I'm not using vnc--just putty ssh. This is my first time using qdec at all. I have no problem using tkmedit through putty ssh. I can try it from the actual machine later today and see if it works, so I will know if this is what's causing the problem.

At 10:21 AM 7/14/2009, Bruce Fischl wrote:

Hi Dana,

are you using vnc or nomachine or something? Have you used qdec in this way before?

Bruce On Tue, 14 Jul 2009, Dana W. Moore wrote:

...

Hi everyone,

I am trying to use qdec for the first time, and I get the following error message:

X Error of failed request: GLXBadRenderRequest Major opcode of failed request: 132 (GLX) Minor opcode of failed request: 1 (X_GLXRender) Serial number of failed request: 1705 Current serial number in output stream: 1709 Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x4455a767] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x4455a81e] #2 /usr/lib/libX11.so.6 [0x4033d518] #3 /usr/lib/libX11.so.6(XESetCloseDisplay+0x31) [0x403208d1] #4 /usr/lib/libGL.so.1 [0x40291b69]

I am accessing our linux computer remotely using ssh from a windows machine--I don't know if this is related to the problem.

Thanks, Dana

Dana W. Moore, Ph.D. Neuropsychology Fellow Cornell Neuropsychology Service Weill Medical College of Cornell University New York Presbyterian Hospital Department of Neurology & Neuroscience 428 East 72nd Street, Suite 500 New York, NY 10021 Phone: 212-746-2441 Fax: 212-746-5584 Email: dwm2003@med.cornell.edu

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Dana W. Moore, Ph.D. Neuropsychology Fellow Cornell Neuropsychology Service Weill Medical College of Cornell University New York Presbyterian Hospital Department of Neurology & Neuroscience 428 East 72nd Street, Suite 500 New York, NY 10021 Phone: 212-746-2441 Fax: 212-746-5584 Email: dwm2003@med.cornell.edu

You need an X Server (http://www.straightrunning.com/XmingNotes/) -> I think this one is free However, X Server are usually very slow! ----------------------------------------------------------- Pedro Paulo de M. Oliveira Junior CIO Latam Netfilter & SpeedComm Telecom --- New Netfilter 3.0 www.Netfilter.com.br --- Coming Soon Netfilter Small Business

2009/7/14 Bruce Fischl fischl@nmr.mgh.harvard.edu

Hi Dana,

you need something to support the graphics (a local x server). putty ssh from windows by itself has no graphics.

Bruce On Tue, 14 Jul 2009, Dana W. Moore wrote:

I'm not using vnc--just putty ssh. This is my first time using qdec at

...

all. I have no problem using tkmedit through putty ssh. I can try it from the actual machine later today and see if it works, so I will know if this is what's causing the problem.

At 10:21 AM 7/14/2009, Bruce Fischl wrote:

...

Hi Dana,

are you using vnc or nomachine or something? Have you used qdec in this way before?

Bruce On Tue, 14 Jul 2009, Dana W. Moore wrote:

Hi everyone,

...

I am trying to use qdec for the first time, and I get the following error message:

X Error of failed request: GLXBadRenderRequest Major opcode of failed request: 132 (GLX) Minor opcode of failed request: 1 (X_GLXRender) Serial number of failed request: 1705 Current serial number in output stream: 1709 Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x4455a767] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x4455a81e] #2 /usr/lib/libX11.so.6 [0x4033d518] #3 /usr/lib/libX11.so.6(XESetCloseDisplay+0x31) [0x403208d1] #4 /usr/lib/libGL.so.1 [0x40291b69]

I am accessing our linux computer remotely using ssh from a windows machine--I don't know if this is related to the problem.

Thanks, Dana

Dana W. Moore, Ph.D. Neuropsychology Fellow Cornell Neuropsychology Service Weill Medical College of Cornell University New York Presbyterian Hospital Department of Neurology & Neuroscience 428 East 72nd Street, Suite 500 New York, NY 10021 Phone: 212-746-2441 Fax: 212-746-5584 Email: dwm2003@med.cornell.edu

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Dana W. Moore, Ph.D. Neuropsychology Fellow Cornell Neuropsychology Service Weill Medical College of Cornell University New York Presbyterian Hospital Department of Neurology & Neuroscience 428 East 72nd Street, Suite 500 New York, NY 10021 Phone: 212-746-2441 Fax: 212-746-5584 Email: dwm2003@med.cornell.edu

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Hi Zonglei,

The problem was related to the fact that I was accessing another computer remotely to run FreeSurfer, and I needed something to support the graphics. I assume you are also accessing a remote computer? I was using Exceed, which was working fine for tkmedit and tksurfer, but for some reason, qdec did not like Exceed. So I installed WinaXe Plus, and that has been working fine.

Good luck,

Dana

At 02:25 AM 10/29/2009, you wrote:

Hi Dr. Moore: I met the same error reported as you posted when I used qdec in our system. Have you already resolved this probelm ? If you have the solution to resolve it, please give me some clues.

Thanks

Zonglei Zhen 2009/7/14 Dana W. Moore <mailto:dwm2003@med.cornell.edudwm2003@med.cornell.edu> Hi everyone,

I am trying to use qdec for the first time, and I get the following error message:

X Error of failed request: GLXBadRenderRequest Major opcode of failed request: 132 (GLX) Minor opcode of failed request: 1 (X_GLXRender) Serial number of failed request: 1705 Current serial number in output stream: 1709 Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x4455a767] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0x4455a81e] #2 /usr/lib/libX11.so.6 [0x4033d518] #3 /usr/lib/libX11.so.6(XESetCloseDisplay+0x31) [0x403208d1] #4 /usr/lib/libGL.so.1 [0x40291b69]

I am accessing our linux computer remotely using ssh from a windows machine--I don't know if this is related to the problem.

Thanks, Dana

Dana W. Moore, Ph.D. Neuropsychology Fellow Cornell Neuropsychology Service Weill Medical College of Cornell University New York Presbyterian Hospital Department of Neurology & Neuroscience 428 East 72nd Street, Suite 500 New York, NY 10021 Phone: 212-746-2441 Fax: 212-746-5584 Email: mailto:dwm2003@med.cornell.edudwm2003@med.cornell.edu

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-- Zonglei Zhen, PhD Assistant Professor of Cognitive Neuroscience BNU Imaging Center for Brain Research, State Key Laboratory of Cognitive Neuroscience and Learning, P.R. China

Dana W. Moore, Ph.D. Neuropsychology Fellow Cornell Neuropsychology Service Weill Medical College of Cornell University New York Presbyterian Hospital Department of Neurology & Neuroscience 428 East 72nd Street, Suite 500 New York, NY 10021 Phone: 212-746-2823 Fax: 212-746-5584 Email: dwm2003@med.cornell.edu