[LG Optimus 4X HD] zicoxx:
In Cm rom 10.1 for lg optimus 4x there is a problem : fm radio do not run..

infact i try to use Spirit FM but no audio also if tuning runs very well..

so i try some things to set audio but no luck..

but today i try a trick that NOW its' runs very well and i hear audio..

Finally we have also FM Radio Working (Audio and Tune)

And i'm very happy..

The trick :

1) install a custom rom (PAC,AOKP,CM or other..it's no important

2) install alsa mixer from market (https://play.google.com/store/apps/details?id=com.skvalex.alsamixer&feature=search_result)

3) runs alsa mixer and install bin files

4) install Spirit FM Lite (from thread of XDA by Mikereidis) or Buy Spirit FM unlocked from market (it's a great app)

5) open Spirit FM from appdrawer,Yes for root permission and set it for your country (Band in khz)..Also In Settings page of Spirit FM choose Debug and Check ALSA PCM OPEN..Leave all settings in auto mode..

6) For Audio in Speaker - Open ALSA Mixer and check these Settings : Left SPK Mixer INB2 and set it ON

7) For Audio in Speaker - Open ALSA Mixer and check these Settings : Right SPK Mixer INB2 and set it ON

8) For Audio in Headset - Open ALSA Mixer and check these Settings : Left HP Mixer INB2 and set it ON thanks jonnya70

9) For Audio in Headset - Open ALSA Mixer and check these Settings : Right HP Mixer INB2 and set it ON thanks jonnya70

10) Now relaunch SpiritFM and you can hear audio and tuning your favourite fm stations..

EDIT

As reported by some users (Thanks Lamerduck) and me Spirit FM has some problem as loud volume and no audio when screen off..So use these settings to solve them..

Setting for normal volume (no very hight loud)

Settings-->Audio-->Volume Scale from 100 to 10

(you can increase this setting in 15 for a volume little loud)

Setting to Enable FM Radio Audio when Screen OFF

Settings-->Debug->Silent Loop (check it)

* Probably audio works also you unchecked ALSA PCM OPEN in Settings-->Debug..Yesterday i test without this setting and Audio Works so well..So you can test and report it..

Naturally you can create a script with Script Manager that runs on everyboot to set these parameters for ALSA..Infact on every reboot alsa mixer lost these settings so every time you can use fm radio you can set these settings on alsa..

PS i find this trick in LG Optimus 2x Thread for Spirit FM..

This is the Original link:

http://xdaforums.com/showpost.php?p=38831550&postcount=8

i have only change settings for our ALSA (INB2)..So Credit for sudden36

These trick it's no difficult to use..

EDIT I edit a simple script from lg2x discussion changed the settings for OUR ALSA Configuration..

So you can use it for run on every reboot using Script Manager or you can use in init.d..In zip you find also my p880.conf that provide settings for FM Radio Audio and a little loud volume for speaker..

Also i attach xbin files for alsa mixer so developer can use it for roms and Alsa Mixer 1.0.9 (16 jan 2013)..

Mikereidis (developer of Spirit FM) has release a first experimental version of Spirit FM Light with LG P880 Support

This is the link where you can download it and report some problems too

Version 12062013 (NEW)

http://d-h.st/i5I