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发表于 2023-8-9 13:00:44
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看来大概率是主板bios的锅了,4K以下的edid大小应该256字节,4K以上的edid大小是512字节,扩展信息(displayid)在后256字节,初始化分辨率不正常的,应该是后256字节没有读取造成的?
而nvidia有一个displayid的固件补丁,是用于修正bios及引导界面黑屏,这个补丁应该就是让显卡正确读取后256字节的edid信息?
附上sutdio display的edid信息:- edid-decode (hex):00 ff ff ff ff ff ff 00 06 10 3a ae e9 88 db 0807 20 01 04 c5 3c 21 78 00 0f 91 ae 52 43 b0 260f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 0101 01 01 01 01 01 b7 ce 00 50 f0 70 5a 80 08 20c8 00 53 4f 21 00 00 1a d0 5c 00 50 a0 a0 3c 5008 20 e8 08 53 4f 21 00 00 1a bc 34 80 50 70 382d 40 08 20 f8 04 53 4f 21 00 00 1a 00 00 00 fc00 53 74 75 64 69 6f 44 69 73 70 6c 61 79 03 3602 03 0f 80 e3 05 00 00 e6 06 01 01 73 73 00 70bc 00 78 a0 40 78 b0 08 20 a8 08 00 00 00 00 001a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1270 12 79 00 00 29 00 10 9f ed d1 90 92 5f 49 a380 fb dd 73 f3 5d 83 99 01 00 0c 40 17 14 0d 0014 40 0b 10 78 4e bb 7f 81 07 00 10 fa 04 01 0000 12 00 16 82 10 00 00 ff 09 3f 0b 00 00 00 0000 41 50 50 3b ae e9 88 db 08 7e 00 05 3a 02 9281 00 7e 00 10 00 10 fa 05 01 01 00 60 c0 d2 ff55 00 10 00 10 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 af 9070 12 79 00 00 03 00 14 9f 6d 01 84 ff 13 4f 0007 80 1f 00 3f 0b 77 00 69 00 07 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0000 00 00 00 00 00 00 00 00 00 00 00 00 00 95 90----------------Block 0, Base EDID: EDID Structure Version & Revision: 1.4 Vendor & Product Identification: Manufacturer: APP Model: 44602 Serial Number: 148605161 Made in: week 7 of 2022 Basic Display Parameters & Features: Digital display Bits per primary color channel: 12 DisplayPort interface Maximum image size: 60 cm x 33 cm Gamma: 2.20 Supported color formats: RGB 4:4:4 First detailed timing does not include the native pixel format and preferred refresh rate Color Characteristics: Red : 0.6796, 0.3203 Green: 0.2646, 0.6904 Blue : 0.1503, 0.0595 White: 0.3125, 0.3291 Established Timings I & II: none Standard Timings: none Detailed Timing Descriptors: DTD 1: 3840x2160 59.999 Hz 16:9 134.997 kHz 529.190 MHz (595 mm x 335 mm) Hfront 8 Hsync 32 Hback 40 Hpol P Vfront 12 Vsync 8 Vback 70 Vpol N DTD 2: 2560x1440 60.000 Hz 16:9 90.000 kHz 237.600 MHz (595 mm x 335 mm) Hfront 8 Hsync 32 Hback 40 Hpol P Vfront 46 Vsync 8 Vback 6 Vpol N DTD 3: 1920x1080 60.000 Hz 16:9 67.500 kHz 135.000 MHz (595 mm x 335 mm) Hfront 8 Hsync 32 Hback 40 Hpol P Vfront 31 Vsync 8 Vback 6 Vpol N Display Product Name: 'StudioDisplay' Extension blocks: 3Checksum: 0x36----------------Block 1, CTA-861 Extension Block: Revision: 3 Underscans IT Video Formats by default Native detailed modes: 0 Colorimetry Data Block: HDR Static Metadata Data Block: Electro optical transfer functions: Traditional gamma - SDR luminance range Supported static metadata descriptors: Static metadata type 1 Desired content max luminance: 115 (603.666 cd/m^2) Desired content max frame-average luminance: 115 (603.666 cd/m^2) Desired content min luminance: 0 (0.000 cd/m^2) Detailed Timing Descriptors: DTD 4: 2560x2880 60.000 Hz 8:9 180.000 kHz 482.400 MHz Hfront 8 Hsync 32 Hback 80 Hpol P Vfront 42 Vsync 8 Vback 70 Vpol NChecksum: 0x12----------------Block 2, DisplayID Extension Block: Version: 1.2 Extension Count: 0 Display Product Type: Extension Section ContainerID Data Block: 9fedd190-925f-49a3-80fb-dd73f35d8399 Display Parameters Data Block (0x01): Image size: 595.2 mm x 334.8 mm Pixels: 5120 x 2880 Feature support flags: Power management (DPM) Gamma: 2.20 Aspect ratio: 1.78 Dynamic bpc native: 12 Dynamic bpc overall: 12 Vendor-Specific Data Block (Apple): 00 10 fa 04 01 00 00 '.......' Tiled Display Topology Data Block (0x12): Capabilities: Behavior if it is the only tile: Image is scaled to fit the entire tiled display Behavior if more than one tile and fewer than total number of tiles: Undefined Tiled display consists of a single physical display enclosure Num horizontal tiles: 2 Num vertical tiles: 1 Tile location: 0, 0 Tile resolution: 2560x2880 Tiled Display Manufacturer/Vendor ID: APP Tiled Display Product ID Code: 44603 Tiled Display Serial Number: 148605161 Unknown DisplayID Data Block (0x7e): 3a 02 92 81 00 ':....' Unknown DisplayID Data Block (0x7e): 00 10 fa 05 01 01 00 60 c0 d2 ff 55 00 10 00 10 '.......`...U....' Checksum: 0xafChecksum: 0x90----------------Block 3, DisplayID Extension Block: Version: 1.2 Extension Count: 0 Video Timing Modes Type 1 - Detailed Timings Data Block: DTD: 5120x2880 60.000 Hz 16:9 180.000 kHz 936.000 MHz (aspect 16:9, no 3D stereo, preferred) Hfront 8 Hsync 32 Hback 40 Hpol P Vfront 106 Vsync 8 Vback 6 Vpol N Checksum: 0x95Checksum: 0x90
复制代码- BCDedit /set HIGHESTMODE 1
复制代码 另外,windows下使用bcdedit命令,可以将开机界面设置到4k分辨率,只是主板logo会到左上角, GRUB或者其他黑苹果引导工具可设置的最高分辨率也是4k,这个分辨率跟edid信息的Block 0里的数据吻合。。。 |
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