<p>The conventional wisdom is to suggest trying the current version of Geany, though I doubt it will make any difference.  The problem is like the desktop is not telling GTK its visible so it should re-draw.</p>

<p>I don't know Lubuntu at all, but if it has a setting for desktop acceleration, try turning it off.  I have seen very slow screen redraws on Cinnamon with acceleration on, though that only affected the edit window and needed full screen as well. </p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly or <a href="https://github.com/geany/geany/issues/968#issuecomment-197553839">view it on GitHub</a><img alt="" height="1" src="https://github.com/notifications/beacon/ABDrJ08IjB2-TT8cs0Us5MlHEBN0brGyks5puHQDgaJpZM4HyTxJ.gif" width="1" /></p>
<div itemscope itemtype="http://schema.org/EmailMessage">
<div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
  <link itemprop="url" href="https://github.com/geany/geany/issues/968#issuecomment-197553839"></link>
  <meta itemprop="name" content="View Issue"></meta>
</div>
<meta itemprop="description" content="View this Issue on GitHub"></meta>
</div>