It might be related to your proprietary graphics driver. Here are two launchpad bugs where this is discussed:<div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a href="https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/267269">https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/267269</a></div>
<div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a href="https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/441586">https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/441586</a></div><div><br></div>
<div>What graphics card/driver do you have?</div><div> $ lspci|grep VGA</div><div><br>Try switching your proprietary graphics driver off-and-on again, and restart compiz. (google on howto do that)</div><div><br></div><div>
PS remember to CC the list when you reply</div><div><br></div><div>-- <br>Péter Nel</div><div><br><div class="gmail_quote">On Mon, Jul 11, 2011 at 11:23 AM, Jan Greeff <span dir="ltr"><<a href="mailto:jan@verslank.net">jan@verslank.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><u></u>
<div bgcolor="#ffffff" text="#000000">
No Peter, it's inside out! Just kidding - it goes upside down.<br>
<br>
Regards,<br><font color="#888888">
<br>
Jan</font><div><div></div><div class="h5"><br>
<br>
<br>
On 11/07/2011 11:09, Peter Nel wrote:
<blockquote type="cite">Lol. Then don't select it!
<div><br>
</div>
<div>Just kidding.</div>
<div><br>
</div>
<div>Is it color inversion (as in negative colors)? - because the
"Accessibility" -> "Negative"</div>
<div>effect inverts colors (default key-binding : Meta+m, or
Meta+n)</div>
<div><br>
</div>
<div>I just enabled the "Negative" effect to check, and now the
unity launcher has a permanent imprint on the screen with
drawing artifacts of bits of the previous dialog on it - bug.</div>
<div>This is why we do'nt have compizconfig installed by default
in 11.04. Not all compiz effects work right with unity. Though I
believe 10.10 didn't have those problems.</div>
<div><br>
</div>
<div><br>
<div class="gmail_quote">On Mon, Jul 11, 2011 at 10:54 AM, Jan
Greeff <span dir="ltr"><<a href="mailto:jan@verslank.net" target="_blank">jan@verslank.net</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">
<div bgcolor="#ffffff" text="#000000"> Now, if I select
"visual effects" "extra" my desktop gets inverted!<br>
<font color="#888888"> <br>
Jan <br>
</font>
<div>
<div> <br>
On 11/07/2011 10:37, Peter Nel wrote:
<blockquote type="cite"><br>
<br>
<div class="gmail_quote">On Thu, Jul 7, 2011 at 2:04
PM, Jan Greeff <span dir="ltr"><<a href="mailto:jan@verslank.net" target="_blank">jan@verslank.net</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"> Done but the
problem persists...<br>
<br>
<br>
On 07/07/2011 13:43, Peter Nel wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex"> sudo
apt-get install compizconfig-settings-manager<br>
</blockquote>
</blockquote>
</div>
<br>
Make sure the following is enabled in CompizConfig
Settings Manager:
<div>"Desktop" section -> "Desktop Wall"
->"Edge Flipping" tab -> "Edge Flip Move"
checkbox (on)</div>
<div><br>
-- <br>
Péter Nel<br>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</blockquote>
</div></div></div>
</blockquote></div><br>
</div>