Does the arch steam runtime workaround help? (https://wiki.archlinux.org/index.php/Steam#Steam_runtime_issues)
The arch workaround did nothing at all, exact same issue with the exact same backtrace.
Interestingly enough, I randomly got a first launch dialog when testing. Instantly crashed when choosing to log in to an existing account.
Luckily I was running Steam under a debugger so I got a backtrace from it, if it's of any help.
[0904/161544:ERROR:renderer_main.cc(200)] Running without renderer sandbox
[0904/161544:ERROR:renderer_main.cc(200)] Running without renderer sandbox
Generating new string page texture 12: 48x256, total string texture memory is 49.15 KB
Generating new string page texture 13: 256x256, total string texture memory is 311.30 KB
Generating new string page texture 14: 128x256, total string texture memory is 442.37 KB
Steam: An X Error occurred
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 18 (X_ChangeProperty)
Value in failed request: 0x0
Serial number of failed request: 777
Program received signal SIGTRAP, Trace/breakpoint trap.
0xf2453898 in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/vgui2_s.so
(gdb) bt
#0 0xf2453898 in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/vgui2_s.so
#1 0xf7edba2b in _XError () from /home/ace/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libX11.so.6
#2 0xf7ed882d in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libX11.so.6
#3 0xf7ed8887 in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libX11.so.6
#4 0xf7ed9750 in _XReply () from /home/ace/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libX11.so.6
#5 0xf7ebeaa8 in XGetWindowProperty () from /home/ace/.local/share/Steam/ubuntu12_32/steam-runtime/i386/usr/lib/i386-linux-gnu/libX11.so.6
#6 0xf245327f in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/vgui2_s.so
#7 0xf4b882f1 in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/steamui.so
#8 0xf471e8f0 in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/steamui.so
#9 0xf474faae in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/steamui.so
[#10](/issue/ValveSoftware/steam-for-linux/10) 0xf4763f8f in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/steamui.so
[#11](/issue/ValveSoftware/steam-for-linux/11) 0xf47651d2 in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/steamui.so
[#12](/issue/ValveSoftware/steam-for-linux/12) 0xf46f680d in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/steamui.so
[#13](/issue/ValveSoftware/steam-for-linux/13) 0xf46f769e in ?? () from /home/ace/.local/share/Steam/ubuntu12_32/steamui.so
[#14](/issue/ValveSoftware/steam-for-linux/14) 0x56597110 in RunSteam(int, char**, bool) ()
[#15](/issue/ValveSoftware/steam-for-linux/15) 0x5657e09e in ?? ()
[#16](/issue/ValveSoftware/steam-for-linux/16) 0xf7b62f66 in __libc_start_main () from /lib32/libc.so.6
[#17](/issue/ValveSoftware/steam-for-linux/17) 0x56580e25 in _start ()
I'm going to close this as stale, unable to reproduce it as the harddrive died any my new install has not had a single Steam segfault in three months
Nothing extracted yet.
Today after restarting my computer Steam has started segfaulting on launch, I tried completely removing all steam files and letting it reinstall without any difference.
I also tried running it with a debugger but that didn't give much useful information either
Running latest Sabayonlinux 64-bit, with Intel HD Graphics 4400 if that is of any help.