winlog Posted November 8, 2011 Share Posted November 8, 2011 The OS (10.7.2) scans DVD (SATA2 attached to MB) periodically, but there is no any disk in DVD. Try to fix it with Chameleon keys and have no success. Please, help me to solve the trouble Link to comment Share on other sites More sharing options...
Gringo Vermelho Posted November 8, 2011 Share Posted November 8, 2011 Disable sleep for hard drives in Energy Saver prefs, or leave a disc in the drive. Link to comment Share on other sites More sharing options...
winlog Posted November 9, 2011 Author Share Posted November 9, 2011 It was done, no effect. And sleep for HDDs is important too. Why if all components are off but HDDs will works? Link to comment Share on other sites More sharing options...
Gringo Vermelho Posted November 9, 2011 Share Posted November 9, 2011 Try updating the DVD drive firmware. Could you post the full make and model of the drive? Disabling sleep for hard drives works for me with my Lite-On DVD-RW drive, it stops checking for a disc. One of my hard drives (a Samsung Spinpoint) makes a very distinct 'blip' sound when it parks its heads before entering standby, I can still hear it doing that with sleep for hard drives disabled. The best solution is to get a Sony Optiarc drive, those are supposed to be the most compatible. Some models are probably more compatible than others though, I know some Optiarcs are rebadged drives from other manufacturers. I saw something somewhere about Mediatek vs. NEC chipset, I believe models with NEC chipset work better with OS X..but I could be wrong. Research and let us know what you find. Link to comment Share on other sites More sharing options...
winlog Posted November 10, 2011 Author Share Posted November 10, 2011 How to update LG? HL-DT-ST DVDRAM GH22NS50: Модель: HL-DT-ST DVDRAM GH22NS50 Ревизия: TN01 Серийный номер: K3F9A8N0309 Revision TN03 was found in the Network Will try to update Link to comment Share on other sites More sharing options...
winlog Posted November 14, 2011 Author Share Posted November 14, 2011 After new firmware was wrote, dvd scans stay no often as before, but it still present. Any new ideas? Link to comment Share on other sites More sharing options...
Gringo Vermelho Posted November 14, 2011 Share Posted November 14, 2011 IIRC Master Chief came up with something in DSDT that fixed this issue, it's somewhere in this thread. http://www.insanelymac.com/forum/index.php?showtopic=188920 Keep looking until you find a post that specifically mentions the fix, it's there. It involves a bit of DSDT patching to the SATA device + the drive must be connected to SATA port 2 (I don't remember if you count port 0, making that physically port 3). Good hunting. If (when) you are ready to give in :grin: I'm pretty sure a Sony Optiarc 7260S will work well with OS X, according to cdrlabs.com it has a NEC MC-10045 chipset. Link to comment Share on other sites More sharing options...
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