Created attachment 71512 [details] Kernel message for the crash In Optimus system if the Nvidia card is powered off and X is restarted kernel crashes. Info: Distribution: Gentoo x86_64, stable up to date. Kernel: Gentoo 3.7 System: Acer Aspire 5742G (RAM 8G ,CPU Intel Core i5 480M, nVidia GT540 with 1G RAM, latest BIOS v1.30) In the kernel messages when the nouveu driver is loaded it reports that the nVidia card is with 512MB of ram. I can provide full dmesg if needed.
FYI http://lists.freedesktop.org/archives/nouveau/2012-November/011459.html http://lists.freedesktop.org/archives/nouveau/2012-November/011476.html
Thank you. Then I suppose there is already anoter bug or something. If this is the case this one can be closed.
No, there's no other open bug report for this. It's better to keep this one open as long as it's not fixed upstream.
Ok, I can provide any additional information needed.
I had the exact same crash today. After disabling my vga card, and shutdown I got the following trace: http://ubuntu.dupondje.be/20121225_114737.jpg
This is still present in 3.8-rc1.
Can you confirm that this issue still exists in the latest kernel (3.11-rc7)? A bunch of locking/ordering stuff has been redone since 3.8, I think.
(In reply to comment #7) > Can you confirm that this issue still exists in the latest kernel > (3.11-rc7)? A bunch of locking/ordering stuff has been redone since 3.8, I > think. I just tested with 3.11 and I can can confirm that suspend/resume works, however still crashes on shut down/reboot.
Can you supply a full kernel log that includes the backtrace from 3.11? You can probably trigger the issue by unloading the nouveau module -- see how to do this at http://nouveau.freedesktop.org/wiki/KernelModeSetting/ (you can't just rmmod it, you have to unbind the console first)
Ok, I had some time to try 3.12... it's even worse, kernel crashesh short time after loading nouveau module. Starting X completely locks the system.
Is this still an issue in 3.13.x or later? The runpm stuff should be there and working, with the card automatically powering off when not in use.
Hello, I can't confirm, I don't use this laptop anymore
Didn't had the crash anymore the last months. So seems to be fine now indeed.
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