Currently I'm using a GT-I9300 and a friend has the GT-I9100 on a CM/AOKP/PA based rom and we both have the issue that VOIP apps can't use the bluetooth headset. On both devices. I get no sound at all and mic doesn't work (BT).
On normal Phone Audio it does work, I can make calls through Cellular using a bluetooth headset.
On stock ROMs I don't have this problem. Skype and other VOIP apps can use Bluetooth headset correctly. Only on CM/PA/AOKP based ROMs.
Would this be a global CM issue? Would this be kernel related? I have triend several kernels and all have this issue. On STOCK Samsung ROMs I don't have the issue. Not on GT-I9300 and GT-I9100. using the same kernels which I tried in CM/AOKP/PA.
I've tried Ressurection Remix, Temasek CM10.2, JellyBAM 9.1.2 and others. All have the same issue.
On all STOCK samsung roms (JB Leak 4.2.2, Stock 4.1.2 ROMs, currently I'm on XXEMG4 STOCK based rom) it works
I'd like to use a CM/AOKP/PA ROM with bluetooth VOIP apps support.
Can anyone test this and let me know if it works? Is this a kernel issue?
Perhaps a ROM developer can shine some light on this.
I have seen that TheWhisp has fixed a bluetooth audio VOIP issue on one of his ROMs for the Samsung Mini II, I know this is a qualcomm device and not exynos, but this info could be relevant:
GT-I9300 and GT-i9100 are Exynos devices, Mini 2 is Qualcomm. So the fix I used on Mini 2 wouldn't work on your devices. Anyway, I fixed it on Mini 2 simply by updating audio HAL from latest CAF sources.