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dwm-xinerama-monitors-xorder-6.4.diff (1047B)

      1 --- a/dwm.c	2025-07-14 22:37:49.738597862 +0800
      2 +++ b/dwm.c	2025-07-14 22:37:08.706035689 +0800
      3 @@ -1864,6 +1864,16 @@ updateclientlist()
      4  				(unsigned char *) &(c->win), 1);
      5  }
      6  
      7 +#ifdef XINERAMA
      8 +// Custom comparator: sort monitors by x_org to match physical layout left-to-right
      9 +static int
     10 +compare_xinerama_x(const void *a, const void *b) {
     11 +	const XineramaScreenInfo *sa = (const XineramaScreenInfo *)a;
     12 +	const XineramaScreenInfo *sb = (const XineramaScreenInfo *)b;
     13 +	return sa->x_org - sb->x_org;
     14 +}
     15 +#endif /* XINERAMA */
     16 +
     17  int
     18  updategeom(void)
     19  {
     20 @@ -1880,6 +1890,8 @@ updategeom(void)
     21  		for (n = 0, m = mons; m; m = m->next, n++);
     22  		/* only consider unique geometries as separate screens */
     23  		unique = ecalloc(nn, sizeof(XineramaScreenInfo));
     24 +		// Sort monitors by x_org so dwm handles screens in left-to-right order
     25 +		qsort(info, nn, sizeof(XineramaScreenInfo), compare_xinerama_x);
     26  		for (i = 0, j = 0; i < nn; i++)
     27  			if (isuniquegeom(unique, j, &info[i]))
     28  				memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));