Hi! I am a slackware 14.1 user and until a few days ago I was able to use skype as a regular user, but now I can only run skype when I am logged in as root.
When I try to open skype in terminal as a regular user it displays nothing in return.
I have tryied to build and reinstall skype many times with the same resault.

ls -l /usr/bin/skype returns:
-rwxr-xr-x 1 root root 31208916 May 7 2013 /usr/bin/skype

file /usr/bin/skype returns:
/usr/bin/skype: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), BuildID[sha1]=b7a7d116316d2d3552ff798838a9bf4fc58d0cd5, stripped

and

ldd /usr/bin/skype

If anyone can help me I will be greatfull.

So what happened between when you were still able and when not?


What would that accomplish?


What does return when run as unprivileged user?

"So what happened between when you were still able and when not?"
I upgraded my mate desktop 1.6 packages (base and extra) from here: http://slackware.org.uk/msb/14.1/1.6/
..."What would that accomplish?" I don't know. I was hopping that will fix some errors. I guess not...


strace -o /tmp/strace.log -f -v /usr/bin/skype
As an unprivileged user returns absolutely nothig. It returns to the same line after a second with no log of any kind of error.
But the /tmp/strace.log looks like this:

22752 execve("/usr/bin/skype", ["/usr/bin/skype"], ["CPLUS_INCLUDE_PATH=/usr/lib/qt/i"..., "MATE_DESKTOP_SESSION_ID=this-is-"..., "MANPATH=/usr/local/man:/usr/man:"..., "HOSTNAME=daniel.example.net", "GPG_AGENT_INFO=/tmp/keyring-aA1Z"..., "TERM=xterm", "SHELL=/bin/bash", "XDG_SESSION_COOKIE=58e542b2b58ce"..., "WINDOWID=58726307", "MATE_KEYRING_CONTROL=/tmp/keyrin"..., "USER=daniel", "LS_COLORS=no=00:fi=00:di=01;34:l"..., "GDK_USE_XFT=1", "SSH_AUTH_SOCK=/tmp/keyring-aA1ZO"..., "SESSION_MANAGER=local/daniel:@/t"..., "T1LIB_CONFIG=/usr/share/t1lib/t1"..., "MINICOM=-c on", "PATH=/usr/local/bin:/usr/bin:/bi"..., "MAIL=/var/mail/daniel", "LC_COLLATE=C", "INPUTRC=/etc/inputrc", "PWD=/home/daniel", "LANG=en_US", "QT4DIR=/usr/lib/qt", "PS1=\\u@\\h:\\w\\$ ", "PS2=> ", "HOME=/home/daniel", "SHLVL=1", "LS_OPTIONS=-F -b -T 0 --color=au"..., "LESS=-M", "LOGNAME=daniel", "DBUS_SESSION_BUS_ADDRESS=unix:ab"..., "LESSOPEN=|lesspipe.sh %s", "PKG_CONFIG_PATH=/usr/local/lib/p"..., "DISPLAY=:0.0", "G_BROKEN_FILENAMES=1", "COLORTERM=mate-terminal", "XAUTHORITY=/home/daniel/.Xauthor"..., "_=/usr/bin/strace"]) = 0
22752 brk(0) = 0xb912b000
22752 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb5a48000
22752 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
22752 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
22752 fstat64(3, {st_dev=makedev(8, 9), st_ino=146434, st_mode=S_IFREG|0644, st_nlink=1, st_uid=0, st_gid=0, st_blksize=4096, st_blocks=328, st_size=167029, st_atime=2014/02/08-10:18:16, st_mtime=2014/02/08-10:18:16, st_ctime=2014/02/08-10:18:16}) = 0
22752 mmap2(NULL, 167029, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb5a1f000
22752 close(3) = 0
.....................................................................................
of course there are a lot of lines after the last one

THANKS A LOT MAN FOR YOUR COMMAND! I've searched /tmp/strace.log a litlle bit more and at the end of the file I've found this lines:

22752 open("/tmp/qtsingleapp-skype-f0e6-3e8-lockfile", O_RDWR|O_CREAT|O_LARGEFILE|O_CLOEXEC, 0666) = -1 EACCES (Permission denied)
22752 write(3, "\1\0\0\0\0\0\0\0", 8) = 8
22752 socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC, 0) = 8
22752 fcntl64(8, F_GETFL) = 0x2 (flags O_RDWR)
22752 fcntl64(8, F_SETFL, O_RDWR|O_NONBLOCK) = 0
22752 connect(8, {sa_family=AF_LOCAL, sun_path="/tmp/qtsingleapp-skype-f0e6-3e8"}, 110) = -1 EACCES (Permission denied)
22752 close(8) = 0
22752 nanosleep({0, 250000000}, NULL) = 0
22752 socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC, 0) = 8
22752 fcntl64(8, F_GETFL) = 0x2 (flags O_RDWR)
22752 fcntl64(8, F_SETFL, O_RDWR|O_NONBLOCK) = 0
22752 connect(8, {sa_family=AF_LOCAL, sun_path="/tmp/qtsingleapp-skype-f0e6-3e8"}, 110) = -1 EACCES (Permission denied)

So I changed the privileged permisions to the above files, and skype starts again as a regular user. This thread is solved thanks to you unSpawn

Heh, you're welcome.

I have a similar issue, mine runs but it will not log in. If I run it as root it does, and works fine. Running strace came up with no such permissions problems, so I believe I have a different issue.

ls -l /opt/bin/skype
-rwxr-xr-x 1 root audio 29383892 Mar 9 19:45 /opt/bin/skype

file /opt/bin/skype
/opt/bin/skype: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, BuildID[sha1]=0a814f59ffedc2201f68634e577e37cac04be150, stripped

ldd /opt/bin/skype
linux-gate.so.1 (0xffffe000)
libasound.so.2 => /usr/lib32/libasound.so.2 (0xf5a31000)
libXv.so.1 => /usr/lib32/libXv.so.1 (0xf5a2b000)
libXss.so.1 => /usr/lib32/libXss.so.1 (0xf5a27000)
librt.so.1 => /lib32/librt.so.1 (0xf5a1e000)
libdl.so.2 => /lib32/libdl.so.2 (0xf5a18000)
libX11.so.6 => /usr/lib32/libX11.so.6 (0xf58e2000)
libXext.so.6 => /usr/lib32/libXext.so.6 (0xf58d0000)
libQtDBus.so.4 => /usr/lib32/qt4/libQtDBus.so.4 (0xf5852000)
libQtWebKit.so.4 => /usr/lib32/qt4/libQtWebKit.so.4 (0xf411a000)
libQtXml.so.4 => /usr/lib32/qt4/libQtXml.so.4 (0xf40d9000)
libQtGui.so.4 => /usr/lib32/qt4/libQtGui.so.4 (0xf3640000)
libQtNetwork.so.4 => /usr/lib32/qt4/libQtNetwork.so.4 (0xf3506000)
libQtCore.so.4 => /usr/lib32/qt4/libQtCore.so.4 (0xf3227000)
libpthread.so.0 => /lib32/libpthread.so.0 (0xf320c000)
libstdc++.so.6 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/32/libstdc++.so.6 (0xf311f000)
libm.so.6 => /lib32/libm.so.6 (0xf30db000)
libgcc_s.so.1 => /usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/32/libgcc_s.so.1 (0xf30bf000)
libc.so.6 => /lib32/libc.so.6 (0xf2f12000)
/lib/ld-linux.so.2 (0xf5b4f000)
libxcb.so.1 => /usr/lib32/libxcb.so.1 (0xf2ef0000)
libdbus-1.so.3 => /usr/lib32/libdbus-1.so.3 (0xf2eaf000)
libsqlite3.so.0 => /usr/lib32/libsqlite3.so.0 (0xf2df8000)
libXrender.so.1 => /usr/lib32/libXrender.so.1 (0xf2ded000)
libgstapp-0.10.so.0 => /usr/lib32/libgstapp-0.10.so.0 (0xf2de0000)
libgstinterfaces-0.10.so.0 => /usr/lib32/libgstinterfaces-0.10.so.0 (0xf2dce000)
libgstpbutils-0.10.so.0 => /usr/lib32/libgstpbutils-0.10.so.0 (0xf2dac000)
libgstvideo-0.10.so.0 => /usr/lib32/libgstvideo-0.10.so.0 (0xf2d94000)
libgstbase-0.10.so.0 => /usr/lib32/libgstbase-0.10.so.0 (0xf2d33000)
libgstreamer-0.10.so.0 => /usr/lib32/libgstreamer-0.10.so.0 (0xf2c4c000)
libgobject-2.0.so.0 => /usr/lib32/libgobject-2.0.so.0 (0xf2bfe000)
libglib-2.0.so.0 => /usr/lib32/libglib-2.0.so.0 (0xf2ad9000)
libpng15.so.15 => /usr/lib32/libpng15.so.15 (0xf2aa8000)
libz.so.1 => /lib32/libz.so.1 (0xf2a91000)
libfreetype.so.6 => /usr/lib32/libfreetype.so.6 (0xf29f6000)
libSM.so.6 => /usr/lib32/libSM.so.6 (0xf29ed000)
libICE.so.6 => /usr/lib32/libICE.so.6 (0xf29d3000)
libXi.so.6 => /usr/lib32/libXi.so.6 (0xf29c2000)
libXrandr.so.2 => /usr/lib32/libXrandr.so.2 (0xf29b6000)
libXfixes.so.3 => /usr/lib32/libXfixes.so.3 (0xf29b0000)
libXcursor.so.1 => /usr/lib32/libXcursor.so.1 (0xf29a5000)
libXinerama.so.1 => /usr/lib32/libXinerama.so.1 (0xf29a1000)
libfontconfig.so.1 => /usr/lib32/libfontconfig.so.1 (0xf2967000)
libssl.so.1.0.0 => /usr/lib32/libssl.so.1.0.0 (0xf2904000)
libcrypto.so.1.0.0 => /usr/lib32/libcrypto.so.1.0.0 (0xf2778000)
libXau.so.6 => /usr/lib32/libXau.so.6 (0xf2774000)
libXdmcp.so.6 => /usr/lib32/libXdmcp.so.6 (0xf276d000)
libgmodule-2.0.so.0 => /usr/lib32/libgmodule-2.0.so.0 (0xf2768000)
libgthread-2.0.so.0 => /usr/lib32/libgthread-2.0.so.0 (0xf2764000)
libxml2.so.2 => /usr/lib32/libxml2.so.2 (0xf2610000)
libffi.so.6 => /usr/lib32/libffi.so.6 (0xf2608000)
libbz2.so.1 => /lib32/libbz2.so.1 (0xf25f7000)
libuuid.so.1 => /lib32/libuuid.so.1 (0xf25f0000)
libexpat.so.1 => /usr/lib32/libexpat.so.1 (0xf25c8000)
libkrb5.so.3 => /usr/lib32/libkrb5.so.3 (0xf250a000)
libk5crypto.so.3 => /usr/lib32/libk5crypto.so.3 (0xf24d6000)
libcom_err.so.2 => /lib32/libcom_err.so.2 (0xf24d0000)
libkrb5support.so.0 => /usr/lib32/libkrb5support.so.0 (0xf24c4000)
libkeyutils.so.1 => /lib32/libkeyutils.so.1 (0xf24c0000)
libresolv.so.2 => /lib32/libresolv.so.2 (0xf24a8000)

@Silent-Hunter The problem surelly can be found in your strace log file. That file should contain every stage in your skype linear execution, so at the end of the file, it must be the reason why skype can not be executed anymore.
Therefore strace log file (/tmp/strace.log) from this command: "strace -o /tmp/strace.log -f -v /usr/bin/skype" is important for debugging.