[Spike]

Hi Everyone,

My system just started freezing - the screen is all corrupted. There is no way to recover from this other than a reboot. The system log reports the following error:

NVDA(OpenGL): Channel exception! status = 0xffff info32 = 0x8 = Fifo: Watchdog Timeout Error

I did some "Googling" looking for results and there are several hits, but there does not appear to be a definitive solution. Has anyone else encountered the same error.

Many thanks in advance.

Regards

Spike

EDIT #1

It seems that many regular Mac users are seeing the same error.
http://discussions.apple.com/thread....16253&tstart=0

EDIT #2

Just further to this....on September 24th. I installed a GeForce Mac OS X Driver Release 18.5.2 - things have been solid ever since.

EDIT #3

October 13th. Everything still stable - no reboots.

EDIT #4

October 24th. Still stable

[guidorosso]

Apologies for re-surfacing an old thread, but I am getting the same exact error. I cannot install the driver that you recommended as it says "No Driver Update Needed. This system already has drivers which support this NVIDIA graphics solution".

I'm curious if you ever ran into the issue again? I'm running 10.6.2.

[Spike]

Hi Guido,

It sounds like you ran the software updater or allowed the website to make the decision for you, whereas I just downloaded the whole package and installed it. I never ran into the issue again, the whole system has been solid as a rock since then (except when someone tries tweaking things !! ).

Hope it helps

Regards

Spike

[guidorosso]

Hi Spike,
Nope I actually ran the dmg from nvidia's site. This is the exact file: http://www.nvidia.com/object/GeForce...18.5.2f16.html

I started getting this error once I enabled Speedstepping in my DSDT. I'm now running an older DSDT without the processor stepping states and without an LPC fix, which was required to get speedstepping working. Haven't had any issues yet, but I've only been running for about 4 hours now. I'll post results as more time passes, hopefully without further crashes!

Edit: Meant to say I ran the .mpkg file on the dmg.

[Spike]

Hi Guido,

Well I cannot say that the installation of the driver was the definitive solution, but things did settle down after that (and I made no other changes at the time) and things have been great ever since. When I looked at the Mac sites WRT this issue people were finding solutions that seemed unrelated to the video, but who knows how these things communicate at each and every level. I just checked my system.log again and there is nothing showing up there.

Regards

Spike