Chris_ 0 Posted March 3 (edited) Hallo, I have a ThinkBoard 3N Lite and want to control a G156HCE-L01 panel via LVDS. I used one of the existing overlays from the /boot/overlays/ folder and tried to adapt it to my panel. After several attempts, I'm still having the problem that simple images (login screen and normal desktop) work. However, when I have a window or the black terminal on the screen, the panel starts flickering, or black/colored stripes appear. I think there might be something wrong with the timing values or LVDS settings. What is worng with the LVDS settings? Can anyone help me? mipi2lvds2_G156HCE_L01.dts Edited March 3 by Chris_ Share this post Link to post Share on other sites
Owen Chen 0 Posted March 4 Hi Chris, Thank you for choosing our product. To help us better analyze the situation, could you please let us know which operating system and version you are currently using? For example, you can usually retrieve this information by running the following commands in your terminal: $cat /etc/version $cat /etc/os-release We look forward to your reply so we can assist you further. Share this post Link to post Share on other sites
Chris_ 0 Posted March 4 Thanks for the reply, I got Debian from https://tinker-board.asus.com/download.html#os Here is the screenshot of the command output: Share this post Link to post Share on other sites
Owen Chen 0 Posted March 4 Hi Chris, Thank you for the information. You mentioned using an overlay from the /boot/overlays/ folder. Could you let us know where this specific .dts file originated from? We are asking because we actually do not include this file in our official release, and we do not support the G156HCE-L01 panel on our Debian system. Share this post Link to post Share on other sites
Chris_ 0 Posted March 4 Update. Hi Owen Chen, The original dts file is the file for mipi2lvds2_G156HAN02.dts , I've tweaked the timings a bit. I found the problem: the LVDS power supply from the ThinkBoard (3.3V) drops below 3.1V under panel load. The panel requires 3.15V to 3.6V, which is causing the image distortion. The panel works perfectly with an external power supply. Do you know the maximum current the ThinkBoard can deliver at its LVDS output? Or is there a solution for this? Share this post Link to post Share on other sites
