Does Pi only work with certain brand of USB keyboards.

[lilzz]

I try 2 USB keyboards already and don't work with pi. Tabbed on keyboard, and no response.
Also, SD card with NOOB has config.txt and when I powered up , there's nothing displayed except a greenish and blueish screen flashed back and forth.

I suppose to tab the keyboard for 2 to enter but no response when I hit 2 on keyboard.

[jamesh]

Probably a inadequate power supply or bad power cable.

Every keyboard I have ever tried has worked fine once I had decent power.

[paulie]

Potential power problems aside, there is a list of working peripherals, & problem devices: you could be unlucky and be using one that has issues.

[mahjongg]

keyboards that have issues generally have a complete USB hub built in, or have more (back) lights than a Christmas tree.

[FTrevorGowen]

I try 2 USB keyboards already and don't work with pi. Tabbed on keyboard, and no response.
Also, SD card with NOOB has config.txt and when I powered up , there's nothing displayed except a greenish and blueish screen flashed back and forth.
I suppose to tab the keyboard for 2 to enter but no response when I hit 2 on keyboard.

Potential power problems aside, there is a list of working peripherals, & problem devices: you could be unlucky and be using one that has issues.

I guess that @paulie was thinking of this list: http://elinux.org/RPi_USB_Keyboards
I've had no problems with "cheap & cheerful" wired USB keyboards but the dongles of some wireless devices may draw too much current (depending upon what other USB devices you have plugged in). Avoid those with hubs, flashing lights, bells whistles ... (again may need too much current). W.r.t. to bluetooth devices, I've only tried a bluetooth mouse, so can't comment on bluetooth keyboards. Your PSU should be spec'd at 5V 1000mA ( or better). W.r.t. NOOBS - that can take several seconds to detect and connect to a wireless keyboard - you may find toggling the shift or numeric keys more effective for such keyboards (I was advised by @rdb to do this with a wireless mini-keyboard I have)
Trev.