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Commit 7064fef5 authored by Jesse Barnes's avatar Jesse Barnes Committed by Dave Airlie
Browse files

drm: work around EDIDs with bad htotal/vtotal values 



We did this on the userspace side, but we need a similar fix for the
kernel.

Fixes LP #460664.

Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@kernel.org
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 0ebf1717

drivers/gpu/drm/drm_edid.c

+6 −0
Original line number Diff line number Diff line
@@ -662,6 +662,12 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, 
		return NULL;

	}



	/* Some EDIDs have bogus h/vtotal values */

	if (mode->hsync_end > mode->htotal)

		mode->htotal = mode->hsync_end + 1;

	if (mode->vsync_end > mode->vtotal)

		mode->vtotal = mode->vsync_end + 1;



	drm_mode_set_name(mode);



	if (pt->misc & DRM_EDID_PT_INTERLACED)