I will be triggering/syncing the videos by broadcasting OSC messages to the 14 RasPi's. It's important to me to try and resolve this, because I'll be using 14 RasPi's to run videos on the 14 monitors during my bands live shows. But the combination of that specific RasPi on the Dell 1708FP is an issue. The problem RasPi with the original SD card (Jessie Lite) works on an HDMI monitor (looks normal), my Dell 2009W DVI monitor (however the text is huge), but not on my Dell 1708FP (random screen flashes). The problem RasPi with the new SD card (Stretch Lite) works on an HDMI monitor and my Dell 2009W DVI monitor. The problem RasPi with the new SD card (Stretch Lite) DOES NOT work on my Dell 1708FP. I tried a different HDMI-to-DVI adapter with the problem RasPi, still no luck.Ī different RasPi with a new SD card (Stretch Lite) works on my Dell 1708FP. I attach the problem RasPi with the newly flashed SD card to a different monitor, the Dell UltraSharp 2009W (1680 x 1050 at 60 Hz), using the same HDMI-to-DVI adapter connection. The result was a black screen, no flashing. I used the newly flashed SD card in the problem RasPi. I have 14 Dell 1708FP monitors, so I tested the problem RasPi on a few of them, and the results were all the same. I used that image in a different RasPi Zero W and connected it to the monitor in question (the the Dell 1708FP). I flashed another SD card with a fresh Raspbian image (Stretch Lite).

Still no luck getting display output on the Dell 1708FP. Then I spent days reading many posts regarding this problem and messing with every /boot/config.txt HDMI setting combination I could think of, including setting the hdmi_group=2 and the hdmi_mode=36 (which for the 1280 x 1024 at 75Hz resolution).

After messing around with the /boot/config.txt HDMI settings, I got output on the Dell 2009W, but the console text was huge. I connected the problem RasPi to a different monitor, a Dell UltraSharp 2009W (1680 x 1050 at 60 Hz), using the same HDMI-to-DVI adapter connection. I connected the problem RasPi to an HDMI monitor to confirm the RasPi was fully functional. So here's what I have tried so far to debug/resolve the problem. So at first I thought the HDMI port or the GPU failed. However, I can SSH into the RasPi with no problems. Only the Dell monitor's floating overlay, that indicates the digital input is being used, was visible at times during the random flashing. There was no RasPi console visible during the flashes.

After the reboot the RasPi Zero W at first displayed nothing on the attached monitor. All was good!īut then, while a video was playing, I lost the WIFI connection and had to reboot. The monitor resolution is 1280 x 1024 at 75 Hz.Īfter days of researching a good video player that can be controlled with OSC, and even more days configuring the Pi to get it to work properly, I finally was able to play videos and control the video player remotely with OSC. The connection is via an HDMI-to-DVI adapter. I have three RasPi Zero W's running Jessie Lite, that I use for displaying and syncing SD video on multiple Dell UltraSharp 1708FP (17-inch) monitors. My RasPi Zero W is causing random screen flashes.

Raspbian causing screenflick er