LevinD Posted October 6, 2006 Share Posted October 6, 2006 Alright so I have installed OSX 10.4.6 and updated to 10.4.7, everything went smooth but of corse there had to be a catch! Initialy the sound did not work so I turned to the forums and searched my way to this solution: 1. Delete AppleHDA.kext: * In Terminal, type: * sudo rm -rf /System/Library/Extensions/AppleHDA.kext * sudo rm -rf /System/Library/Extensions.mkext * sudo rm -rf /System/Library/Extensions.kextcache 2) Edit AppleAzaliaAudio.kext: * In Terminal, type: sudo pico /System/Library/Extensions/AppleAzaliaAudio.kext/Contents/Info.plist * Search for (use hotkey= ctrl + w): <key>IOHDAudioCodecVendorID</key> * change the string to: <string>0x10ec0880</string> * Exit pico * sudo pico /System/Library/Extensions/AppleAzaliaAudio.kext/Contents/PlugIns/AppleAzaliaController.kext/Contents/Info.plist * Search for (use hotkey= ctrl + w): <key>IOPCIPrimaryMatch</key> * change the string to: <string>0x27d88086</string> * Exit pico 3) Clean up the system: * In Terminal, type: * sudo diskutil repairpermissions / * sudo kextload /System/Library/Extensions/AppleAzaliaAudio.kext * kextcache -k /System/Library/Extensions/ 4) Then, reboot and enjoy sound out of two channels. I did every step with great precision, rebooted and alas I was still without sound only now the Output selection was now visible and everything seemed normal the only problem was that there was no SOUND. I check the system/library and found that both Extensions.mkext and Extensions.kextcache were still there! So I tryed again, rebooted and again they returned! Please Help, Thanks! Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/ Share on other sites More sharing options...
Andrey Posted October 6, 2006 Share Posted October 6, 2006 I'm not sure what exactly is causing your audio problem, but the mkext and kextcache are rebuilt every time you reboot. Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203293 Share on other sites More sharing options...
Guest bikedude880 Posted October 6, 2006 Share Posted October 6, 2006 Those are supposed to return. They are caches of all the extensions in "/System/Library/Extensions". It helps (as far as I know) the system boot faster. Hope this helps. Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203294 Share on other sites More sharing options...
LevinD Posted October 6, 2006 Author Share Posted October 6, 2006 Well it helps to tell me what isn't wrong, but I need to know what is wrong.. Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203295 Share on other sites More sharing options...
Rammjet Posted October 6, 2006 Share Posted October 6, 2006 Well it helps to tell me what isn't wrong, but I need to know what is wrong.. The title of your thread only expressed extreme concern about the extensions files. You got that answer. A more appropriate title might have mentioned your problem with getting sound to work. I was still without sound only now the Output selection was now visible and everything seemed normal the only problem was that there was no SOUND. I check the system/library and found that both Extensions.mkext and Extensions.kextcache were still there! Did you go through the Appendix to the guide to be sure you were using the correct vendor/device strings for your hardware? To speed booting, OSX builds a database of all the kexts and the devices they can connect to. If you change a kext, that database needs to be updated. There are a couple of ways to do that, but the easiest is to delete the database to force it to be rebuilt. Thus the files reappear but with the updated data. Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203297 Share on other sites More sharing options...
Andrey Posted October 6, 2006 Share Posted October 6, 2006 Also ensure your audio driver has the appropriate permissions. Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203301 Share on other sites More sharing options...
LevinD Posted October 6, 2006 Author Share Posted October 6, 2006 I see.. Well now I know! I did read the appendix and set everything right. Also ensure your audio driver has the appropriate permissions. How is that done? Thanks again. Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203302 Share on other sites More sharing options...
Rammjet Posted October 6, 2006 Share Posted October 6, 2006 Just out of curiosity, what were the two strings you used? Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203304 Share on other sites More sharing options...
LevinD Posted October 6, 2006 Author Share Posted October 6, 2006 Did you want to know which strings I changed? Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203307 Share on other sites More sharing options...
Rammjet Posted October 6, 2006 Share Posted October 6, 2006 I want to know what you changed both of them to: like "0x10ce0882" Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203311 Share on other sites More sharing options...
Andrey Posted October 6, 2006 Share Posted October 6, 2006 I see.. Well now I know! I did read the appendix and set everything right. How is that done? Thanks again. sudo chmod -R 755 /System/Library/Extensions sudo chown -R root:wheel /System/Library/Extensions Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203315 Share on other sites More sharing options...
LevinD Posted October 6, 2006 Author Share Posted October 6, 2006 I changed one to <string>0x10ec0880</string> and the other to <string>0x27d88086</string> Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203316 Share on other sites More sharing options...
Rammjet Posted October 6, 2006 Share Posted October 6, 2006 I changed one to <string>0x10ec0880</string>and the other to <string>0x27d88086</string> Those look good. Lots of other people with ALC880 audio have had success with the guide. Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203318 Share on other sites More sharing options...
LevinD Posted October 6, 2006 Author Share Posted October 6, 2006 sudo chmod -R 755 /System/Library/Extensionssudo chown -R root:wheel /System/Library/Extensions I didn't do that, I'll try it and let you know how it goes. Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203319 Share on other sites More sharing options...
Andrey Posted October 6, 2006 Share Posted October 6, 2006 If I edit a driver or extension, and DON'T do that, even if I repair permissions, it doesn't validate my changes the next time I reboot. Good luck! Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203325 Share on other sites More sharing options...
LevinD Posted October 6, 2006 Author Share Posted October 6, 2006 I have good news and bad news, I have sound but only through my headphones, looks like my hackbook is turning out to be more of a hackpod. Any ideas? Link to comment https://www.insanelymac.com/forum/topic/29499-attack-of-the-returning-extensionsmkext-and-extensionskextcache-files/#findComment-203330 Share on other sites More sharing options...
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