Φίλε Portioli σε ευχαριστώ.
Νομίζω πάντως πως έχεις κάποιο λαθάκι όσον αφορά στο HDMI, το οποίο ορίζει αυτό που ανέφερα.
Σύμφωνα με το HDMI Spec 1.3a, κεφάλαιο 6.6 (σελ. 95) :
6.6 Video Quantization Ranges
Black and white levels for video components shall be either “Full Range” or “Limited Range.”
YCBCR components shall always be Limited Range while RGB components may be either Full
Range or Limited Range. While using RGB, Limited Range shall be used for all video formats
defined in CEA-861-D, with the exception of VGA (640x480) format, which requires Full Range.
(όπου CEA: Consumer Electronics Association)
Τα δε video formats του CEA-861-D είναι τα εξής:
Code Short Aspect Name Ratio HxV @ F
1 DMT0659 4:3 640x480p @ 59.94/60Hz
2 480p 4:3 720x480p @ 59.94/60Hz
3 480pH 16:9 720x480p @ 59.94/60Hz
4 720p 16:9 1280x720p @ 59.94/60Hz
5 1080i 16:9 1920x1080i @ 59.94/60Hz
6 480i 4:3 720(1440)x480i @ 59.94/60Hz
7 480iH 16:9 720(1440)x480i @ 59.94/60Hz
8 240p 4:3 720(1440)x240p @ 59.94/60Hz
9 240pH 16:9 720(1440)x240p @ 59.94/60Hz
10 480i4x 4:3 (2880)x480i @ 59.94/60Hz
11 480i4xH 16:9 (2880)x480i @ 59.94/60Hz
12 240p4x 4:3 (2880)x240p @ 59.94/60Hz
13 240p4xH 16:9 (2880)x240p @ 59.94/60Hz
14 480p2x 4:3 1440x480p @ 59.94/60Hz
15 480p2xH 16:9 1440x480p @ 59.94/60Hz
16 1080p 16:9 1920x1080p @ 59.94/60Hz
17 576p 4:3 720x576p @ 50Hz
18 576pH 16:9 720x576p @ 50Hz
19 720p50 16:9 1280x720p @ 50Hz
20 1080i25 16:9 1920x1080i @ 50Hz*
21 576i 4:3 720(1440)x576i @ 50Hz
22 576iH 16:9 720(1440)x576i @ 50Hz
23 288p 4:3 720(1440)x288p @ 50Hz
24 288pH 16:9 720(1440)x288p @ 50Hz
25 576i4x 4:3 (2880)x576i @ 50Hz
26 576i4xH 16:9 (2880)x576i @ 50Hz
27 288p4x 4:3 (2880)x288p @ 50Hz
28 288p4xH 16:9 (2880)x288p @ 50Hz
29 576p2x 4:3 1440x576p @ 50Hz
30 576p2xH 16:9 1440x576p @ 50Hz
31 1080p50 16:9 1920x1080p @ 50Hz
32 1080p24 16:9 1920x1080p @ 23.98/24Hz (αυτό που κυρίως μας ενδιαφέρει)
33 1080p25 16:9 1920x1080p @ 25Hz
34 1080p30 16:9 1920x1080p @ 29.97/30Hz
35 480p4x 4:3 (2880)x480p @ 59.94/60Hz
36 480p4xH 16:9 (2880)x480p @ 59.94/60Hz
37 576p4x 4:3 (2880)x576p @ 50Hz
38 576p4xH 16:9 (2880)x576p @ 50Hz
39 1080i25 16:9 1920x1080i(1250 Total) @ 50Hz*
40 1080i50 16:9 1920x1080i @ 100Hz
41 720p100 16:9 1280x720p @ 100Hz
42 576p100 4:3 720x576p @ 100Hz
43 576p100H 16:9 720x576p @ 100Hz
44 576i50 4:3 720(1440)x576i @ 100Hz
45 576i50H 16:9 720(1440)x576i @ 100Hz
46 1080i60 16:9 1920x1080i @ 119.88/120Hz
47 720p120 16:9 1280x720p @ 119.88/120Hz
48 480p119 4:3 720x480p @ 119.88/120Hz
49 480p119H 16:9 720x480p @ 119.88/120Hz
50 480i59 4:3 720(1440)x480i @ 119.88/120Hz
51 480i59H 16:9 720(1440)x480i @ 119.88/120Hz
52 576p200 4:3 720x576p @ 200Hz
53 576p200H 16:9 720x576p @ 200Hz
54 576i100 4:3 720(1440)x576i @ 200Hz
55 576i100H 16:9 720(1440)x576i @ 200Hz
56 480p239 4:3 720x480p @ 239.76/240Hz
57 480p239H 16:9 720x480p @ 239.76/240Hz
58 480i119 4:3 720(1440)x480i @ 239.76/240Hz
59 480i119H 16:9 720(1440)x480i @ 239.76/240Hz
Τα κάτωθι προστέθηκαν με το CEA-861-E το οποίο αφορά το HDMI ver 1.4
60 720p24 16:9 1280x720p @ 23.98/24Hz
61 720p25 16:9 1280x720p @ 25Hz
62 720p30 16:9 1280x720p @ 29.97/30Hz
63 1080p120 16:9 1920x1080p @ 119.88/120Hz
Οπότε η intel, όπως και η nvidia, ακολουθούν αυτόν τον κανόνα, αν και οι χρήστες εδώ και χρόνια ζητούν επίμονα να παρακάμπτεται από την επιλογή στα settings του driver. Νομίζω πως στην ati/amd έχουν κάνει αυτήν την παρατυπία και ισχύει η επιλογή του χρήστη.
Πηγές:
http://www.microprocessor.org/HDMISpecification13a.pdf
http://en.wikipedia.org/wiki/Extend...A_EDID_Timing_Extension_Version_3_data_format
Συγνώμη για τις υπερβάλλουσες ίσως τεχνικές λεπτομέρειες...