I have installed nvidia proprietary driver on livecd.
Will it break the 3d support for free drivers like intel or radeon etc?
The system is 12.04
I'm assuming you've customized a LiveCD with the Nvidia proprietary driver....
No, on systems without an Nvidia card, the proprietary driver should not break the open-source Intel i915
or AMD radeon
driver support. But if you have a hybrid Nvidia "Optimus" laptop, the behavior may be unpredictable.