Distorted Fonts with Desktop Effects

I’m getting this weird behavior when I have Desktop Effects enabled. When it is on, it’s like there are two or three vertical and horizontal lines running across my screen that distort any of certain font characters that are under them. In some cases these characters are trimmed slightly, in others they have an odd skew to them, and in still others the letters are completely removed/missing/invisible.

With Desktop Effects disabled, everything appears as normal.


I have attached a screenshot in which you can see there are at least three letters missing from the left side (Desktop Effects enabled) and not from the right side (Desktop Effects disabled). There is a missing ‘l,’ a trimmed ‘t,’ and a distorted ‘p.’

I’m on a one-week-old 11.4 install with nVidia drivers installed from that repo.

As far as I can tell, Desktop Effects works with few other issues, although there are some aggravating ones (having to click task tray items multiple times to get a response, multiple windows highlighted in the menu bar as though they all had focus, etc) that I will look into once I get this one key issue taken care of.

If any other diagnostic information might be useful, please let me know and I will provide ASAP.

KDE or Gnome?

Sorry, about that missing piece of crucial information, I can’t believe I left it out!

I’m using Gnome 2.32.1

Which drivers and graphic adapter you using?

Again, I apologize for having left out such obviously necessary information.

I have an XFX nVidia 8600GTS
nvidia-gfxG02-kmp-desktop version version 260.19.44_k2.6.37.1_1.2-23.1

I also have xorg-x11-driver-video-nouveau version 0.0.16_20110115_b795ca6-3.1 installed, but I don’t think it’s in use. I’m going to uninstall, though.

I’m using 11.4 with Gnome on a nvidia GTX 285 and have been having a similar issue which started recently and seems to be getting worse. I just disabled desktop effects to see if that would help and it looks as though it did. Has a bug report already been filed for this? I will post an update if the problem resurfaces with desktop effects disabled.