Tôi đã cắm bảng vào màn hình của mình dưới dạng đầu vào HDMI. Tôi có thể truy cập vào máy tính để bàn Raspbian bằng cách bỏ ghi chú "hdmi_safe = 1" trong config.txt. Tuy nhiên, tôi muốn làm việc ở độ phân giải không làm cho mắt tôi bị chảy máu, vì vậy tôi đã cố gắng trong vài ngày qua để tìm các cài đặt chính xác trong config.txt và tôi đã bỏ cuộc. Bất kỳ sự trợ giúp nào đều sẽ là tuyệt vời. Tôi đã thử một vài chế độ, nhưng dù cố gắng thế nào tôi cũng không nhận được hình ảnh nào và những điều sau đây từ tvservice -s:
pi@raspberrypi ~ $ /opt/vc/bin/tvservice -s
state: HPD low|HDMI off|NTSC mode|composite CP off (0x140001), 720x480 @ 60Hz, interlaced
Tôi cần thực hiện những bước nào để khắc phục vấn đề này? Cảm ơn trong nâng cao. Màn hình trong câu hỏi là một Acer H243HX.
Đây là kết quả của tôi để thử nghiệm CEA:
pi@raspberrypi ~ $ /opt/vc/bin/tvservice -m CEA
Group CEA has 0 modes:
Đây là kết quả của tôi để thử nghiệm DMT:
pi@raspberrypi ~ $ /opt/vc/bin/tvservice -m DMT
Group DMT has 0 modes:
Đây là đầu ra trình phân tích cú pháp edid của tôi:
Parsing edid.dat...
HDMI:EDID version 1.3, 1 extensions, screen size 53x29 cm
HDMI:EDID features - videodef 0x80 standby suspend active off; colour encoding:RGB444|YCbCr422; sRGB is not default colourspace; preferred format is native; does not support GTF
HDMI:EDID found monitor name descriptor tag 0xfc
HDMI:EDID monitor name is H243H
HDMI:EDID found monitor range descriptor tag 0xfd
HDMI:EDID monitor range offsets: V min=0, V max=0, H min=0, H max=0
HDMI:EDID monitor range: vertical is 56-76 Hz, horizontal is 31-83 kHz, max pixel clock is 180 MHz
HDMI:EDID monitor range does not support GTF
HDMI:EDID found monitor S/N descriptor tag 0xff
HDMI:EDID found unknown detail timing format: 1920x1080p hfp:48 hs:32 hbp:80 vfp:3 vs:5 vbp:23 pixel clock:138 MHz
HDMI:EDID established timing I/II bytes are AF CF 00
HDMI:EDID found DMT format: code 4, 640x480p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 5, 640x480p @ 72 Hz in established timing I/II
HDMI:EDID found DMT format: code 6, 640x480p @ 75 Hz in established timing I/II
HDMI:EDID found DMT format: code 8, 800x600p @ 56 Hz in established timing I/II
HDMI:EDID found DMT format: code 9, 800x600p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 10, 800x600p @ 72 Hz in established timing I/II
HDMI:EDID found DMT format: code 11, 800x600p @ 75 Hz in established timing I/II
HDMI:EDID found DMT format: code 16, 1024x768p @ 60 Hz in established timing I/II
HDMI:EDID found DMT format: code 17, 1024x768p @ 70 Hz in established timing I/II
HDMI:EDID found DMT format: code 18, 1024x768p @ 75 Hz in established timing I/II
HDMI:EDID found DMT format: code 36, 1280x1024p @ 75 Hz in established timing I/II
HDMI:EDID standard timings block x 8: 0x8180 714F 9500 950F A940 B300 0101 0101
HDMI:EDID found DMT format: code 35, 1280x1024p @ 60 Hz (5:4) in standard timing 0
HDMI:EDID found DMT format: code 21, 1152x864p @ 75 Hz (4:3) in standard timing 1
HDMI:EDID found DMT format: code 47, 1440x900p @ 60 Hz (16:10) in standard timing 2
HDMI:EDID found DMT format: code 48, 1440x900p @ 75 Hz (16:10) in standard timing 3
HDMI:EDID found DMT format: code 51, 1600x1200p @ 60 Hz (4:3) in standard timing 4
HDMI:EDID found DMT format: code 58, 1680x1050p @ 60 Hz (16:10) in standard timing 5
HDMI:EDID parsing v3 CEA extension 0
HDMI:EDID monitor support - underscan IT formats:yes, basic audio:yes, yuv444:yes, yuv422:yes, #native DTD:2
HDMI:EDID found preferred CEA detail timing format: 720x480p @ 60 Hz (2)
HDMI:EDID found CEA detail timing format: 1280x720p @ 60 Hz (4)
HDMI:EDID found CEA detail timing format: 1920x1080i @ 60 Hz (5)
HDMI:EDID found CEA detail timing format: 1280x720p @ 50 Hz (19)
HDMI:EDID found CEA detail timing format: 1920x1080i @ 50 Hz (20)
HDMI:EDID found audio format 2 channels PCM, sample rate: 32|44|48|88|96|176|192 kHz, sample size: 16|20|24 bits
HDMI:EDID found CEA format: code 1, 640x480p @ 60Hz
HDMI:EDID found CEA format: code 2, 720x480p @ 60Hz
HDMI:EDID found CEA format: code 3, 720x480p @ 60Hz
HDMI:EDID found CEA format: code 4, 1280x720p @ 60Hz (native)
HDMI:EDID found CEA format: code 5, 1920x1080i @ 60Hz
HDMI:EDID found CEA format: code 6, 1440x480i @ 60Hz
HDMI:EDID found CEA format: code 7, 1440x480i @ 60Hz
HDMI:EDID found CEA format: code 16, 1920x1080p @ 60Hz
HDMI:EDID found CEA format: code 17, 720x576p @ 50Hz
HDMI:EDID found CEA format: code 18, 720x576p @ 50Hz
HDMI:EDID found CEA format: code 21, 1440x576i @ 50Hz
HDMI:EDID found CEA format: code 19, 1280x720p @ 50Hz (native)
HDMI:EDID found CEA format: code 31, 1920x1080p @ 50Hz
HDMI:EDID found CEA format: code 20, 1920x1080i @ 50Hz
HDMI:EDID found HDMI VSDB length 6
HDMI:EDID HDMI VSDB has physical address 1.0.0.0
HDMI:EDID HDMI VSDB supports AI:no, dual link DVI:no
HDMI:EDID HDMI VSDB deep colour support - 48-bit:no 36-bit:no 30-bit:yes DC_yuv444:no
HDMI:EDID HDMI VSDB has no latency information
HDMI:EDID filtering formats with pixel clock > 162 MHz or h. blanking
> 1023
HDMI:EDID best score mode is now CEA (1) 640x480p @ 60 Hz with pixel clock 25 MHz (score 136864)
HDMI:EDID best score mode is now CEA (2) 720x480p @ 60 Hz with pixel clock 27 MHz (score 5162208)
HDMI:EDID CEA mode (3) 720x480p @ 60 Hz with pixel clock 27 MHz has a score of 141472
HDMI:EDID CEA mode (4) 1280x720p @ 60 Hz with pixel clock 74 MHz has a score of 4765888
HDMI:EDID DMT mode (4) 640x480p @ 60 Hz with pixel clock 25 MHz has a score of 18432
HDMI:EDID CEA mode (5) 1920x1080i @ 60 Hz with pixel clock 74 MHz has a score of 4348832
HDMI:EDID DMT mode (5) 640x480p @ 72 Hz with pixel clock 31 MHz has a score of 22118
HDMI:EDID CEA mode (6) 1440x480i @ 60 Hz with pixel clock 27 MHz has a score of 120736
HDMI:EDID DMT mode (6) 640x480p @ 75 Hz with pixel clock 31 MHz has a score of 23040
HDMI:EDID CEA mode (7) 1440x480i @ 60 Hz with pixel clock 27 MHz has a score of 120736
HDMI:EDID DMT mode (8) 800x600p @ 56 Hz with pixel clock 36 MHz has a score of 26880
HDMI:EDID DMT mode (9) 800x600p @ 60 Hz with pixel clock 40 MHz has a score of 28800
HDMI:EDID DMT mode (10) 800x600p @ 72 Hz with pixel clock 50 MHz has a score of 34560
HDMI:EDID DMT mode (11) 800x600p @ 75 Hz with pixel clock 49 MHz has a score of 36000
HDMI:EDID CEA mode (16) 1920x1080p @ 60 Hz with pixel clock 148 MHz has a score of 348832
HDMI:EDID DMT mode (16) 1024x768p @ 60 Hz with pixel clock 65 MHz has a score of 47185
HDMI:EDID CEA mode (17) 720x576p @ 50 Hz with pixel clock 27 MHz has a score of 141472
HDMI:EDID DMT mode (17) 1024x768p @ 70 Hz with pixel clock 75 MHz has a score of 55050
HDMI:EDID CEA mode (18) 720x576p @ 50 Hz with pixel clock 27 MHz has a score of 141472
HDMI:EDID DMT mode (18) 1024x768p @ 75 Hz with pixel clock 78 MHz has a score of 58982
HDMI:EDID CEA mode (19) 1280x720p @ 50 Hz with pixel clock 74 MHz has a score of 3738240
HDMI:EDID CEA mode (20) 1920x1080i @ 50 Hz with pixel clock 74 MHz has a score of 3307360
HDMI:EDID CEA mode (21) 1440x576i @ 50 Hz with pixel clock 27 MHz has a score of 120736
HDMI:EDID DMT mode (21) 1152x864p @ 75 Hz with pixel clock 108 MHz has a score of 174649
HDMI:EDID CEA mode (31) 1920x1080p @ 50 Hz with pixel clock 148 MHz has a score of 307360
HDMI:EDID DMT mode (35) 1280x1024p @ 60 Hz with pixel clock 108 MHz has a score of 178643
HDMI:EDID DMT mode (36) 1280x1024p @ 75 Hz with pixel clock 135 MHz has a score of 98304
HDMI:EDID DMT mode (47) 1440x900p @ 60 Hz with pixel clock 106 MHz has a score of 177760
HDMI:EDID DMT mode (48) 1440x900p @ 75 Hz with pixel clock 136 MHz has a score of 197200
HDMI:EDID DMT mode (51) 1600x1200p @ 60 Hz with pixel clock 162 MHz has a score of 215200
HDMI:EDID DMT mode (58) 1680x1050p @ 60 Hz with pixel clock 146 MHz has a score of 205840
HDMI:EDID preferred mode remained as CEA (2) 720x480p @ 60 Hz with pixel clock 27 MHz
HDMI:EDID has HDMI support and audio support edid_parser exited with code 0