khaledem Posted February 28, 2013 Share Posted February 28, 2013 Hello , First i want to thank this amazing form , as i have been for three days trying install mountain lion on my laptop dell but i failed many times but with help of this forum members and moderators i success installing it . but unfortunately i faced two problems first i have to boot in safe boot with -x to enter the OS second when i log in the mouse doesn't work but keyboard works well !! so i hope any body can help me this is the first topic of instillation http://www.insanelymac.com/forum/topic/286636-system-uptime-in-nanoseconds-error-in-boot-help-please/ Link to comment Share on other sites More sharing options...
khaledem Posted February 28, 2013 Author Share Posted February 28, 2013 i solved the first problem remain second when i log in the mouse doesn't work but keyboard works well !! Link to comment Share on other sites More sharing options...
ameris_cyning Posted February 28, 2013 Share Posted February 28, 2013 1. Specs of machine 2. Please indicate how your mouse is hooked up (Bluetooth/USB/PS2 mouse) Link to comment Share on other sites More sharing options...
khaledem Posted February 28, 2013 Author Share Posted February 28, 2013 My Dell DELL XPS 15z Intel Core i7-2640M CPU@2.80 GHz 8GB Memory DDR3 1333 intell HD Graphics 3000 (GT2+) USB Mouse + Touchpad both not working Link to comment Share on other sites More sharing options...
ameris_cyning Posted February 28, 2013 Share Posted February 28, 2013 My Dell DELL XPS 15z Intel Core i7-2640M CPU@2.80 GHz 8GB Memory DDR3 1333 intell HD Graphics 3000 (GT2+) USB Mouse + Touchpad both not working Are you connecting them through your front USB ports? If so try hooking them on the back Link to comment Share on other sites More sharing options...
khaledem Posted February 28, 2013 Author Share Posted February 28, 2013 there are only 2 USB ports in left of my laptop Link to comment Share on other sites More sharing options...
ameris_cyning Posted February 28, 2013 Share Posted February 28, 2013 there are only 2 USB ports in left of my laptop Found your problem. Laptops require further tweaking. These are IOUSBFamily.kext and IOUSBMassStorageClass.kext 10.8 rollback kexts Download and use kext wizard (or any other kext installers) with these kexts. Sorry about my lack of comprehension Archive.zip Link to comment Share on other sites More sharing options...
sqishy Posted June 30, 2013 Share Posted June 30, 2013 The XPS 15z has 3 USB ports the 2 front ones are USB3 and the back one is eSATA/USB2 you can still use this but it does feel a bit tighter Link to comment Share on other sites More sharing options...
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