I have used Ubuntu off and on until recently installing Jaunty on a PC. Everything worked so well, I decided to do a dual boot on my iMac 7,1. I installed rEFIt and got Jaunty running with a couple of issues.
The primary issue was no sound. I looked the forums and the wiki over and managed to get sound, albeit very poor quality, by adding the line 'options snd-hda-intel model=imac24' to /etc/modprobe.d/options
I now have sound, but it is faintly reminiscent of the quality of a pocket transistor AM radio, in the late 60's. I upgraded to Karmic in the hopes I might find a fix, but no hope.
As mentioned, I looked through these forums to no avail. I've scoured the Kubuntu forums, the Mint forums and other Linux forums, but cannot seem to find a solution. It seems there are others having the same problem, but there are no apparent solutions.
I never really cared for OS X and this machine was a bit of a bald-headed step-child until I got Ubuntu running on it. I've been around long enough to know Ubuntu requires some tweaks to get things working, so I am hoping someone might be able to provide a bit of help. I would ask you to assume I know nothing about Ubuntu and provide assistance in that manner. I will provide as much information as I know to provide.
Aluminum iMac 7,1
Dual boot OS X Snow Leopard and Karmic Koala using rEFIt
Output of lspci -
Code:
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 03)
00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03)
00:1c.5 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 6 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon HD 2400 XT
03:00.0 FireWire (IEEE 1394): Agere Systems FW643 PCI Express1394b Controller (PHY/Link) (rev 05)
04:00.0 Network controller: Broadcom Corporation BCM4328 802.11a/b/g/n (rev 03)
05:00.0 Ethernet controller: Marvell Technology Group Ltd. Marvell Yukon 88E8058 PCI-E Gigabit Ethernet Controller (rev 13)
utput of lspci -l
Code:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC889A Analog [ALC889A Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC889A Digital [ALC889A Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
output of aplay -l
Code:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC889A Analog [ALC889A Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC889A Digital [ALC889A Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
output of hwinfo --sound
Code:
12: PCI 1b.0: 0403 Audio device
[Created at pci.318]
UDI: /org/freedesktop/Hal/devices/pci_8086_284b
Unique ID: u1Nb.2frKzjmhZt4
SysFS ID: /devices/pci0000:00/0000:00:1b.0
SysFS BusID: 0000:00:1b.0
Hardware Class: sound
Model: "Intel 82801H (ICH8 Family) HD Audio Controller"
Vendor: pci 0x8086 "Intel Corporation"
Device: pci 0x284b "82801H (ICH8 Family) HD Audio Controller"
SubVendor: pci 0x106b "Apple Computer Inc."
SubDevice: pci 0x00a0
Revision: 0x03
Driver: "HDA Intel"
Driver Modules: "snd_hda_intel"
Memory Range: 0x50700000-0x50703fff (rw,non-prefetchable)
IRQ: 20 (2957 events)
Module Alias: "pci:v00008086d0000284Bsv0000106Bsd000000A0bc04sc03i00"
Driver Info #0:
Driver Status: snd_hda_intel is active
Driver Activation Cmd: "modprobe snd_hda_intel"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Output of lsusb -
Code:
Bus 002 Device 003: ID 05ac:8502 Apple, Inc. Built-in iSight
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 002: ID 05ac:8242 Apple, Inc.
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 002: ID 046d:c044 Logitech, Inc. LX3 Optical Mouse
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 05ac:0220 Apple, Inc. Aluminum Keyboard
Bus 001 Device 003: ID 05ac:1006 Apple, Inc. Hub in Aluminum Keyboard
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 003: ID 05ac:8206 Apple, Inc. Bluetooth HCI
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Any help will be deeply appreciated. I'm confident there has to be a fix for this, I'm just not savvy enough to sort it myself.
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