On 05/01/2014 12:32 PM, Fred Smith wrote: > Just discovered these messages in /var/log/messages, while looking at > the USB problem I just posted about, separately. > > Apr 27 20:23:16 fcshome kernel: NVRM: API mismatch: the client has the version 331.67, but > Apr 27 20:23:16 fcshome kernel: NVRM: this kernel module has the version 331.49. Please > Apr 27 20:23:16 fcshome kernel: NVRM: make sure that this kernel module and all NVIDIA driver > Apr 27 20:23:16 fcshome kernel: NVRM: components have the same version. > Apr 27 20:23:16 fcshome kernel: NVRM: nvidia_frontend_ioctl: minor 255, module->ioctl failed, error -22 > Apr 29 19:22:30 fcshome kernel: NVRM: API mismatch: the client has the version 331.67, but > Apr 29 19:22:30 fcshome kernel: NVRM: this kernel module has the version 331.49. Please > Apr 29 19:22:30 fcshome kernel: NVRM: make sure that this kernel module and all NVIDIA driver > > but I cannot find anything relating to Nvidia that has a 331.49 version number. > "yum list installed | grep 331.49" returns no hits > "yum list installed | grep 331.[0-9]" returns ONLY hits on 331.67. > "find 331" finds lots of things, but none of them is 331.49. > > So, I'd be appreciative if someone could shine a light on this for me. > > thanks! > You updated the NVIDIA driver/kernel module while the old one was loaded into the kernel. As root: # telinit 3 # rmmod nvidia # telinit 5 - Thomas