Issue report : TF2 Crashes while changing level in MvM

[Chichi]

I had two games in MvM boot camp mode and when the server was changing level for the third game I had a time out then a crash.

Here is the log:

Game update: AppID 440 "Team Fortress 2", ProcID 4890, IP 91.215.159.133:27055
The program 'hl2_linux' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
(Details: serial 42547 error_code 3 request_code 42 minor_code 0)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the --sync command line
option to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)
Game removed: AppID 440 "Team Fortress 2", ProcID 4890
/home/chiheb/Steam/SteamApps/ckaibi/Team Fortress 2/hl2.sh: line 72: 4890 Killed ${GAME_DEBUGGER} "${GAMEROOT}"/${GAMEEXE} "$@"
saving roaming config store to 'sharedconfig.vdf'
roaming config store 2 saved successfully
Inconsistency detected by ld.so: dl-close.c: 759: _dl_close: Assertion `map->l_init_called' failed!


My config:

Processor Information:
Vendor: AuthenticAMD
Speed: 3000 Mhz
4 logical processors
4 physical processors
HyperThreading: Unsupported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Supported
SSE41: Unsupported
SSE42: Unsupported

Network Information:
Network Speed:

Operating System Version:
Ubuntu 12.04.2 LTS (64 bit)
Kernel Name: Linux
Kernel Version: 3.2.0-37-generic
X Server vendor: The X.Org Foundation
X Server release: 11103000

Video Card:
Driver: ATI Technologies Inc. AMD Radeon HD 6800 Series

Driver Version: 4.2.12002 Compatibility Profile Context 9.01.8
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 59 Hz
VendorID: 0x1002
DeviceID: 0x6739
Number of Monitors: 1
Number of Logical Video Cards: 1
Primary Display Resolution: 1680 x 1050
Desktop Resolution: 1680 x 1050
Primary Display Size: 18.62" x 11.65" (21.93" diag)
47.3cm x 29.6cm (55.7cm diag)
Primary VRAM Not Detected

Sound card:
Audio device: Realtek ALC892

Memory:
RAM: 3952 Mb

Miscellaneous:
UI Language: English
LANG: en_US.UTF-8
Microphone: Not set
Total Hard Disk Space Available: 213710 Mb
Largest Free Hard Disk Block: 2370 Mb

Installed software:

Recent Failure Reports:

[stovetop popcorn]

Different hardware, but same problem for me: Crash on map end.