I am trying to install the driver for ubuntu as per these instructions:
https://support.displaylink.com/know...rticles/684649
but when the EVDI kernel module is building it fails
Configuring EVDI DKMS module
Registering EVDI kernel module with DKMS
Building EVDI kernel module with DKMS
ERROR (code 3): Failed to build evdi/4.4.24. Consult /var/lib/dkms/evdi/4.4.24/build/make.log for details..
so I checked the output of make.log for details:
Code:
DKMS make.log for evdi-4.4.24 for kernel 4.20.8-042008-generic (x86_64)
Do Feb 14 13:27:57 CET 2019
make KBUILD_VERBOSE=1 SUBDIRS=/var/lib/dkms/evdi/4.4.24/build SRCROOT=/var/lib/dkms/evdi/4.4.24/build CONFIG_MODULE_SIG= -C /lib/modules/4.20.8-042008-generic/build modules
make[1]: Entering directory '/usr/src/linux-headers-4.20.8-042008-generic'
test -e include/generated/autoconf.h -a -e include/config/auto.conf || ( \
echo >&2; \
echo >&2 " ERROR: Kernel configuration is invalid."; \
echo >&2 " include/generated/autoconf.h or include/config/auto.conf are missing.";\
echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \
echo >&2 ; \
/bin/false)
....
.attach = evdi_attach_dma_buf,
^~~~~~~~~~~~~~~~~~~
/var/lib/dkms/evdi/4.4.24/build/evdi_gem.c:471:12: note: (near initialization for ‘evdi_dmabuf_ops.attach’)
/var/lib/dkms/evdi/4.4.24/build/evdi_gem.c:482:3: error: ‘struct dma_buf_ops’ has no member named ‘map_atomic’
.map_atomic = evdi_dmabuf_kmap_atomic,
^~~~~~~~~~
/var/lib/dkms/evdi/4.4.24/build/evdi_gem.c:482:16: error: initialization of ‘void (*)(struct dma_buf *, long unsigned int, void *)’ from incompatible pointer type ‘void * (*)(struct dma_buf *, long unsigned int)’ [-Werror=incompatible-pointer-types]
.map_atomic = evdi_dmabuf_kmap_atomic,
^~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/evdi/4.4.24/build/evdi_gem.c:482:16: note: (near initialization for ‘evdi_dmabuf_ops.unmap’)
/var/lib/dkms/evdi/4.4.24/build/evdi_gem.c:484:3: error: ‘struct dma_buf_ops’ has no member named ‘unmap_atomic’
.unmap_atomic = evdi_dmabuf_kunmap_atomic,
^~~~~~~~~~~~
/var/lib/dkms/evdi/4.4.24/build/evdi_gem.c:484:18: error: initialization of ‘int (*)(struct dma_buf *, struct vm_area_struct *)’ from incompatible pointer type ‘void (*)(struct dma_buf *, long unsigned int, void *)’ [-Werror=incompatible-pointer-types]
.unmap_atomic = evdi_dmabuf_kunmap_atomic,
^~~~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/evdi/4.4.24/build/evdi_gem.c:484:18: note: (near initialization for ‘evdi_dmabuf_ops.mmap’)
gcc -Wp,-MD,/var/lib/dkms/evdi/4.4.24/build/.evdi_params.o.d -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/8/include -I./arch/x86/include -I./arch/x86/include/generated -I./include -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -Werror-implicit-function-declaration -Wno-format-security -std=gnu89 -fno-PIE -DCC_HAVE_ASM_GOTO -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mskip-rax-setup -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -DCONFIG_X86_X32_ABI -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_FXSAVEQ=1 -DCONFIG_AS_SSSE3=1 -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 -DCONFIG_AS_AVX512=1 -DCONFIG_AS_SHA1_NI=1 -DCONFIG_AS_SHA256_NI=1 -Wno-sign-compare -fno-asynchronous-unwind-tables -mindirect-branch=thunk-extern -mindirect-branch-register -fno-delete-null-pointer-checks -Wno-frame-address -Wno-format-truncation -Wno-format-overflow -Wno-int-in-bool-context -O2 --param=allow-store-data-races=0 -Wframe-larger-than=1024 -fstack-protector-strong -Wno-unused-but-set-variable -Wno-unused-const-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -fno-var-tracking-assignments -pg -mrecord-mcount -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -Wno-stringop-truncation -fno-strict-overflow -fno-merge-all-constants -fmerge-constants -fno-stack-check -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes -Werror=date-time -Werror=incompatible-pointer-types -Werror=designated-init -fmacro-prefix-map=./= -Wno-packed-not-aligned -Iinclude/drm -DMODULE -DKBUILD_BASENAME='"evdi_params"' -DKBUILD_MODNAME='"evdi"' -c -o /var/lib/dkms/evdi/4.4.24/build/evdi_params.o /var/lib/dkms/evdi/4.4.24/build/evdi_params.c
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:291: /var/lib/dkms/evdi/4.4.24/build/evdi_gem.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/var/lib/dkms/evdi/4.4.24/build/evdi_fb.c: In function ‘evdifb_create’:
/var/lib/dkms/evdi/4.4.24/build/evdi_fb.c:370:33: error: ‘FBINFO_CAN_FORCE_OUTPUT’ undeclared (first use in this function)
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
^~~~~~~~~~~~~~~~~~~~~~~
/var/lib/dkms/evdi/4.4.24/build/evdi_fb.c:370:33: note: each undeclared identifier is reported only once for each function it appears in
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:291: /var/lib/dkms/evdi/4.4.24/build/evdi_connector.o] Error 1
make[2]: *** [scripts/Makefile.build:291: /var/lib/dkms/evdi/4.4.24/build/evdi_fb.o] Error 1
make[1]: *** [Makefile:1562: _module_/var/lib/dkms/evdi/4.4.24/build] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.20.8-042008-generic'
make: *** [Makefile:22: all] Error 2
and i honestly dont even know where to begin . . .