Opera 9.6 (9.5x) + Linux + subpixel font smoothing.
I have long complained both there and here that the fonts in Opera under Linux (and specifically, when using it in the Gnome shell) is something vague and indigestible. Nobody gave an answer - did everyone really like it?
So ... In order to enable subpixel anti-aliasing of fonts in Opera, you need to install KControl and put the necessary tick in the font settings. After that, some individuals will still claim that Opera is not for KDE sharpened? And KControl, by the way, is to put and tear down 94 meters. Demolish as unnecessary - then everything will work.
Thanks to all. ')
Upd. I will answer all here. Yes, the tone of the topic is hysterical. It's hard when you don't know where to dig and what is the reason. Yes, it infuriates me that I had to configure the fonts in the Qt application through the KDE configuration utility, and not through q4-qtconfig. In general, something should be wrong ... And now, when it is clear what the reason for this behavior is, I will dig in the direction of normal system settings. Notice, in Skype, Arora and other Qt4 applications, the fonts are OK IMMEDIATELY. Yes, you don’t need to go far - qt4-qtconfig also picked up everything at once.