I've been running KDE 4.10.5 on Slackware64 14.0 for the last two or three months. Everything's been running perfectly. I have the standard set of KDE desktop effects enabled, and the only extravagance is wobbly windows.
Today, all of a sudden, Windows aren't wobbly anymore. There seems to be no way to re-enable the effect. KDE settings keep complaining that "7 desktop effects can't be enabled".
Here's my video card:
[kikinovak@alphamule:~] $ /sbin/lspci | grep -i vga
01:00.0 VGA compatible controller: nVidia Corporation GF119 [GeForce GT 520] (rev a1)
I'm using the latest Nvidia proprietary driver on it, and nouveau is blacklisted.
What's puzzling here: the effect has been working for the last two months and then suddenly stopped. I'm intrigued.
Any idea what's going on here?