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xorg-server:

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- add patch from debian to fix some EDID aspect ratio issues
This commit is contained in:
Stephan Raue 2009-09-28 14:39:35 +02:00
parent 0e1ad0dc32
commit d25fcf4d69
1 changed files with 61 additions and 0 deletions
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61
packages/x11/xserver/xorg-server/patches/164_trap-aspect-ratios.diff Normal file
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@ -0,0 +1,61 @@
diff --git a/hw/xfree86/ddc/interpret_edid.c b/hw/xfree86/ddc/interpret_edid.c
index c0e3df9..32288f7 100644
--- a/hw/xfree86/ddc/interpret_edid.c
+++ b/hw/xfree86/ddc/interpret_edid.c
@@ -51,6 +51,15 @@ static void get_whitepoint_section(Uchar *, struct whitePoints *);
static void get_detailed_timing_section(Uchar*, struct detailed_timings *);
static Bool validate_version(int scrnIndex, struct edid_version *);
+static Bool
+is_standard_aspect_ratio(int x, int y)
+{
+ return ((x == 16 && y == 9) ||
+ (x == 16 && y == 10) ||
+ (x == 4 && y == 3) ||
+ (x == 5 && y == 4));
+}
+
static void
handle_edid_quirks(xf86MonPtr m)
{
@@ -91,10 +100,7 @@ handle_edid_quirks(xf86MonPtr m)
* try to find the largest detailed timing that matches that aspect
* ratio and use that to fill in the feature section.
*/
- if ((m->features.hsize == 16 && m->features.vsize == 9) ||
- (m->features.hsize == 16 && m->features.vsize == 10) ||
- (m->features.hsize == 4 && m->features.vsize == 3) ||
- (m->features.hsize == 5 && m->features.vsize == 4)) {
+ if (is_standard_aspect_ratio(m->features.hsize, m->features.vsize)) {
int real_hsize = 0, real_vsize = 0;
float target_aspect, timing_aspect;
@@ -130,6 +136,28 @@ handle_edid_quirks(xf86MonPtr m)
xf86Msg(X_INFO, "Quirked EDID physical size to %dx%d cm\n",
m->features.hsize, m->features.vsize);
}
+
+ /*
+ * Some monitors do the reverse, putting real size in the global block
+ * and aspect ratios in the detailed timings. Check, but only if we
+ * think we've got a real physical size.
+ */
+ if (m->features.hsize && m->features.vsize) {
+ for (i = 0; i < 4; i++) {
+ if (m->det_mon[i].type == DT) {
+ struct detailed_timings *timing;
+ timing = &m->det_mon[i].section.d_timings;
+
+ if (is_standard_aspect_ratio(timing->h_size, timing->v_size)) {
+ timing->h_size = m->features.hsize * 10;
+ timing->v_size = m->features.vsize * 10;
+ xf86Msg(X_INFO, "Quirked timing size to %dx%d mm\n",
+ timing->h_size, timing->v_size);
+
+ }
+ }
+ }
+ }
}
xf86MonPtr