CUDA install error


I have the new GTX 750Ti graphics card.
The new driver for it seems to be working;

My kernel is low latency :
Linux 3.11.0-17-lowlatency #11-Ubuntu SMP PREEMPT Fri Feb 7 00:51:05 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Trying to perform a silent install of the cuda driver and I get a compile error I’m not sure how to work around. cuda version -

Any suggestions on what to do? thanks

include/linux/cpumask.h: In function ‘cpumask_parse’:
   include/linux/cpumask.h:603:26: warning: signed and unsigned type in conditional expression [-Wsign-compare]
     int len = nl ? nl - buf : strlen(buf);
   In file included from include/uapi/linux/stddef.h:1:0,
                    from include/linux/stddef.h:4,
                    from /usr/src/linux-headers-3.11.0-17-lowlatency/include/uapi/linux/posix_types.h:4,
                    from include/uapi/linux/types.h:13,
                    from include/linux/types.h:5,
                    from include/uapi/linux/capability.h:16,
                    from include/linux/capability.h:15,
                    from include/linux/sched.h:13,
                    from include/linux/utsname.h:5,
                    from /tmp/selfgz6497/NVIDIA-Linux-x86_64-319.37/kernel/nv-linux.h:44,
                    from /tmp/selfgz6497/NVIDIA-Linux-x86_64-319.37/kernel/nv-i2c.c:15:
   /usr/src/linux-headers-3.11.0-17-lowlatency/arch/x86/include/asm/uaccess_64.h: In function ‘copy_from_user’:
   /usr/src/linux-headers-3.11.0-17-lowlatency/arch/x86/include/asm/uaccess_64.h:62:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (likely(sz == -1 || sz >= n))
   include/linux/compiler.h:152:40: note: in definition of macro ‘likely’
    # define likely(x) __builtin_expect(!!(x), 1)
   /tmp/selfgz6497/NVIDIA-Linux-x86_64-319.37/kernel/nv-i2c.c: In function ‘nv_i2c_del_adapter’:
   /tmp/selfgz6497/NVIDIA-Linux-x86_64-319.37/kernel/nv-i2c.c:327:14: error: void value not ignored as it ought to be
        osstatus = i2c_del_adapter(pI2cAdapter);
   make[3]: *** [/tmp/selfgz6497/NVIDIA-Linux-x86_64-319.37/kernel/nv-i2c.o] Error 1
   make[2]: *** [_module_/tmp/selfgz6497/NVIDIA-Linux-x86_64-319.37/kernel] Error 2
   nvidia.ko failed to build!
   make[1]: *** [module] Error 1
   make: *** [module] Error 2
-> Error.
ERROR: Unable to build the NVIDIA kernel module.
ERROR: Installation has failed.  Please see the file '/var/log/nvidia-installer.log' for details.  You may find suggestions on fixing installation problems in the README available on the Linux driver download page at

A CUDA install has 3 parts: driver, toolkit, and samples. You’ve already installed the 331.49 driver for your GTX 750 Ti. So when installing the CUDA 5.5 toolkit, select “no” when prompted to install the (319.37) driver. You may need to re-install the 331.49 driver as well.