My guess is that Yi Hui has the Intel integrated graphics in the t510 instead of the GeForce option. His hardware/driver is likely incapable of multi-sampled (antialiased) rendering to framebuffer objects, which are used for caching. So besides turning off OpenGL, you could turn off caching. <br>
<br>The obvious real solution would be to disable multisampling if unsupported by the hardware. I haven't figured out a way to detect this from Qt (made difficult by not having this problem on my computer). I could write a bunch of OpenGL code, but that is a pain.<br>
<br>I might just add a logical "multisampling" argument to qlayer() for the user to specify the correct behavior.<br><br>Michael<br><br><div class="gmail_quote">On Fri, Aug 6, 2010 at 10:57 PM, Tengfei Yin <span dir="ltr"><<a href="mailto:yintengfei@gmail.com">yintengfei@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">...Yes, maybe you are right, your t510 has a i5 cpu...it's new and awesome!<div>you may check with opengl community, since we have the same package and library, the only difference is hardware of your laptop is better than my t61...</div>
<div><br></div><div>Have a nice weekend!!</div><div><br></div><div>Best</div><div><br></div><div><font color="#888888">Tengfei<br></font><div><div><div></div><div class="h5"><br><div class="gmail_quote">On Fri, Aug 6, 2010 at 9:07 PM, Yihui Xie <span dir="ltr"><<a href="mailto:xie@yihui.name" target="_blank">xie@yihui.name</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">I do have these packages:<br>
<br>
yihui@xie:~$ dpkg -l | grep libgl<br>
ii libgl1-mesa-dev<br>
7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid<br>
<div>A free implementation of the OpenGL API -- G<br>
ii libgl1-mesa-dri<br>
</div>7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid<br>
<div>A free implementation of the OpenGL API -- D<br>
ii libgl1-mesa-glx<br>
</div>7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid<br>
<div><div></div><div>A free implementation of the OpenGL API -- G<br>
ii libglade2-0 1:2.6.4-1build1<br>
library to load .glade files<br>
at runtime<br>
ii libglade2.0-cil 2.12.9-4<br>
CLI binding for the Glade<br>
libraries 2.6<br>
ii libglc0 0.7.2-1<br>
QuesoGLC GLC implementation<br>
ii libglib-perl 1:1.222-1<br>
Perl interface to the GLib and<br>
GObject libra<br>
ii libglib2.0-0 2.24.1-0ubuntu1<br>
The GLib library of C routines<br>
ii libglib2.0-cil 2.12.9-4<br>
CLI binding for the GLib<br>
utility library 2.1<br>
ii libglib2.0-cil-dev 2.12.9-4<br>
CLI binding for the GLib<br>
utility library 2.1<br>
ii libglib2.0-data 2.24.1-0ubuntu1<br>
Common files for GLib library<br>
ii libglib2.0-dev 2.24.1-0ubuntu1<br>
Development files for the GLib<br>
library<br>
ii libglibmm-2.4-1c2a 2.24.2-0ubuntu1<br>
C++ wrapper for the GLib<br>
toolkit (shared lib<br>
ii libglitz-glx1 0.5.6-1build1<br>
Glitz OpenGL library GLX<br>
backend<br>
ii libglitz1 0.5.6-1build1<br>
Glitz OpenGL image compositing<br>
library<br>
ii libglpng 1.45-6<br>
PNG loader for OpenGL<br>
ii libglu1-mesa<br>
</div></div>7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid<br>
<div>The OpenGL utility library (GLU)<br>
ii libglu1-mesa-dev<br>
</div>7.9.0+git20100806.27041d7c-0ubuntu0sarvatt~lucid<br>
<div>The OpenGL utility library -- development fi<br>
<br>
</div>and I still feel it is a problem related to hardware...<br>
<div><br>
Regards,<br>
Yihui<br>
--<br>
Yihui Xie <<a href="mailto:xieyihui@gmail.com" target="_blank">xieyihui@gmail.com</a>><br>
Phone: 515-294-6609 Web: <a href="http://yihui.name" target="_blank">http://yihui.name</a><br>
Department of Statistics, Iowa State University<br>
3211 Snedecor Hall, Ames, IA<br>
<br>
<br>
<br>
</div><div><div></div><div>On Fri, Aug 6, 2010 at 6:53 PM, Tengfei Yin <<a href="mailto:yintengfei@gmail.com" target="_blank">yintengfei@gmail.com</a>> wrote:<br>
> Hi Yihui,<br>
> Do you also have the same library for opengl as mine? in my last email, I<br>
> also attached a list for opengl library I have,<br>
> you may try this two first...<br>
> libglu1-mesa<br>
> libglu1-mesa-dev<br>
> Best<br>
> Tengfei<br>
</div></div></blockquote></div><br><br clear="all"><br></div></div><div class="im">-- <br>Tengfei Yin<br>MCDB PhD student <br>1620 Howe Hall, 2274,<br>Iowa State University<br>Ames, IA,50011-2274<br>Homepage: <a href="http://www.tengfei.name" target="_blank">www.tengfei.name</a><br>
<br>
</div></div></div>
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