Yes! i find another solution put to comment the line #pragma GCC optimize (3) in ultracd_st7920_u8glib_rrd.h Like : #pragma GCC optimize (3) to //#pragma GCC optimize (3)by jiefel - Sanguino(lolu)
Hello, I bought a CXY card, and all worked great, but after a firmware update MARLIN, I ended up with a display as we see on the attached image, I tested different firmware and I always have the same result and I can not find any solution. Every two seconds there is a refresh but it's never correct. Is a display speed problem? I do not know where to find.by jiefel - Sanguino(lolu)