diff --git a/external/subpack/libs/serdisplib/patches/002-allow-1bpp-framebuffer.patch b/external/subpack/libs/serdisplib/patches/002-allow-1bpp-framebuffer.patch
new file mode 100644
index 0000000..ada4281
--- /dev/null
+++ b/external/subpack/libs/serdisplib/patches/002-allow-1bpp-framebuffer.patch
@@ -0,0 +1,21 @@
+--- a/src/serdisp_specific_framebuffer.c
++++ b/src/serdisp_specific_framebuffer.c
+@@ -312,13 +312,15 @@ serdisp_t* serdisp_framebuffer_setup(con
+ 
+     if (fb_success) {
+       /* check if colour mode is supported */
+-      if (! (vinfo.bits_per_pixel == 16 || vinfo.bits_per_pixel == 24 || vinfo.bits_per_pixel == 32) ) {
++      if (! (vinfo.bits_per_pixel == 1 ||vinfo.bits_per_pixel == 16 || vinfo.bits_per_pixel == 24 || vinfo.bits_per_pixel == 32) ) {
+         sd_error(SERDISP_ERUNTIME, "unsupported colour depth (%d)", vinfo.bits_per_pixel);
+         fb_success = 0;
+       }
+     }
+-
+-    dd->scrbuf_size = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel/8;
++    if (vinfo.bits_per_pixel == 1)
++        dd->scrbuf_size = (vinfo.xres * vinfo.yres) / 8;
++    else
++        dd->scrbuf_size = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel/8;
+ 
+     if (fb_success) {
+       /* map framebuffer device to memory */