piarullir

Guys i have a lot of this HDA output on kernel messages:

Sound assertion in AppleHDAWidget at line 3095
Sound assertion in AppleHDAWidget at line 2175

repeated many times every minute...

it's normal?

bcc9, on 19 October 2012 - 05:38 AM, said:

For me with 10.8.2 updating nvidia drivers was necessary for solving that annoying issue... (i've tried 10.8.x GeForce.kext with no luck)

bcc9, on 19 October 2012 - 05:38 AM, said:

There is a software for monitoring power consumption? otherwise i can make a test on the standby time for seeing difference (in the same conditions of course)
in linux the difference is noticeable (40-60 min of battery obtained)

PS: intuitively temperature seems to be substantially lower (but i haven't run stress test to confirm)

bcc9, on 18 October 2012 - 09:25 PM, said:

With older 10.7 installation dual monitor was ok (both vga and hdmi) but with older DSDT (in this moment i've deleted Lion installation...)

I've tested that booting in safe mode (-x at boot) make the video working properly and dual monitor works like a charm, but no qe/ci enabled... the problem is when the system loads the nvidia kext...

A little question... the DSDT edit i've suggested for disabling 9200m can replace your "z01i -> DSDT" edit?
in theory loading kext will skip the discrete card (the system ignore it)?

In this case we can try this combination for solve the problem? (if it make sense)

bfbruin, on 18 October 2012 - 11:48 PM, said:

Good
can you try if dual monitor works?

Edit: the problem is generalized... that issue heppens every time the video card try to change or reset output resolution (for example when i try to change the resolution of my primary screen) thus seems to be no related to secondary output.

The good news is that when the issue happens you can solve it forcing a user logout (shift+cmd+Q then enter) and the system adjust your screens "automagically"

Any ideas?

I Forgot to tell that i've updated to 10.8.2

EDIT2: Problem Solved
Investigating on the net for the problem i've found that it's a nvidia driver problem... it was solved with the newest drivers (that was not released for our video card)

I've Downloaded this drivers http://www.nvidia.co...f02-driver.html
then i've extracted all contents with Pacifist and putted in /S/L/E

reboot and... solved! now works like a charm! dual monitor hot plug and changing resolution without problems

bcc9, on 18 October 2012 - 06:33 PM, said:

i've just checked... no reference to

[/size][/color]
[color=#555555][size=3]02:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 9200M GS]

i can test this solution using the system and monitoring battery duration and heating

For the management of a second display do you have any idea?

bcc9, on 18 October 2012 - 06:00 PM, said:

I've tested just now,

system is working with full qe/ci, in system information "graphics informations" are completely disappeared... (for both 9440 and 9200)
and it tells me "Error retrieving informations" (but is still working)

i attach my ioreg -lw0