I'm trying to figure out the characteristics of the display on my Asus
Vivobook S notebook.
One way to figure this out is to look at the monitor's EDID
(Extended Display Identification Data).
I installed a program called edid-decode since otherwise the EDID is just
binary bytes.
Then I used this command:
edid-decode /sys/class/drm/card1-eDP-1/edid | less
The path is to one of the edid's exposed by the Linux kernel. I picked
eDP because that should be the built-in display.
I've included to result at the end of this message.
Things I noted
- manufacturer is SDC (Samsung Display Company)
- manufactured in the 25th week of 2021 (older than I thought)
- bits / color channel: 10 (very nice)
- only color format: RGB 4:4:4
That means no chroma subsampling but RGB doesn't support chroma
subsampling anyway
================ EDID ================
edid-decode (hex):
00 ff ff ff ff ff ff 00 4c 83 6d 41 00 00 00 00
19 1f 01 04 b5 1f 14 78 02 0c f1 ae 52 3c b9 23
0c 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 39 ff 40 5c b0 08 20 70 14 20
08 04 38 c3 10 00 00 1b 39 ff 40 5c b0 08 48 77
14 20 08 04 38 c3 10 00 00 1b 00 00 00 0f 00 ff
0a 78 ff 0a 3c 28 80 02 00 00 00 00 00 00 00 fe
00 41 54 4e 41 34 35 41 46 30 31 2d 30 20 01 72
02 03 0f 00 e3 05 80 00 e6 06 05 01 74 60 07 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b7
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: SDC
Model: 16749
Made in: week 25 of 2021
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 10
DisplayPort interface
Maximum image size: 31 cm x 20 cm
Gamma: 2.20
Supported color formats: RGB 4:4:4
First detailed timing includes the native pixel format and preferred
refresh rate
Color Characteristics:
Red : 0.6796, 0.3203
Green: 0.2373, 0.7226
Blue : 0.1396, 0.0498
White: 0.3125, 0.3291
Established Timings I & II: none
Standard Timings: none
Detailed Timing Descriptors:
DTD 1: 2880x1800 120.001014 Hz 16:10 219.842 kHz 653.370000 MHz
(312 mm x 195 mm)
Hfront 20 Hsync 32 Hback 40 Hpol P
Vfront 16 Vsync 8 Vback 8 Vpol N
DTD 2: 2880x1800 60.000507 Hz 16:10 219.842 kHz 653.370000 MHz
(312 mm x 195 mm)
Hfront 20 Hsync 32 Hback 40 Hpol P
Vfront 16 Vsync 8 Vback 1840 Vpol N
Manufacturer-Specified Display Descriptor (0x0f): 00 0f 00 ff 0a 78 ff 0a
3c 28 80 02 00 00 00 00 '.....x..<(......'
Alphanumeric Data String: 'ATNA45AF01-0 '
Extension blocks: 1
Checksum: 0x72
----------------
Block 1, CTA-861 Extension Block:
Revision: 3
Native detailed modes: 0
Colorimetry Data Block:
BT2020RGB
HDR Static Metadata Data Block:
Electro optical transfer functions:
Traditional gamma - SDR luminance range
SMPTE ST2084
Supported static metadata descriptors:
Static metadata type 1
Desired content max luminance: 116 (616.884 cd/m^2)
Desired content max frame-average luminance: 96 (400.000 cd/m^2)
Desired content min luminance: 7 (0.005 cd/m^2)
Checksum: 0xb7 Unused space in Extension Block: 112 bytes
---
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