farukp Posted October 26, 2012 Share Posted October 26, 2012 Hi. I managed to make a pretty nice ML 10.8.1 installation on my ga-ep45-ud3r and the 9400 nvidia. But now and then there comes a flashing screen and then the system freezes. but only the graphics. If I am watching a movie, then the sound goes on but I cannot do anyting, or maybe I can, but I do not see any feedback through the graphics... Can anyone help? Thanks Link to comment https://www.insanelymac.com/forum/topic/283917-flashing-screen-followed-by-freeze/ Share on other sites More sharing options...
p.H Posted October 26, 2012 Share Posted October 26, 2012 Fisrt of all, did you make your graphics card work ? Link to comment https://www.insanelymac.com/forum/topic/283917-flashing-screen-followed-by-freeze/#findComment-1863254 Share on other sites More sharing options...
farukp Posted October 27, 2012 Author Share Posted October 27, 2012 Fisrt of all, did you make your graphics card work ? Yes, the card works great. the installation was pretty easy. Just had some problems with the audio. after I deleted the hda kext and installed the new once it was also fine. but the graphics worked good from the beginning, except for the flashing... Link to comment https://www.insanelymac.com/forum/topic/283917-flashing-screen-followed-by-freeze/#findComment-1863290 Share on other sites More sharing options...
p.H Posted October 27, 2012 Share Posted October 27, 2012 Yes, the card works great. the installation was pretty easy. Just had some problems with the audio. after I deleted the hda kext and installed the new once it was also fine. but the graphics worked good from the beginning, except for the flashing... Can you set your refresh rate ? Link to comment https://www.insanelymac.com/forum/topic/283917-flashing-screen-followed-by-freeze/#findComment-1863312 Share on other sites More sharing options...
farukp Posted October 27, 2012 Author Share Posted October 27, 2012 In the system prefs? No I can not.... Link to comment https://www.insanelymac.com/forum/topic/283917-flashing-screen-followed-by-freeze/#findComment-1863320 Share on other sites More sharing options...
p.H Posted October 27, 2012 Share Posted October 27, 2012 In the system prefs? No I can not.... Try to set the correct NVCAP value in dsdt ? Link to comment https://www.insanelymac.com/forum/topic/283917-flashing-screen-followed-by-freeze/#findComment-1863449 Share on other sites More sharing options...
farukp Posted October 28, 2012 Author Share Posted October 28, 2012 shall I try this guide? http://tonymacx86.blogspot.co.at/2010/01/advanced-dsdt-fixes-nvidia-graphics.html and where do I get the right values from? - thank you! Link to comment https://www.insanelymac.com/forum/topic/283917-flashing-screen-followed-by-freeze/#findComment-1863479 Share on other sites More sharing options...
farukp Posted November 18, 2012 Author Share Posted November 18, 2012 Hi. p.H. I was not able to solve this problem. It comes and goes at a very radnom rate. I have no clue what causes it. Link to comment https://www.insanelymac.com/forum/topic/283917-flashing-screen-followed-by-freeze/#findComment-1867496 Share on other sites More sharing options...
farukp Posted December 13, 2012 Author Share Posted December 13, 2012 hi. I still was not able to solve this problem. updates etc. have not helped. the system is actually very stable. but this flickering screen followed by a freeze just kills it. Link to comment https://www.insanelymac.com/forum/topic/283917-flashing-screen-followed-by-freeze/#findComment-1873247 Share on other sites More sharing options...
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