<div dir="ltr"><br><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div class="im">
> [:~]$ glxgears -info<br>
> Xlib: extension "GLX" missing on display ":0.0".<br>
> Error: couldn't get an RGB, Double-buffered visual<br>
> [:~]$<br>
<br>
</div>And at this point it simply exits?<br></blockquote><div><br></div><div style>Yes.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
Do you have libgl1-mesa-dri or libgl1-mesa-swx11 installed?<br></blockquote><div><br></div><div style>Looks like libgl1-mesa-dri is installed. libgl1-mesa-swx11 is not installed.</div><div><br></div><div>[:~]$ dpkg -l | grep libgl1-mesa</div>
<div>ii libgl1-mesa-dri:amd64 8.0.5-6 amd64 free implementation of the OpenGL API -- DRI modules</div><div>ii libgl1-mesa-glx:amd64 8.0.5-6 amd64 free implementation of the OpenGL API -- GLX runtime</div>
<div>[:~]$ </div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">Could enter bt at this point?<br>
</blockquote><div><br></div><div><br></div><div style>As you wish!</div><div style><br></div><div style><div>Program received signal SIGSEGV, Segmentation fault.</div><div>0x00000000005b9183 in PreviewIdentifyTool::setConstantOn(bool) ()</div>
<div>(gdb) bt</div><div>#0 0x00000000005b9183 in PreviewIdentifyTool::setConstantOn(bool) ()</div><div>#1 0x000000000056040f in GLPreviewFrame::SetMode(int) ()</div><div>#2 0x00007ffff53aa3f6 in wxEvtHandler::ProcessEventIfMatches(wxEventTableEntryBase const&, wxEvtHandler*, wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-2.8.so.0</div>
<div>#3 0x00007ffff53aa564 in wxEventHashTable::HandleEvent(wxEvent&, wxEvtHandler*) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-2.8.so.0</div><div>#4 0x00007ffff53aa887 in wxEvtHandler::ProcessEvent(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-2.8.so.0</div>
<div>#5 0x00007ffff4f963d9 in wxWindowBase::TryParent(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-2.8.so.0</div><div>#6 0x00007ffff4f963d9 in wxWindowBase::TryParent(wxEvent&) () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-2.8.so.0</div>
<div>#7 0x00007ffff4f79f2b in wxNotebookBase::SendPageChangedEvent(int, int) () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-2.8.so.0</div><div>#8 0x00007fffef05c620 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0</div>
<div>#9 0x00007fffef06dfde in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0</div><div>#10 0x00007fffef075cd1 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0</div><div>#11 0x00007fffef075f82 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0</div>
<div>#12 0x00007ffff0779ef0 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0</div><div>#13 0x00007ffff0758f19 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0</div><div>#14 0x00007fffef05c620 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0</div>
<div>#15 0x00007fffef06db1b in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0</div><div>#16 0x00007fffef075972 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0</div><div>#17 0x00007fffef075f82 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0</div>
<div>#18 0x00007ffff0870e9e in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0</div><div>#19 0x00007ffff0757284 in gtk_propagate_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0</div><div>#20 0x00007ffff07575eb in gtk_main_do_event () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0</div>
<div>#21 0x00007ffff03cd80c in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0</div><div>#22 0x00007fffeeb96f25 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0</div><div>#23 0x00007fffeeb97268 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0</div>
<div>#24 0x00007fffeeb976da in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0</div><div>#25 0x00007ffff07565e7 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0</div><div>#26 0x00007ffff4ebc268 in wxEventLoop::Run() () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-2.8.so.0</div>
<div>#27 0x00007ffff4f2e33c in wxAppBase::MainLoop() () from /usr/lib/x86_64-linux-gnu/libwx_gtk2u_core-2.8.so.0</div><div>#28 0x00007ffff535c4e5 in wxEntry(int&, wchar_t**) () from /usr/lib/x86_64-linux-gnu/libwx_baseu-2.8.so.0</div>
<div>#29 0x00000000004c2dc2 in main ()</div><div>(gdb) </div><div><br></div><div style>Thanks!</div><div style><br></div><div style>Charlie</div></div></div></div></div>