What you are seeing there is the Crossfire appliccations profile setting.. ( who let you use specific appliccations profile as you want when you are creating your own game profile.
For an unkown reason, it load when you are open the CCC on your setup... ( not happend in my case anyway ). I can imagine some profiles are used too for Eyefinity setup and in your case they flash one second. ( or you have pinned the setting by error, a registry line who are still there, or well i dont know )
I installed the AMD driver on a friend's Linux Mint 17 (just go to the "driver manager" and click a radio button, then let the hamsters run their wheels). It's Catalyst 13.5 I think.
I don't like the drive panel very much but I'm unfamiliar with it and have no other computer to get friends with it. What pisses me is I'm stuck at 60Hz and can't find where the option is (need to enable 100Hz on this computer, which has 2014 hardware and a very good monitor from 2001). Note that open source driver let me stuck at 60Hz too, and I had to write a script with xrandr --this, xrandr --that and make it run on startup.
I probably have to modifiy the script, suspecting the outputs are named simply differently.
Anyway that's a linux thing
Cant you create a new profile for your monitor, with the res and add the hz needed, then choose it ( on TV panel )? ...... An other way will maybe be to find a software like CRU who will let you add a specific monitor profile to the driver ( with the 100hz ) and then use it in CCC. but i dont know if a version exist for Linux. Sorry i dont really use Linux, so i dont know how his their panel..
CCC do have lots of hidden setting. You can enable all of them by editing the .inf for driver and disable windows driver eforcement.
my laptop is using ATi Mobility 5700 that rebranded to 6500. But they decided to hide so much setting. Luckily all of them can be made available by editin the .inf.
of course featues that not supported by hardware will show but unusable.For example, i can make MLAA option visible in my PC with Radeon HD 4770 but if i enable it, the MLAA wont work and game flickers like mad.
then i found out that RadeonPro also can enable those setting without editing .inf file :/
You dont need to edit the . inf, you open the registry of windows goes to your gpu folder and you get all the function available there (including to change the core / memory speed on different powersaving phase, ULPS, non enabled setting by default, fan rpm speed, etc etc )... or use RadeonPro as you said ( RadeonPro is extremely complete anyway, with AA supplementary modes, dynamic refresh rate, SweetFX for AMD directly available etc etc ) .. Only touch the *.inf if you want to mod the driver...
Im sorry for some comment, i use both Nvidia and AMD gpu's ( laptop and desktop ), offtly configure pc with Nvidia gpu's for friend, family, and maybe because im used to the CCC, i find it pretty clear and easy to use compared to Nvidia ones.
Anyway, we know that it seems the CCC will be largely revisited really soon.