diff options
| -rw-r--r-- | edid-decode.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/edid-decode.c b/edid-decode.c index 815e26a..7aaeace 100644 --- a/edid-decode.c +++ b/edid-decode.c @@ -40,6 +40,7 @@ enum { EDID_PAGE_SIZE = 128u }; +static int edid_minor = 0; static int claims_one_point_oh = 0; static int claims_one_point_two = 0; static int claims_one_point_three = 0; @@ -2359,6 +2360,7 @@ int main(int argc, char **argv) printf("Claims > 1.4, assuming 1.4 conformance\n"); edid[0x13] = 4; } + edid_minor = edid[0x13]; switch (edid[0x13]) { case 4: claims_one_point_four = 1; @@ -2611,10 +2613,10 @@ int main(int argc, char **argv) !has_name_descriptor || !name_descriptor_terminated || !has_preferred_timing || - !has_range_descriptor) + (!claims_one_point_four && !has_range_descriptor)) conformant = 0; if (!conformant) - printf("EDID block does NOT conform to EDID 1.3!\n"); + printf("EDID block does NOT conform to EDID 1.%d!\n", edid_minor); if (nonconformant_srgb_chromaticity) printf("\tsRGB is signaled, but the chromaticities do not match\n"); if (nonconformant_digital_display) @@ -2667,7 +2669,14 @@ int main(int argc, char **argv) min_hor_freq_hz < mon_min_hor_freq_hz || max_hor_freq_hz > mon_max_hor_freq_hz || max_pixclk_khz > mon_max_pixclk_khz)) { - conformant = 0; + /* + * EDID 1.4 states (in an Errata) that explicitly defined + * timings supersede the monitor range definition. + */ + if (!claims_one_point_four) + conformant = 0; + else + printf("Warning: "); printf("One or more of the timings is out of range of the Monitor Ranges:\n"); printf(" Vertical Freq: %d - %d Hz\n", min_vert_freq_hz, max_vert_freq_hz); printf(" Horizontal Freq: %d - %d Hz\n", min_hor_freq_hz, max_hor_freq_hz); |