<div dir="ltr"><span style="font-family:arial,sans-serif;font-size:13px">I'm noticing some very sluggish GUI behavior on certain applications when using x2go.  I'm using x2go with a Windows client against an Ubuntu 14.04 server using LXDE window manager.</span><br style="font-family:arial,sans-serif;font-size:13px">
<br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">Certain graphical applications are very slow (to the point of being unusable):</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px">- gedit</span><br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">- eclipse</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px">- Sublime Text</span><br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">- Google Chrome</span><br style="font-family:arial,sans-serif;font-size:13px">
<br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">Other graphical applications perform quite well:</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px">- Firefox</span><br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">- Terminator</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px">- Libreoffice</span><br style="font-family:arial,sans-serif;font-size:13px"><br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">I suspected it was a 'libcairo2' issue, as I've seen this before on older Ubuntu systems.</span><br style="font-family:arial,sans-serif;font-size:13px">
<br style="font-family:arial,sans-serif;font-size:13px"><a href="https://bugs.freedesktop.org/show_bug.cgi?id=32014" target="_blank" style="font-family:arial,sans-serif;font-size:13px">https://bugs.freedesktop.org/<u></u>show_bug.cgi?id=32014</a><br style="font-family:arial,sans-serif;font-size:13px">
<br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">However, both gedit and libreoffice use libcairo2 and exhibit vastly different performance:</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px">$ ldd /usr/lib/libreoffice/program/</span><u style="font-family:arial,sans-serif;font-size:13px"></u><span style="font-family:arial,sans-serif;font-size:13px">s</span><span style="font-family:arial,sans-serif;font-size:13px">office.bin | grep cairo </span><div>
<span style="font-family:arial,sans-serif;font-size:13px">    libpangocairo-1.0.so.0 => /usr/lib/x86_64-linux-gnu/</span><u style="font-family:arial,sans-serif;font-size:13px"></u><span style="font-family:arial,sans-serif;font-size:13px">libp</span><span style="font-family:arial,sans-serif;font-size:13px">angocairo-1.0.so.0 (0x00007fbbdfa13000)</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px">    libcairo.so.2 => /usr/lib/x86_64-linux-gnu/</span><u style="font-family:arial,sans-serif;font-size:13px"></u><span style="font-family:arial,sans-serif;font-size:13px">libc</span><span style="font-family:arial,sans-serif;font-size:13px">airo.so.2 (0x00007fbbdf708000)</span><br style="font-family:arial,sans-serif;font-size:13px">
<br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">$ ldd `which gedit` | grep cairo</span><br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">    libcairo.so.2 => /usr/lib/x86_64-linux-gnu/</span><u style="font-family:arial,sans-serif;font-size:13px"></u><span style="font-family:arial,sans-serif;font-size:13px">libc</span><span style="font-family:arial,sans-serif;font-size:13px">airo.so.2 (0x00007f898c8e9000)</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px">    libpangocairo-1.0.so.0 => /usr/lib/x86_64-linux-gnu/</span><u style="font-family:arial,sans-serif;font-size:13px"></u><span style="font-family:arial,sans-serif;font-size:13px">libp</span><span style="font-family:arial,sans-serif;font-size:13px">angocairo-1.0.so.0 (0x00007f898afbb000)</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px">    libcairo-gobject.so.2 => /usr/lib/x86_64-linux-gnu/</span><u style="font-family:arial,sans-serif;font-size:13px"></u><span style="font-family:arial,sans-serif;font-size:13px">libc</span><span style="font-family:arial,sans-serif;font-size:13px">airo-gobject.so.2 (0x00007f898a430000)</span><br style="font-family:arial,sans-serif;font-size:13px">
<br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">Could it be a GTK version thing?  Anyone have any ideas?  Not sure what the commonality is between applications that perform well vs. poorly and where to go from here.</span><br style="font-family:arial,sans-serif;font-size:13px">
<br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">Thanks,</span><br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">Eric</span><br>
</div></div>