Display, Wifi, and Pauses
I have the raspberry PI 3 with 7" touchscreen and been performing some tests using both the prebuilt raspberry pi repeiter server image and installing on raspbian jessie with pixel (https://www.raspberrypi.org/downloads/raspbian/). My plan is to find the most stable configuration and stick with it.
When using the prebuilt image I keep having the touch screen display go dark like the screen saver has turned on and won't wake back up with a touch. I can still access repetier server over the web interface and ssh into the system. What can I do to kick start the touch UI again short of restarting the pi? I can attach logs to help debug just let me know.
When using the prebuilt image wifi will drop out and not come back on it's own. To fix as it is usually during a print I usually connect via ethernet or by the touch ui (if it is working at the time) and reconnect the wifi. Currently I am trying the fix which is to comment" # nmcli connection delete "$P1" ifname $WLAN &> /dev/null" and so far so good.
When using raspbian jessie and the armhf build I don't have the touch screen timeout / black out issue or the wifi issue but I do have the problem where printing will pause for 10 seconds or more causing a large defect to appear on the print. I am running three printers off of the pi and it doesn't matter if only one, two, or all three are being used at the time I get random pausing. When there is more than one printer operating they all will pause at the same time. So far I haven't noticed this problem with the prebuilt pi image. I have tried everything I can think of from setting the buffer size to 96 to match the printers firmware configuration (the marlin default) to tweaking with timeout values and even modifying the printers firmware (lower baud rate, larger buffer, etc..) nothing seems to work.
Let me know if you want logs or further information. At this point it is easy to switch between the two builds (swap SD cards).