1 Reply Latest reply on Jun 5, 2015 9:51 AM by nou

    Installing fglrx-core_15.101-0ubuntu1_amd64


      Hi All,


      I am trying to install the AMD Catalyst driver v15.5 available at


      As the site describes, it is a AMD Catalyst™ 15.5 Proprietary Ubuntu 14.04 x86_64 Minimal Video Driver for Graphics Accelerators (Non-X Support)

      As I want to setup OpenCL configuration without X Server installation on a Ubuntu.

      when I run the command $dpkg -i Installing fglrx-core_15.101-0ubuntu1_amd64

      It saves this error in the error log.


      DKMS make.log for fglrx-core-15.101 for kernel 4.0.0 (x86_64)

      Thu Jun  4 13:32:23 IST 2015

      /usr/sbin/dkms: line 73: cd: /var/lib/dkms/fglrx/15.101/build: No such file or directory

      AMD kernel module generator version 2.1

      doing Makefile based build for kernel 2.6.x and higher

      rm -rf *.c *.h *.o *.ko *.a .??* *.symvers

      make -C /lib/modules/4.0.0/build SUBDIRS=/var/lib/dkms/fglrx-core/15.101/build/2.6.x modules

      make[1]: Entering directory `/root/Code/build_linux-4.0'

        CC [M]  /var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.o

      /var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.c: In function ‘kcl_mem_pat_setup’:

      /var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.c:4471:9: error: implicit declaration of function ‘read_cr4’ [-Werror=implicit-function-declaration]

               cr4 = read_cr4();


      /var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.c:4472:9: error: implicit declaration of function ‘write_cr4’ [-Werror=implicit-function-declaration]

               write_cr4(cr4 & ~X86_CR4_PGE);


      /var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.c: In function ‘kasSetExecutionLevel’:

      /var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.c:4819:5: error: implicit declaration of function ‘__get_cpu_var’ [-Werror=implicit-function-declaration]

           orig_level = __get_cpu_var(kasExecutionLevel);


      /var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.c:4820:38: error: lvalue required as left operand of assignment

           __get_cpu_var(kasExecutionLevel) = level;


      /var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.c: At top level:

      /var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.c:6396:12: warning: ‘KCL_fpu_save_init’ defined but not used [-Wunused-function]

      static int KCL_fpu_save_init(struct task_struct *tsk)


      cc1: some warnings being treated as errors

      make[4]: *** [/var/lib/dkms/fglrx-core/15.101/build/2.6.x/firegl_public.o] Error 1

      make[3]: *** [_module_/var/lib/dkms/fglrx-core/15.101/build/2.6.x] Error 2

      make[2]: *** [sub-make] Error 2

      make[1]: *** [__sub-make] Error 2

      make[1]: Leaving directory `/root/Code/build_linux-4.0'

      make: *** [kmod_build] Error 2

      build failed with return value 2



      Kindly help me fix the error and get the driver running.