Created attachment 83961 [details] output of lspci -v I own an laptop with the intel-nvidia-optimus technolgie. Generating my own kernel from git.kernel.org, I have to blacklist the nouveau module. Otherwise the power is switched off, when the module is loaded. As this happens before anything is writen to the disk, I don't know how to provide any information of the crash. The laptop is a Fujitsu Lifebook N532. It worked using kernel 3.6. Attached is the output of lspci -v. Reinhard
Using newest kernel from git (1e207eb1c3f0e8b690401f02fe08e7b53903f010), the problem is gone. The bug should be closed. Reinhard