I'm getting a problem in tahrpup with large areas of windows in some applications turning black, or occasionally grey, or sometimes into gibberish, when the window is resized.
Apparently this is quite a well-known fault in a number of Linux versions. A lot of people recommend disabling window animations, but I'm not sure how to do this.
Here are some of the suggestions I've seen, and the reasons they're not working for me.
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1. Change settings in Unity Tweak Tool.
Unity Tweak Tool seems to install but doesn't open. Same goes for Gnome Tweak Tool.
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2. This command is alleged to help:
gsettings set org.gnome.desktop.interface enable-animations false
-- then open the run window, type r and enter.
This leads only to a selection of error messages (details available on request).
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3. Use dconf editor
Tried this but ticking or unticking the box didn't seem to change anything.
gconf editor doesn't seem to help either.
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4. Reduce the amount of memory used by the video card.
I've no idea how to do this. I can't see anything that looks relevant in BIOS or JWM. Web searching doesn't help.
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Anyone know how to fix this?