Please use chimera's Report a Bug dialog to submit this bug. It will tell me more about your system and what graphics driver you have installed so I will have a better chance of reproducing the bug. That said, I see that the backtrace says that /usr/lib/nvidia/libGL.so.1 was involved. That file is not part of the NVidia driver from www.nvidia.com, so I'm guessing you must have the open source version. If you switch to NVidia's version, then it should work. But before you switch, please submit the bug report so I'll know which driver is buggy. If you are stuck with the current graphics driver, you can workaround the bug by starting chimera with the --debug-opengl option and disabling Pbuffers. Thank you and good luck, Greg On Mon, 8 Jun 2009, Bala subramanian wrote:

Friends,

I installed chimera 1.4 ( build 27677) build in Fedora 10. The installation was successful but when i run chimera, chimera opens with the following message.

ERROR: ld.so: object 'libGL.so' from LD_PRELOAD cannot be preloaded: ignored. ERROR: ld.so: object 'libGL.so' from LD_PRELOAD cannot be preloaded: ignored.

In addition, when i try to capture a high resolution image (300 dpi), chimera closed itself with following message.

X Error of failed request: GLXBadPbuffer Major opcode of failed request: 143 (GLX) Minor opcode of failed request: 28 (X_GLXDestroyPbuffer) Serial number of failed request: 75435 Current serial number in output stream: 75437 Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x19e767] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x19e90e] #2 /usr/lib/libX11.so.6 [0xb690e9] #3 /usr/lib/nvidia/libGL.so.1 [0x6536ffd]

Kindly write me what is going wrong.

Thanks, Bala