navendugoyal Posted May 7, 2012 Share Posted May 7, 2012 i have a vanilla os lion 10.7.3 running on HP Pavillion dv 6 with i7 2670 qm 8 gb ram 720 gb hd intel hd 3000 with 1920 x 1080 resolution - fully working ati radeon 7470 1gb i have a strange problem . the display is identified fine with full qe/ci but the brightness is slighly low as compared to Windows 7 which i am dual booting the strangest part is that if i put the computer to sleep and then wake it up , i get full brightness , same as in windows 7. how can i fix this and get full brightness without going to sleep mode . Link to comment https://www.insanelymac.com/forum/topic/278795-low-screen-backlight/ Share on other sites More sharing options...
p.H Posted May 8, 2012 Share Posted May 8, 2012 I think this thread will solve your problem http://www.insanelymac.com/forum/index.php?showtopic=213668 Link to comment https://www.insanelymac.com/forum/topic/278795-low-screen-backlight/#findComment-1818740 Share on other sites More sharing options...
navendugoyal Posted May 8, 2012 Author Share Posted May 8, 2012 it gives me a operation not permitted error while doing chown. also i would like to add that my brightness slider works well oob but the maximum is lower than the maximum level in windows 7 which i am dual booting . i get the same max level as in windows when the computer wakes from sleep Link to comment https://www.insanelymac.com/forum/topic/278795-low-screen-backlight/#findComment-1818792 Share on other sites More sharing options...
TUX FIRE Posted May 8, 2012 Share Posted May 8, 2012 the problem is when u boot, the mac doesn't check if it on AC power or not, u can verify that, shutdown your mac, remove the battery and keep just the Ac power, turn on the mac, once on desktop go to About this mac --> more information --> power, and u'll see that actual energy source it's the Battery. Something wrong in DSDT maybe ? Link to comment https://www.insanelymac.com/forum/topic/278795-low-screen-backlight/#findComment-1818836 Share on other sites More sharing options...
navendugoyal Posted May 8, 2012 Author Share Posted May 8, 2012 so how do i correct it any ideas ? please help me out its bugging me like anything in about this mac->system info->power i get "There was an error while gathering this information." i have also attached my dsdt can u help me please thanks dsdt.aml.zip Link to comment https://www.insanelymac.com/forum/topic/278795-low-screen-backlight/#findComment-1818887 Share on other sites More sharing options...
TUX FIRE Posted May 8, 2012 Share Posted May 8, 2012 for this the problem isn't DSDT bur battery kext, try to use AppleSmartBatteryManager, no voodoo battery Link to comment https://www.insanelymac.com/forum/topic/278795-low-screen-backlight/#findComment-1818899 Share on other sites More sharing options...
navendugoyal Posted May 9, 2012 Author Share Posted May 9, 2012 tried it but to no avail , although i get full info in about this mac-- > power but the brightness problem is still not sorted out Link to comment https://www.insanelymac.com/forum/topic/278795-low-screen-backlight/#findComment-1819056 Share on other sites More sharing options...
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