Originally Posted by Darkened_Sky
it probably didn't work. but to get sure: you have rebooted after the change? look into your build.prop (in system folder) for the value "ro.sf.lcd_density" if it is still 320. if yes then try to change it manually to the value you like. then save and close it and reopen the build.prop to look if the change sticks.
I often noticed that rom toolbox (pro) has a problem with the integrated superuser app, so that it don't get r/w permissions to system.
That is the reason why I switched to SuperSu by chainfire, with this Rom Toolbox and all other root apps never had problems
Thanks for your reply friend. It probably did work, icons looked a bit small but, still the text seemed a bit blurry and wasn't as crisp as on the stock rom. I restored the backup of stock rom and checked pixel density and resolution. it showed a resolution of 720x1280 and ppi of 320. Whereas general specs of the phone say it is 306. Or I don't know that 306 is something else
.... To sum it up, both the stock rom and CM show a pixel density of 320. But, stock has a resolution of 720 whereas CM had 780 pixels..... don't know what to do.