Infamosus Posted May 31, 2011 Share Posted May 31, 2011 Hi dear Insanelymac fellows. After successfull installation of SL (10.6.6.) it worked like a charm for months. My hardware specs are below. Eventually, after one of the boots, it went bad in some hard-to-describe behaviour. I suspect that in last successful boot, I'd played with 'Monitors' settings, refreshing screen resolution for attached as second monitor TV. The situation is as follows: after boot, it shows desktop (autologon on) for a several seconds, after that it goes to blue, than to light blue, that to desktop again and so forth. Can do this for hours, nothing changing. I recorded short video here, to give you an idea of what's going on. My backup snow leopard installation works fine. Windows works fine. So it shouldn't be a hardware problem. Please help me, in which direction I should start to investigate an issue? Thanks in advance HW: Gigabyte GA-EP45T, Gigabyte Radeon HD5870 (0x6898), 4GB DDR3, CPU C2Q 9450 Link to comment Share on other sites More sharing options...
jtp.redson Posted June 8, 2011 Share Posted June 8, 2011 Boot into single mode by pressing '-s' at chameleon and then mount your boot volume using this /sbin/fsck -fy /sbin/mount -uw / and then cd to /Users/Home(or your UserName)/Library/Preferences and look for com.apple.preference.displays.[long number].plist or something like that and delete it (or you can back up all of them and delete all preferences) Also cd to /Users/Home(or your UserName)/Library/Caches and delete all caches too. Reboot and let me know. Hopefully it works. Link to comment Share on other sites More sharing options...
Recommended Posts