drm/edid: Fix the HDTV hack. (a0910c8e) · Commits · 戴 / test

Standard timings don't let you say 1366. Both 1360 and 1368 have been seen in the wild. So invent a CVT timing for it. CVT will round 1366 up to 1368; we'll then manually underscan it. Split this into two parts, since we need to do something sneaky between them in the future. Signed-off-by:

Adam Jackson <ajax@redhat.com> Signed-off-by:

Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_edid.c

+13 −3

Original line number	Diff line number	Diff line
		@@ -765,15 +765,25 @@ struct drm_display_mode drm_mode_std(struct drm_device dev,
		vsize = (hsize * 4) / 5;
		else
		vsize = (hsize * 9) / 16;
		/* HDTV hack */
		if (hsize == 1360 && vsize == 765 && vrefresh_rate == 60) {
		mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,

		/* HDTV hack, part 1 */
		if (vrefresh_rate == 60 &&
		((hsize == 1360 && vsize == 765) \|\|
		(hsize == 1368 && vsize == 769))) {
		hsize = 1366;
		vsize = 768;
		}

		/* HDTV hack, part 2 */
		if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
		mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
		false);
		mode->hdisplay = 1366;
		mode->vsync_start = mode->vsync_start - 1;
		mode->vsync_end = mode->vsync_end - 1;
		return mode;
		}

		mode = NULL;
		/* check whether it can be found in default mode table */
		mode = drm_find_dmt(dev, hsize, vsize, vrefresh_rate);

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