Hello and apologies in advance if i am misusing the forum.
I am dual booting Garuda Linux on an 27 inch imac late 2011 and i'm having a blast...that being said, the only issue i am having is that my headset microphone is not working. I have searched the web for a solution, but i was unable to find one.
Let me clarify that the imac has a combo 3.5mm jack slot and that i am a new linux user in general, so any help would be much appreciated.
Thank you for your time in advance..
Try (right) click on Speaker icon , volume control.
Read
please
and post
inxi -Fxxxza
as text!
and
2 Likes
System: Kernel: 5.11.2-zen1-1-zen x86_64 bits: 64 compiler: gcc v: 10.2.1
parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux-zen root=UUID=546a35dc-68d5-4074-bbd9-ebbb1d248b6c rw
rootflags=subvol=@ quiet splash rd.udev.log_priority=3 vt.global_cursor_default=0
systemd.unified_cgroup_hierarchy=1 loglevel=3
Desktop: KDE Plasma 5.21.2 tk: Qt 5.15.2 info: latte-dock wm: kwin_x11 dm: SDDM Distro: Garuda Linux
Machine: Type: Desktop System: Apple product: iMac12,2 v: 1.0 serial: <filter> Chassis: type: 13
v: Mac-942B59F58194171B serial: <filter>
Mobo: Apple model: Mac-942B59F58194171B v: iMac12,2 serial: <filter> UEFI: Apple v: 87.0.0.0.0
date: 06/14/2019
CPU: Info: Quad Core model: Intel Core i5-2500S bits: 64 type: MCP arch: Sandy Bridge family: 6 model-id: 2A (42)
stepping: 7 microcode: 2F L2 cache: 6 MiB
flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 21552
Speed: 1746 MHz min/max: 1600/3700 MHz Core speeds (MHz): 1: 1746 2: 3311 3: 1709 4: 1773
Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled
Type: l1tf mitigation: PTE Inversion; VMX: conditional cache flushes, SMT disabled
Type: mds mitigation: Clear CPU buffers; SMT disabled
Type: meltdown mitigation: PTI
Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, IBRS_FW, STIBP: disabled, RSB filling
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics: Device-1: Intel 2nd Generation Core Processor Family Integrated Graphics vendor: Apple driver: i915 v: kernel
bus ID: 00:02.0 chip ID: 8086:0102 class ID: 0380
Device-2: Advanced Micro Devices [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT] vendor: Apple
driver: radeon v: kernel bus ID: 01:00.0 chip ID: 1002:6740 class ID: 0300
Device-3: Apple FaceTime HD Camera (Built-in) type: USB driver: uvcvideo bus ID: 1-2:3 chip ID: 05ac:850b
class ID: 0e02 serial: <filter>
Display: x11 server: X.Org 1.20.10 compositor: kwin_x11 driver: loaded: ati,intel,radeon unloaded: modesetting
alternate: fbdev,vesa display ID: :0 screens: 1
Screen-1: 0 s-res: 2560x1440 s-dpi: 96 s-size: 677x381mm (26.7x15.0") s-diag: 777mm (30.6")
Monitor-1: eDP res: 2560x1440 hz: 60 dpi: 109 size: 597x336mm (23.5x13.2") diag: 685mm (27")
OpenGL: renderer: AMD TURKS (DRM 2.50.0 / 5.11.2-zen1-1-zen LLVM 11.1.0) v: 3.3 Mesa 20.3.4 compat-v: 3.1
direct render: Yes
Audio: Device-1: Intel 6 Series/C200 Series Family High Definition Audio driver: snd_hda_intel v: kernel
bus ID: 00:1b.0 chip ID: 8086:1c20 class ID: 0403
Device-2: AMD Turks HDMI Audio [Radeon HD 6500/6600 / 6700M Series] vendor: Apple driver: snd_hda_intel
v: kernel bus ID: 01:00.1 chip ID: 1002:aa90 class ID: 0403
Sound Server: ALSA v: k5.11.2-zen1-1-zen
Network: Device-1: Broadcom NetXtreme BCM57765 Gigabit Ethernet PCIe driver: tg3 v: kernel port: 2000 bus ID: 02:00.0
chip ID: 14e4:16b4 class ID: 0200
IF: enp2s0 state: up speed: 100 Mbps duplex: full mac: <filter>
Device-2: Qualcomm Atheros AR93xx Wireless Network Adapter vendor: Apple AirPort Extreme driver: ath9k
v: kernel port: 2000 bus ID: 03:00.0 chip ID: 168c:0030 class ID: 0280
IF: wlp3s0 state: down mac: <filter>
Bluetooth: Device-1: Apple Built-in Bluetooth 2.0+EDR HCI type: USB driver: btusb v: 0.8 bus ID: 1-1.1.1:5
chip ID: 05ac:8215 class ID: fe01 serial: <filter>
Message: Required tool hciconfig not installed. Check --recommends
Drives: Local Storage: total: 931.51 GiB used: 30.9 GiB (3.3%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/sda maj-min: 8:0 vendor: Seagate model: ST31000528AS size: 931.51 GiB block size: physical: 512 B
logical: 512 B speed: 3.0 Gb/s rotation: 7200 rpm serial: <filter> rev: AP63 scheme: GPT
Partition: ID-1: / raw size: 92.61 GiB size: 92.61 GiB (100.00%) used: 30.87 GiB (33.3%) fs: btrfs dev: /dev/sda5
maj-min: 8:5
ID-2: /boot/efi raw size: 200 MiB size: 196.9 MiB (98.45%) used: 27.5 MiB (14.0%) fs: vfat dev: /dev/sda1
maj-min: 8:1
ID-3: /home raw size: 92.61 GiB size: 92.61 GiB (100.00%) used: 30.87 GiB (33.3%) fs: btrfs dev: /dev/sda5
maj-min: 8:5
ID-4: /var/log raw size: 92.61 GiB size: 92.61 GiB (100.00%) used: 30.87 GiB (33.3%) fs: btrfs dev: /dev/sda5
maj-min: 8:5
ID-5: /var/tmp raw size: 92.61 GiB size: 92.61 GiB (100.00%) used: 30.87 GiB (33.3%) fs: btrfs dev: /dev/sda5
maj-min: 8:5
Swap: Kernel: swappiness: 10 (default 60) cache pressure: 75 (default 100)
ID-1: swap-1 type: zram size: 1.94 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram0
ID-2: swap-2 type: zram size: 1.94 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram1
ID-3: swap-3 type: zram size: 1.94 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram2
ID-4: swap-4 type: zram size: 1.94 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram3
Sensors: System Temperatures: cpu: 54.0 C mobo: N/A
Fan Speeds (RPM): cpu: 939
Info: Processes: 229 Uptime: 5m wakeups: 0 Memory: 7.74 GiB used: 2.41 GiB (31.1%) Init: systemd v: 247 Compilers:
gcc: 10.2.0 clang: 11.1.0 Packages: pacman: 1846 lib: 552 Shell: fish v: 3.1.2 running in: konsole
inxi: 3.3.01
Hope i posted this the right way...
2 Likes
Fine but did you
Next
```
Mobo: Apple model: Mac-942B59F58194171B v: iMac12,2
```
Maybe try whoogle search or special apple forum.
1 Like
I tried through volume control, the mic is not identified. Just the internal mic. I have tried with alsamixer and pavucontrol, no luck. I have tried to modify a .conf file inside alsamixer if i am not mistaken and tweaked around, but i ended up messing the system. Thank the developers of garuda, i managed to snapshot back to a stable version....
2 Likes
Apple special cases need some effort to find the proper workaround.
Have you checked Archwiki? I suggest you study these articles to make your troubleshooting joyful 
(Don't forget to give feedback)
https://wiki.archlinux.org/index.php/IMac_Aluminum#Getting_sound_to_work_right
https://wiki.archlinux.org/index.php/PulseAudio/Troubleshooting#Getting_debug_output_from_pulseaudio
https://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architecture/Troubleshooting#No_microphone_input
Welcome to Garuda ĪĪ¹Ī¬Ī½Ī½Ī·! 
3 Likes
ĪĻ ĻĪ±ĻĪ¹ĻĻĻ!!! I will check these out and report back my progress...
1 Like
Here is some update....
I've tried editing the '/etc/modprobe.d/sound.conf' file
with the following options but nothing worked
options snd-hda-intel model=mbp53
options snd-hda-intel model=mbp55
options snd-hda-intel model=imac27
options snd-hda-intel model=imac27_122
options snd-hda-intel model=mbp101
options snd-hda-intel model=mbp81
options snd-hda-intel model=mba42
options snd-hda-intel model=auto
options snd-hda-intel model=apple
options snd-hda-intel model=mba6
The closest one was the 'imac27' option which gave me an internal mic and microphone,
but then it could not detect my headphones when i plugged them in, thus i could not
test the mic...
I am out of ideas... 
I donāt know how iMac HW is, concerning audio I/O ports.
Normal PC audio I/O uses two ports. Is it the same or is there only one, like on mobiles?
Or try other type of mic/headset HW. 
2 Likes
just one, like in mobiles...but the thing is that when i boot to osx,
the mic works just fine...i don't know...i've found that many users have
the same issue in linux in general but i haven't found a general solution.
In an ubuntu forum i think, the guy who had the same problem like me
just bought a usb headset...and they marked the topic as solved.... 
1 Like
Have you read this?
https://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architecture#Correctly_detect_microphone_plugged_in_a_4-pin_3.5mm_(TRRS)_jack
List of models:
https://www.kernel.org/doc/html/latest/sound/hd-audio/models.html
3 Likes
No change...
These are the same options as the ones i tried before, but in a different
file with underscores plus an 'index=0'.
These are the options i tried before in '/etc/modprobe.d/sound.conf
options snd-hda-intel model=mbp53
options snd-hda-intel model=mbp55
options snd-hda-intel model=imac27
options snd-hda-intel model=imac27_122
options snd-hda-intel model=mbp101
options snd-hda-intel model=mbp81
options snd-hda-intel model=mba42
options snd-hda-intel model=auto
options snd-hda-intel model=apple
options snd-hda-intel model=mba6
And these are the ones i tried on '/etc/modprobe.d/alsa-base.conf
options snd_hda_intel index=0 model=mbp53
options snd_hda_intel index=0 model=mbp55
options snd_hda_intel index=0 model=imac27
options snd_hda_intel index=0 model=imac27_122
options snd_hda_intel index=0 model=mbp101
options snd_hda_intel index=0 model=mbp81
options snd_hda_intel index=0 model=mba42
options snd_hda_intel index=0 model=auto
options snd_hda_intel index=0 model=apple
options snd_hda_intel index=0 model=mba6
I hoped maybe these little details might make a change, but no luck...
Everything runs great so far on garuda, but this obstacle is making me boot to osx
everytime i want to use the microphone..
Thank you petsam for your help so far...
I suppose you tested them one by oneā¦ 
Have you tried these sites?
2 Likes
Yes i didā¦ 
I did but my mic isnāt getting picked upā¦ just the internal oneā¦
Get info from logs and find relevant messages, find the HW paths assigned and maybe using udevadm something comes up, so you may use more specific iSearches.
Run journalctl -f in a terminal and unplug and replug your headset, watching for messages.
With man udevadm you could search for useful info, attributes etc of HW... and so on... Standard troubleshooting 
I know it's not an answer, but audio HW gurus are rare .
Maybe @Bro has some tip from his decades long experience 
2 Likes