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Nvidia 550Ti Sleep / Wake / Freeze Thread

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10.8.2 is better but they still occur. I believe it is a memory leak in the GPU usage - I can monitor mine using an application I run 24x7 (BOINC from BERKLEY) and it uses Open CL for GPU*processes. When I boot it reports 905M free on my GT 550M; after overnight running, screen saver comes in once and then the display sleeps for 8 hours, that number drops to 840M or so. This continues throughout the day until the memory drops so low I'll get messages (internal to BOINC) about how the process is waiting for GPU memory. If I do not reboot, it will eventually freeze trying to come out of a screen saver or back from display sleep with the Channel Timeout message.

My son's MacBookPro has a similar issue although his reboots after the error, not a freeze; my wife's MacBookPro freezes. My daughter's MacBook has not failed, as far as I know, and she NEVER reboots. My MacMini Server has freezes but they are really rare.

The point is these issues will eventually be addressed and are not unique to the 550TI; turning off the cutesy stuff like background changes will reduce the affect and rebooting once a day may 'eliminate' it for most of us altogether.

vczilla's fix works; I did it wrong before he posted his fix and had issues so if some of you are having issues, just clean it up and try again; ignore the error messages on commands until the CHOWN command - if CHOWN doesn't find something then you did something wrong.

Pictures attached.
 

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10.8.2 is better but they still occur. I believe it is a memory leak in the GPU usage - I can monitor mine using an application I run 24x7 (BOINC from BERKLEY) and it uses Open CL for GPU*processes. When I boot it reports 905M free on my GT 550M; after overnight running, screen saver comes in once and then the display sleeps for 8 hours, that number drops to 840M or so. This continues throughout the day until the memory drops so low I'll get messages (internal to BOINC) about how the process is waiting for GPU memory. If I do not reboot, it will eventually freeze trying to come out of a screen saver or back from display sleep with the Channel Timeout message.

My son's MacBookPro has a similar issue although his reboots after the error, not a freeze; my wife's MacBookPro freezes. My daughter's MacBook has not failed, as far as I know, and she NEVER reboots. My MacMini Server has freezes but they are really rare.

The point is these issues will eventually be addressed and are not unique to the 550TI; turning off the cutesy stuff like background changes will reduce the affect and rebooting once a day may 'eliminate' it for most of us altogether.

vczilla's fix works; I did it wrong before he posted his fix and had issues so if some of you are having issues, just clean it up and try again; ignore the error messages on commands until the CHOWN command - if CHOWN doesn't find something then you did something wrong.

Pictures attached.

Mobile GPUs usually have different memory controllers to conserve power, as I have not had any channel exceptions, or freezes for that matter, with my 550ti for the past few days.
 
10.8.2 everything works just fine for me. Nvidia gt 620. I could not install the new nvidia drivers (i had a fresh 10.8.2 installation). I installed just the kexts from the package with kext wizard. Be careful you must rebuild caches with kext wizard. Vczilla 's post says you don't have to rebuild caches for /system/library/extensions but this is ok only if you install using the nvidia installer. If you install the kexts with kext utility, kext helper etc YOU MUST rebuild caches and not only one time but every time you get an error from the terminal. Leave kext utility running and when you get an error in terminal, rebuild caches. Repeat the command and you should be ok! Everything works great. Thank you vczilla!
 
Then you'll have to install nvidia's pkg as usual, DO NOT reboot once it's done.

Sorry I think I'm missing something, what's this nvidia pkg that vczilla mentions?

I've just built a Hackintosh with a GA-Z77-DS3H and a GTX 660ti but I'm having wake from sleep issues.

Would really like to resolve this!

Thanks! =]
 
Sorry I think I'm missing something, what's this nvidia pkg that vczilla mentions?

I've just built a Hackintosh with a GA-Z77-DS3H and a GTX 660ti but I'm having wake from sleep issues.

Would really like to resolve this!

Thanks! =]
That driver is for Fermi cards only, since you have a Kepler card, you'll need to look elsewhere (try sleepenabler, DSDT edits, etc...).
Note: This thread is for Fermi users only
 
Mobile GPUs usually have different memory controllers to conserve power, as I have not had any channel exceptions, or freezes for that matter, with my 550ti for the past few days.

I've updated to 10.8.2 and applyed vczilla's solution. Had 2 screen freezes today.
What about supported Nvidia cards on real MacPros, do they freezes as well as our hackintosh? If so, why nvidia does not fixes this?

Thanks all for the advices

Alexandre
 
I've updated to 10.8.2 and applyed vczilla's solution. Had 2 screen freezes today.
What about supported Nvidia cards on real MacPros, do they freezes as well as our hackintosh? If so, why nvidia does not fixes this?

Thanks all for the advices

Alexandre

Because nVidia is waiting till we make the work for them and find a fix, and then they grab the Fix and release new drivers. Of course this happen always before apple releases the next new Update. This is my view of point!
 
It worked for my gt430. Thank you man.
Does the hdmi work? Mine is not working
 
That driver is for Fermi cards only, since you have a Kepler card, you'll need to look elsewhere (try sleepenabler, DSDT edits, etc...).
Note: This thread is for Fermi users only

Ok thanks a lot for that, I saw comments directing people with similar problems to this solution...really don't know what to do =S
 
That driver is for Fermi cards only, since you have a Kepler card, you'll need to look elsewhere (try sleepenabler, DSDT edits, etc...).
Note: This thread is for Fermi users only

I do not mean to be argumentative but the driver set includes all cards which is why I mentioned all of my machines ... it includes NDVANV50HAL.kext (2xx, 3xx cards), NVDAGF100HAL.kext (4xx, 5xx cards) and NVDAGK100HAL.kext (6xx cards) because all had to be relinked to use the 304... driver.

I do appreciate this is/was a 550TI thread but the issues are not 550TI specific; the new drivers have relieved all of my issues except the GPU-related (I believe) freeze - I can hot-plug my HDMI second display, sleep the displays and screen-save without issue after application of these drivers.
 
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