLY) = 3
open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = 3
open("/lib/tls/i686/cmov/librt.so.1", O_RDONLY) = 3
open("/dev/urandom", O_RDONLY) = 3
open("/usr/share/alsa/alsa.conf", O_RDONLY) = 3
open("/usr/share/alsa/pulse.conf", O_RDONLY) = 3
open("/usr/share/alsa/bluetooth.conf", O_RDONLY) = 3
open("/etc/ld.so.cache", O_RDONLY) = 3
open("/usr/lib/alsa-lib/libasound_module_conf_pulse.so", O_RDONLY) = 3
open("/usr/lib/libpulse.so.0", O_RDONLY) = 3
open("/usr/lib/libpulsecommon-0.9.19.so", O_RDONLY) = 3
open("/usr/lib/libX11.so.6", O_RDONLY) = 3
open("/usr/lib/libICE.so.6", O_RDONLY) = 3
open("/usr/lib/libSM.so.6", O_RDONLY) = 3
open("/usr/lib/libXtst.so.6", O_RDONLY) = 3
open("/lib/libwrap.so.0", O_RDONLY) = 3
open("/usr/lib/libsndfile.so.1", O_RDONLY) = 3
open("/lib/libdbus-1.so.3", O_RDONLY) = 3
open("/usr/lib/libxcb.so.1", O_RDONLY) = 3
open("/lib/libuuid.so.1", O_RDONLY) = 3
open("/usr/lib/libXext.so.6", O_RDONLY) = 3
open("/lib/tls/i686/cmov/libnsl.so.1", O_RDONLY) = 3
open("/usr/lib/libFLAC.so.8", O_RDONLY) = 3
open("/usr/lib/libvorbisenc.so.2", O_RDONLY) = 3
open("/usr/lib/libvorbis.so.0", O_RDONLY) = 3
open("/usr/lib/libogg.so.0", O_RDONLY) = 3
open("/usr/lib/libXau.so.6", O_RDONLY) = 3
open("/usr/lib/libXdmcp.so.6", O_RDONLY) = 3
open("/dev/snd/controlC0", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/dev/aloadC0", O_RDONLY) = -1 ENOENT (No such file or directory)
alsamixer: function snd_ctl_open failed for default: No such file or directory

$ lsmod
Module Size Used by
snd_hda_intel 435252 0
snd_pcm_oss 46336 0
snd_mixer_oss 22656 1 snd_pcm_oss
snd_pcm 83076 2 snd_hda_intel,snd_pcm_oss
snd_seq_dummy 10756 0
snd_seq_oss 37760 0
snd_seq_midi 14336 0
snd_rawmidi 29696 1 snd_seq_midi
snd_seq_midi_event 15104 2 snd_seq_oss,snd_seq_midi
snd_seq 56880 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_mid i_event
snd_timer 29704 2 snd_pcm,snd_seq
snd_seq_device 14988 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi ,snd_seq
snd 62756 9 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,sn d_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_de vice
soundcore 15200 1 snd
snd_page_alloc 16904 2 snd_hda_intel,snd_pcm
sha1_generic 10368 0
arc4 9856 0
ecb 10752 0
ppp_mppe 14724 0
ppp_async 16896 0
crc_ccitt 10112 1 ppp_async
binfmt_misc 16776 1
iptable_filter 10752 0
ip_tables 19600 1 iptable_filter
usblp 20224 0
x_tables 23044 1 ip_tables
nvidia 9594120 26
sbp2 30476 0
usbhid 42336 0
intel_agp 34108 0
ppdev 15620 0
parport_pc 40100 1
lp 17156 0
agpgart 42696 2 nvidia,intel_agp
parport 42220 3 ppdev,parport_pc,lp
ohci1394 38576 0
ieee1394 94660 2 sbp2,ohci1394
floppy 64324 0
atl1 40584 0
mii 13312 1 atl1
fbcon 46112 0
tileblit 10752 1 fbcon
font 16384 1 fbcon
bitblit 13824 1 fbcon
softcursor 9984 1 bitblit

$ asoundconf list
Names of available sound cards:
Intel

$ cat /proc/interrupts
CPU0 CPU1
0: 165 0 IO-APIC-edge timer
1: 1449 0 IO-APIC-edge i8042
4: 6 0 IO-APIC-edge
6: 5 0 IO-APIC-edge floppy
7: 0 0 IO-APIC-edge parport0
8: 1 0 IO-APIC-edge rtc0
9: 0 0 IO-APIC-fasteoi acpi
16: 727510 0 IO-APIC-fasteoi ahci, uhci_hcd:usb3, nvidia
17: 293821 0 IO-APIC-fasteoi pata_jmicron, uhci_hcd:usb4
18: 0 0 IO-APIC-fasteoi ehci_hcd:usb1, uhci_hcd:usb7
19: 32 0 IO-APIC-fasteoi uhci_hcd:usb6
21: 3 0 IO-APIC-fasteoi ohci1394
22: 11445 0 IO-APIC-fasteoi HDA Intel
23: 35756 0 IO-APIC-fasteoi ehci_hcd:usb2, uhci_hcd:usb5, ohci1394
2298: 25728 0 PCI-MSI-edge eth0
2299: 41924 0 PCI-MSI-edge ahci
NMI: 0 0 Non-maskable interrupts
LOC: 387855 1037249 Local timer interrupts
RES: 3377 4995 Rescheduling interrupts
CAL: 166 607 Function call interrupts
TLB: 922 2323 TLB shootdowns
SPU: 0 0 Spurious interrupts
ERR: 0
MIS: 0

$ lspci -s 00:1b.0 -v
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
Subsystem: ASUSTeK Computer Inc. Device 81ec
Flags: bus master, fast devsel, latency 0, IRQ 22
Memory at febf8000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel

$ cat /etc/modprobe.d/alsa-base.conf
# autoloader aliases
install sound-slot-0 /sbin/modprobe snd-card-0
install sound-slot-1 /sbin/modprobe snd-card-1
install sound-slot-2 /sbin/modprobe snd-card-2
install sound-slot-3 /sbin/modprobe snd-card-3
install sound-slot-4 /sbin/modprobe snd-card-4
install sound-slot-5 /sbin/modprobe snd-card-5
install sound-slot-6 /sbin/modprobe snd-card-6
install sound-slot-7 /sbin/modprobe snd-card-7

# Cause optional modules to be loaded above generic modules
install snd /sbin/modprobe --ignore-install snd $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-ioctl32 ; /sbin/modprobe --quiet --use-blacklist snd-seq ; }
#
# Workaround at bug #499695 (reverted in Ubuntu see LP #319505)
install snd-pcm /sbin/modprobe --ignore-install snd-pcm $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-pcm-oss ; : ; }
install snd-mixer /sbin/modprobe --ignore-install snd-mixer $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-mixer-oss ; : ; }
install snd-seq /sbin/modprobe --ignore-install snd-seq $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; /sbin/modprobe --quiet --use-blacklist snd-seq-oss ; : ; }
#
install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
# Cause optional modules to be loaded above sound card driver modules
install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-emu10k1-synth ; }
install snd-via82xx /sbin/modprobe --ignore-install snd-via82xx $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq ; }

# Load saa7134-alsa instead of saa7134 (which gets dragged in by it anyway)
install saa7134 /sbin/modprobe --ignore-install saa7134 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist saa7134-alsa ; : ; }
# Prevent abnormal drivers from grabbing index 0
options bt87x index=-2
options cx88_alsa index=-2
options saa7134-alsa index=-2
options snd-atiixp-modem index=-2
options snd-intel8x0m index=-2
options snd-via82xx-modem index=-2
options snd-usb-audio index=-2
options snd-usb-us122l index=-2
options snd-usb-usx2y index=-2
options snd-usb-caiaq index=-2
# Ubuntu #62691, enable MPU for snd-cmipci
options snd-cmipci mpu_port=0x330 fm_port=0x388
# Keep snd-pcsp from being loaded as first soundcard
options snd-pcsp index=-2
# Power down HDA controllers after 10 idle seconds
options snd-hda-intel power_save=10 power_save_controller=N

$ update-grub
Searching for GRUB installation directory ... found: /boot/grub
findfs: unable to resolve 'UUID=31038fcb-b7d2-45e7-80fc-ebf9ee8b3bd2'
Cannot determine root device. Assuming /dev/hda1
This error is probably caused by an invalid /etc/fstab
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
Found kernel: /boot/vmlinuz-2.6.31-14-generic
Found kernel: /boot/vmlinuz-2.6.28-15-generic
Found kernel: /boot/vmlinuz-2.6.28-13-generic
Found kernel: /boot/vmlinuz-2.6.27-11-generic
Found kernel: /boot/memtest86+.bin
Updating /boot/grub/menu.lst ... done



$ ls -l /dev/disk/by-uuid
total 0
lrwxrwxrwx 1 root root 10 2009-11-03 16:57 4CD4E2E9D4E2D3EC -> ../../sda7
lrwxrwxrwx 1 root root 10 2009-11-03 16:57 54A4B449A4B42F7C -> ../../sda5
lrwxrwxrwx 1 root root 10 2009-11-03 16:57 80980CBF980CB5A6 -> ../../sda9
lrwxrwxrwx 1 root root 10 2009-11-03 16:57 A86C2B146C2ADD36 -> ../../sda6
lrwxrwxrwx 1 root root 10 2009-11-03 16:57 B4A000F8A000C2BA -> ../../sda8
lrwxrwxrwx 1 root root 10 2009-11-03 16:57 bb28d2a4-9763-4627-97dc-fe98a51b98c4 -> ../../sdd1
lrwxrwxrwx 1 root root 10 2009-11-03 16:57 d31384db-7522-4340-8fa3-819eaa6d758e -> ../../sdd5


after changing uuid in fstab to bb28d2a4-9763-4627-97dc-fe98a51b98c4

$ update-grub
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
Searching for splash image ... none found, skipping ...
Found kernel: /boot/vmlinuz-2.6.31-14-generic
Found kernel: /boot/vmlinuz-2.6.28-15-generic
Found kernel: /boot/vmlinuz-2.6.28-13-generic
Found kernel: /boot/vmlinuz-2.6.27-11-generic
Found kernel: /boot/memtest86+.bin
Updating /boot/grub/menu.lst ... done

$ cat /boot/grub/menu.lst

# menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default 0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout 3

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
hiddenmenu

# Pretty colours
#color cyan/blue white/blue

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
# chainloader +1
#
# title Linux
# root (hd0,1)
# kernel /vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
## kopt_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=bb28d2a4-9763-4627-97dc-fe98a51b98c4 ro

## default grub root device
## e.g. groot=(hd0,0)
# groot=bb28d2a4-9763-4627-97dc-fe98a51b98c4

## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
## lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all

## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
## indomU=true
## indomU=false
# indomU=detect

## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##


### I had to manually move 2.6.28-15-generic to the top of the list or the system wouldn't boot
### (file not found)

title Ubuntu 9.04, kernel 2.6.28-15-generic
uuid bb28d2a4-9763-4627-97dc-fe98a51b98c4
kernel /boot/vmlinuz-2.6.28-15-generic root=UUID=bb28d2a4-9763-4627-97dc-fe98a51b98c4 ro quiet splash
initrd /boot/initrd.img-2.6.28-15-generic
quiet

title Ubuntu 9.04-new, kernel 2.6.28-15-generic (recovery mode)
uuid bb28d2a4-9763-4627-97dc-fe98a51b98c4
kernel /boot/vmlinuz-2.6.28-15-generic root=UUID=bb28d2a4-9763-4627-97dc-fe98a51b98c4 ro single
initrd /boot/initrd.img-2.6.28-15-generic

### 2.6.31-14 results in 'mountall General Error Mounting filesystems'
### and 'file not found' ( referring to: /boot/vvmlinuz-2.6.31-14 ??)


title Ubuntu 9.04new, kernel 2.6.31-14-generic
uuid bb28d2a4-9763-4627-97dc-fe98a51b98c4
kernel /boot/vvmlinuz-2.6.31-14-generic root=UUID=bb28d2a4-9763-4627-97dc-fe98a51b98c4 ro quiet splash
initrd /boot/initrd.img-2.6.31-14-generic
quiet

title Ubuntu 9.04, kernel 2.6.28-15-generic (recovery mode)
uuid bb28d2a4-9763-4627-97dc-fe98a51b98c4
kernel /boot/vmlinuz-2.6.28-15-generic root=UUID=bb28d2a4-9763-4627-97dc-fe98a51b98c4 ro single
initrd /boot/initrd.img-2.6.28-15-generic

### memtest can't be found
title Ubuntu 9.04, memtest86+
uuid bb28d2a4-9763-4627-97dc-fe98a51b98c4
kernel /boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST



$ ls -l /boot
total 51352
-rw-r--r-- 1 root root 508385 2009-04-01 18:46 abi-2.6.27-11-generic
-rw-r--r-- 1 root root 528128 2009-06-30 17:56 abi-2.6.28-13-generic
-rw-r--r-- 1 root root 528310 2009-09-09 08:56 abi-2.6.28-15-generic
-rw-r--r-- 1 root root 629174 2009-10-16 14:03 abi-2.6.31-14-generic
-rw-r--r-- 1 root root 91358 2009-04-01 18:46 config-2.6.27-11-generic
-rw-r--r-- 1 root root 96768 2009-06-30 17:56 config-2.6.28-13-generic
-rw-r--r-- 1 root root 96804 2009-09-09 08:56 config-2.6.28-15-generic
-rw-r--r-- 1 root root 111371 2009-10-16 14:03 config-2.6.31-14-generic
drwxr-xr-x 2 root root 4096 2009-11-03 17:19 grub
-rw-r--r-- 1 root root 8227661 2009-05-03 12:25 initrd.img-2.6.27-11-generic
-rw-r--r-- 1 root root 7548196 2009-07-17 10:04 initrd.img-2.6.28-13-generic
-rw-r--r-- 1 root root 7549168 2009-09-29 10:15 initrd.img-2.6.28-15-generic
-rw-r--r-- 1 root root 7645225 2009-11-02 11:29 initrd.img-2.6.31-14-generic
-rw-r--r-- 1 root root 128796 2009-10-23 12:11 memtest86+.bin
-rw-r--r-- 1 root root 1031799 2009-04-01 18:46 System.map-2.6.27-11-generic
-rw-r--r-- 1 root root 1449810 2009-06-30 17:56 System.map-2.6.28-13-generic
-rw-r--r-- 1 root root 1450680 2009-09-09 08:56 System.map-2.6.28-15-generic
-rw-r--r-- 1 root root 1664737 2009-10-16 14:03 System.map-2.6.31-14-generic
-rw-r--r-- 1 root root 1074 2009-04-01 18:48 vmcoreinfo-2.6.27-11-generic
-rw-r--r-- 1 root root 1074 2009-06-30 17:58 vmcoreinfo-2.6.28-13-generic
-rw-r--r-- 1 root root 1074 2009-09-09 08:58 vmcoreinfo-2.6.28-15-generic
-rw-r--r-- 1 root root 1196 2009-10-16 14:06 vmcoreinfo-2.6.31-14-generic
-rw-r--r-- 1 root root 2249232 2009-04-01 18:46 vmlinuz-2.6.27-11-generic
-rw-r--r-- 1 root root 3488208 2009-06-30 17:56 vmlinuz-2.6.28-13-generic
-rw-r--r-- 1 root root 3491312 2009-09-09 08:56 vmlinuz-2.6.28-15-generic
-rw-r--r-- 1 root root 3890400 2009-10-16 14:03 vmlinuz-2.6.31-14-generic


# uname -a
Linux joe-desktop 2.6.28-15-generic #52-Ubuntu SMP Wed Sep 9 10:49:34 UTC 2009 i686 GNU/Linux

[SpotTheWonderDog]

Not related to sound, but I just found out that 'Suspend' no longer works.

[andrewabc]

That's not a solution; that's a workaround. The solution is to fix sound/pci/hda/patch_*.c.

It's a solution until a patch is released via updates.
Until then it stops the problem for users. I doubt users want to wait for an update.

[Magnesium]

It's a solution until a patch is released via updates.
Until then it stops the problem for users. I doubt users want to wait for an update.

I would have to agree with Andrew. Yes, a permanent solution would be better, but for now, a workaround will allow those of us with this problem an option to get rid of the the annoying static buzz. I only saw his post by accident scrolling around, but am glad I did!

Crimsun, I would hope that you could add this workaround to your first post.

Thanks,
Mg

[dazer26]

My external mic isn't working with 9.10. It worked fine in 9.04. I have messed with all the settings in the mixer. If I turn the mic volume all the way up, unmute the mic boost and turn my speakers up I can hear some static, if I mute the mic the static goes away...i'd expect to hear this if I had nothing plugged in the mic jack. I tried plugging in my mic in a bunch of the audio jacks (line-in ect) in case it had gotten them mixed up, but no luck. I even tried pluging the mic into the line-in jack then changing the capture to line-in, nothing. So I guess the line-in jack doesn't work either, or maybe the entire capture process. I'm going to try the alsa-backports and see if that helps.

I'm using Kubuntu 9.10. My sound is onboard, Nvidia CK804 AC'97 7.1 surround. Besides the mic and line-in, everying else seems to work that had worked before (get sound out of 4 speakers and the sub, never been able to get sound out of the center speaker tho, it's a 5.1 setup).

[fantan]

And how to fix this:

" Originally Posted by crimsun View Post
That's not a solution; that's a workaround. The solution is to fix sound/pci/hda/patch_*.c."

[marwayusuf]

That's not a solution; that's a workaround. The solution is to fix sound/pci/hda/patch_*.c.

I've tried the workaround but it doesn't work.
Also, how can I fix it?

[EDIT]It's solved now