The GTX 750 ti has been on the list since it was released. The most common problem running it on linus is installing the NV proprietary drivers since the normal linux driver does not support the necessary features.
Then other Linux problem is getting a copy of GPUs.txt downloaded -- sometimes on restart the client tries to download before the network is up and then ignores the error.
Search this site for instructions if you need them -- I can't remember where they are offhand.
Hardware configuration: Intel i7-4770K @ 4.5 GHz, 16 GB DDR3-2133 Corsair Vengence (black/red), EVGA GTX 760 @ 1200 MHz, on an Asus Maximus VI Hero MB (black/red), in a blacked out Antec P280 Tower, with a Xigmatek Night Hawk (black) HSF, Seasonic 760w Platinum (black case, sleeves, wires), 4 SilenX 120mm Case fans with silicon fan gaskets and silicon mounts (all black), a 512GB Samsung SSD (black), and a 2TB Black Western Digital HD (silver/black).