Gui updating framebuffer
So even when displaying a still image, the frame buffer is being transferred to the display.
The display update frequency varies among displays, but it is usually in the 50-60 Hz range.
Wind ML, Zinc, Peg, Nano X, etc all have different features. I used painter to draw a sin wave with 600 points, but found refresh rate has only about 5~7Hz, cannot be higher.
Having graphics acceleration to draw lines, text, fill areas, etc will increase the frame rates possible with some of these systems. Then I try QWT curvdemo2 example (300 data points) on ARM linux for comparison and found refresh rate also very slow, is it normal?
More specific question below Will it be enough to create a If the game crashes, init will restart it again.
The game probably needs to know that is should open tty1 (or any other at your choice) if you need the console, the other terminals should be normal, so ctrl alt F2 should jump to a login console If you want to try with the runlevel, you are on good track...
you probably need to define a TTY (probably export TTY=/dev/tty1) so the app knows where it should connect (as inittab and rc script run without any TTY defined).
Visit Stack Exchange I have a python application that uses pygame to access the framebuffer directly without using X.The TFT controller on an MCU is responsible for updating the display glass with the pixel values found in the frame buffer.The display glass itself does not have any memory, so the pixel values must be transmitted to the display continuously, regardless of whether or not the frame buffer contents change.When you call 'qlabel-set Text('newer text'), then the code goes and updates the frame buffer.You should be careful in comparing graphic frame works.