[SOLVED] E7450 HS: No sound after lid close

[viking1304]

I recently noticed that sometimes I have no sound. Everything starts to work as soon as I reboot.

First thing that I suspected is that I have no sound after sleep. It turns out that if I choose Sleep from main menu, I have sound after wake, with or without power supply connected. Finally I figured out that if I close the lid while I am not on power supply, laptop goes to sleep (as expected), but I have no sound after wake.

Everything looks correct in output screen even after sound stops working.

 

 

I checked my config. Layout ID is 11 with Lilu and AppleALC and I have EAPDFix. Hibernation is properly disabled:

System-wide power settings:
Currently in use:
 standbydelay         10800
 standby              1
 womp                 1
 hibernatefile        /dev/null
 powernap             1
 gpuswitch            2
 halfdim              1
 networkoversleep     0
 disksleep            10
 sleep                1
 autopoweroffdelay    28800
 hibernatemode        0
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         10
 lidwake              1

I am using patched files that Jake made from my origin while I was struggling with my first HS installation.

Am I missing something obvious as usual? Should I try with patched files from latest E7450_Disable840M_A17_HS.zip instead?

[Jake Lo]

It's due to EAPD, EAPDFix.kext suppose to fix that, you could play with the options in info.plist to see what works best for you. Kext is already in the bootpack.

You could try CodecCommander.kext instead if all options failed.

[viking1304]

At the end I removed EAPDFix.kext and replaced it with CodecCommander.kext

 

I had to modify Info.plist inside CodecCommander.kext, since there is no entry for my card ALC3235 (ALC293).

<key>10ec_0293</key>
<string>Realtek ALC3235</string>

My codec dump is very similar to ALC292 dump (0x1a and 0x15 are basically same), so I just duplicated and adjusted ALC292 config.

 

<key>Realtek ALC3235</key><dict>
<key>Custom Commands</key>
<array>
<dict>
<key>Command</key>
<string>0x01a70724</string>
<key>Comment</key>
<string>Node 0x1a - Pin Control (In Enable / VRefEn)</string>
<key>On Init</key>
<true/>
<key>On Sleep</key>
<false/>
<key>On Wake</key>
<true/>
</dict>
<dict>
<key>Command</key>
<data>
AVcIgw==
</data>
<key>Comment</key>
<string>0x15 SET_UNSOLICITED_ENABLE 0x83</string>
<key>On Init</key>
<true/>
<key>On Sleep</key>
<false/>
<key>On Wake</key>
<true/>
</dict>
</array>
<key>Perform Reset</key>
<false/></dict>  

My speaker and headphones now works even after lid close.