Attachment 234639 Details for Bug 264632 – a possible patch

[patch] a possible patch

0001-drm-edid-Fix-parsing-of-EDID-1.4-Established-Timings.patch (text/plain), 1.04 KB, created by xiaohuizhang on 2022-06-12 13:05:40 UTC

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Creator: xiaohuizhang

Created: 2022-06-12 13:05:40 UTC

Size: 1.04 KB

patch

obsolete

>From b4b5c78677238bb63aeeb12e369d8cdf914cea9f Mon Sep 17 00:00:00 2001
>From: Xiaohui Zhang <xiaohuizhang@ruc.edu.cn>
>Date: Sun, 12 Jun 2022 21:00:33 +0800
>Subject: [PATCH 1/1] drm/edid: Fix parsing of EDID 1.4 Established Timings III
> descriptor
>
>The EDID 1.4 specification section 3.10.3.9 defines an Established Timings III
>descriptor (tag #F7h). The parsing of this descriptor by drm_est3_modes() is
>off by one byte: the offset of the first timing bitmap is 6, not 5.
>
>Signed-off-by: Xiaohui Zhang <xiaohuizhang@ruc.edu.cn>
>---
> sys/dev/drm2/drm_edid.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/sys/dev/drm2/drm_edid.c b/sys/dev/drm2/drm_edid.c
>index 9ff4ee1d1..ab243195e 100644
>--- a/sys/dev/drm2/drm_edid.c
>+++ b/sys/dev/drm2/drm_edid.c
>@@ -1242,7 +1242,7 @@ drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
> {
> 	int i, j, m, modes = 0;
> 	struct drm_display_mode *mode;
>-	u8 *est = ((u8 *)timing) + 5;
>+	u8 *est = ((u8 *)timing) + 6;
> 
> 	for (i = 0; i < 6; i++) {
> 		for (j = 7; j > 0; j--) {
>-- 
>2.17.1
>

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Attachments on bug 264632: 234639