There's a trade off that if you ask for higher FPS you're going to load the kernel more because it's trying to keep the display updated. Reboot after each edit to make sure the settings are loaded properly. You can tweak fps (frames per second) from 20 to 60 and frequency up to 62MHz for tradeoffs in performance and speed. But you can put in 42MHz or even try 62MHz and it will update faster You might need to configure your /.xinitrc. To solve that, just install the package that contains startx with the command: apt-get install xinit and then use startx instead of startlxde. Running the KDE does not serve any purpose for PwnBerry. We tested this display nicely with 32MHz and we suggest that. I've run into this problem not because I wanted startx, but because startlxde caused cannot open DISPLAY error. Warning: you do not want to use the startx command, because it will bring up the KDE for Raspbian. So if you put in 48000000 for the speed, you won't actually get 48MHz, you'll actually only get about 42MHz because it gets rounded down. Here's the only SPI frequencies this kernel supports You will always get frequencies that are 250MHz divided by an even number. The next (recommended) step is to install xinit which enables you to launch the Xorg Display Server from the command line (with startx) sudo apt-get install -no-install-recommends xinit Install PIXEL, which is the official Raspbian desktop environment included with the full version of Raspbian. to be used as a traditional raspberry pi when Im not playing media files. The kernel will round the number to the closest value. On a standard Debian raspberry pi install, if I met a command prompt I can. So tweaking the number a little won't do anything. If no user autostart script is found, Linux will run the global /etc/xdg/lxsession/LXDE-pi/autostart script instead. Opening the desktop Enter the startx command as piraspberrypistartx and 10.
BUT, here's the thing, the Pi only supports a fixed number of SPI frequencies. If the display is not available at the first point of startup. In your case, startx more or less just call startlxde. Or whatever you like for speed, rotation, and frames-per-second. It starts X with the windows manager you specified (actually X is not the same thing than the window manager, but that's an other story). You can change the SPI frequency (overclock the display) by editing /boot/config.txt and changing the dtoverlay options line to: dtoverlay=pitft28r,rotate=90,speed=62000000,fps=25
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