Yes, same line when I try as root:
openat(AT_FDCWD, "/dev/nvidia0", O_RDWR) = -1 EACCES (Permission denied)
Here the full strace as root:
execve("/usr/bin/nvidia-smi", ["nvidia-smi"], 0x7fffe172dda8 /* 21 vars */) = 0
brk(NULL) = 0x102e000
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=23230, ...}) = 0
mmap(NULL, 23230, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f24d63be000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000b\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=144976, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f24d63bc000
mmap(NULL, 2221184, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f24d5f7e000
mprotect(0x7f24d5f98000, 2093056, PROT_NONE) = 0
mmap(0x7f24d6197000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19000) = 0x7f24d6197000
mmap(0x7f24d6199000, 13440, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f24d6199000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\16\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=14560, ...}) = 0
mmap(NULL, 2109712, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f24d5d7a000
mprotect(0x7f24d5d7d000, 2093056, PROT_NONE) = 0
mmap(0x7f24d5f7c000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f24d5f7c000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260\34\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=2030544, ...}) = 0
mmap(NULL, 4131552, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f24d5989000
mprotect(0x7f24d5b70000, 2097152, PROT_NONE) = 0
mmap(0x7f24d5d70000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e7000) = 0x7f24d5d70000
mmap(0x7f24d5d76000, 15072, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f24d5d76000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\"\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=31680, ...}) = 0
mmap(NULL, 2128864, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f24d5781000
mprotect(0x7f24d5788000, 2093056, PROT_NONE) = 0
mmap(0x7f24d5987000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f24d5987000
close(3) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f24d63ba000
arch_prctl(ARCH_SET_FS, 0x7f24d63bab80) = 0
mprotect(0x7f24d5d70000, 16384, PROT_READ) = 0
mprotect(0x7f24d6197000, 4096, PROT_READ) = 0
mprotect(0x7f24d5987000, 4096, PROT_READ) = 0
mprotect(0x7f24d5f7c000, 4096, PROT_READ) = 0
mprotect(0x7f24d63c4000, 4096, PROT_READ) = 0
munmap(0x7f24d63be000, 23230) = 0
set_tid_address(0x7f24d63bae50) = 430
set_robust_list(0x7f24d63bae60, 24) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f24d5f83cb0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f24d5f90890}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f24d5f83d50, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f24d5f90890}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
futex(0x7f24d5f7d0c8, FUTEX_WAKE_PRIVATE, 2147483647) = 0
brk(NULL) = 0x102e000
brk(0x104f000) = 0x104f000
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=23230, ...}) = 0
mmap(NULL, 23230, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f24d63be000
close(3) = 0
access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/libnvidia-ml.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\355\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=1528376, ...}) = 0
mmap(NULL, 6352680, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f24d5172000
mprotect(0x7f24d52d1000, 2093056, PROT_NONE) = 0
mmap(0x7f24d54d0000, 94208, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15e000) = 0x7f24d54d0000
mmap(0x7f24d54e7000, 2727720, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f24d54e7000
close(3) = 0
munmap(0x7f24d63be000, 23230) = 0
getpid() = 430
openat(AT_FDCWD, "/proc/modules", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, "unix_diag 16384 0 - Live 0x00000"..., 1024) = 1024
read(3, "0000000000000000\nmac80211 815104"..., 1024) = 1024
read(3, ", Live 0x0000000000000000\nbtrtl "..., 1024) = 1024
read(3, "idia_uvm 798720 0 - Live 0x00000"..., 1024) = 1024
read(3, "0000000\nnf_log_common 16384 2 nf"..., 1024) = 1024
read(3, "ntrack_ftp, Live 0x0000000000000"..., 1024) = 1024
read(3, " 77824 2 zfs,zcommon, Live 0x000"..., 1024) = 1024
close(3) = 0
openat(AT_FDCWD, "/proc/driver/nvidia/params", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=649, ...}) = 0
read(3, "Mobile: 4294967295\nResmanDebugLe"..., 4096) = 649
close(3) = 0
openat(AT_FDCWD, "/dev/nvidiactl", O_RDWR) = 3
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0xd2, 0x48), 0x7ffd734dc400) = 0
openat(AT_FDCWD, "/sys/devices/system/memory/block_size_bytes", O_RDONLY) = 4
read(4, "8000000\n", 99) = 8
close(4) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0xd6, 0x8), 0x7ffd734dc500) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0xca, 0x4), 0x7f24d577fcc0) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0xc8, 0xa00), 0x7f24d577fd20) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x2b, 0x20), 0x7ffd734dc520) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x2a, 0x20), 0x7ffd734dc500) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x2a, 0x20), 0x7ffd734dc500) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x2a, 0x20), 0x7ffd734dc500) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x2a, 0x20), 0x7ffd734dc500) = 0
openat(AT_FDCWD, "/proc/driver/nvidia/params", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0444, st_size=649, ...}) = 0
read(4, "Mobile: 4294967295\nResmanDebugLe"..., 4096) = 649
close(4) = 0
openat(AT_FDCWD, "/dev/nvidia0", O_RDWR) = -1 EACCES (Permission denied)
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x2a, 0x20), 0x7ffd734dc500) = 0
getpid() = 430
fstat(1, {st_mode=S_IFREG|0644, st_size=7524, ...}) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x2a, 0x20), 0x7ffd734deb50) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x29, 0x10), 0x7ffd734deb80) = 0
close(3) = 0
write(1, "No devices were found\n", 22No devices were found
) = 22
exit_group(6) = ?
+++ exited with 6 +++