LattePanda 3 Delta Does Not Recognize HDMI Display

userHead Anegadian 2023-03-28 02:16:26 470 Views1 Replies

I have a LattePanda 3 Delta running Debian. It does not see the display that is connected to the HDMI port, so it runs only in 800x600 resolution. When the display is connected to a Raspberry Pi, the Pi runs at full resolution.

 

xrandr --verbose on the 3 Delta reports:

 

Screen 0: minimum 800 x 600, current 800 x 600, maximum 800 x 600
default connected 800x600+0+0 (0x520) normal (normal) 0mm x 0mm
Identifier: 0x51f
Timestamp:  46270
Subpixel:   unknown
Clones:    
CRTC:       0
CRTCs:      0
Transform:  1.000000 0.000000 0.000000
            0.000000 1.000000 0.000000
            0.000000 0.000000 1.000000
           filter: 
non-desktop: 0 
 supported: 0, 1
 800x600 (0x520) 36.000MHz *current
       h: width   800 start    0 end    0 total  800 skew    0 clock  45.00KHz
       v: height  600 start    0 end    0 total  600           clock  75.00Hz
 

xrandr --verbose with the same monitor on the Raspberry Pi reports:

 

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 7680 x 7680
HDMI-1 connected primary 1920x1080+0+0 (0x48) normal (normal left inverted right x axis y axis) 477mm x 268mm
Identifier: 0x45
Timestamp:  26061
Subpixel:   unknown
Gamma:      1.0:1.0:1.0
Brightness: 1.0
Clones:    
CRTC:       0
CRTCs:      0
Transform:  1.000000 0.000000 0.000000
            0.000000 1.000000 0.000000
            0.000000 0.000000 1.000000
           filter: 
EDID: 
 00ffffffffffff0010ac65a053543431
 2615010380301b78ea81f5a357539f27
 0a5054a54b00714f8180d1c001010101
 010101010101023a801871382d40582c
 4500dd0c1100001e000000ff00595059
 344e31394b313454530a000000fc0044
 454c4c205354323232304c0a000000fd
 00384c1e5311000a2020202020200163
 02031ff14c9005040302071601141f12
 132309070765030c0010008301000002
 3a801871382d40582c4500dd0c110000
 1e011d8018711c1620582c2500dd0c11
 00009e011d007251d01e206e285500dd
 0c1100001e8c0ad08a20e02d10103e96
 00dd0c11000018000000000000000000
 000000000000000000000000000000af
Output format: Automatic 
 supported: Automatic, RGB, YCbCr 4:2:2, YCbCr 4:4:4
Broadcast RGB: Automatic 
 supported: Automatic, Full, Limited 16:235
max bpc: 8 
 range: (8, 12)
bottom margin: 0 
 range: (0, 100)
top margin: 0 
 range: (0, 100)
right margin: 0 
 range: (0, 100)
left margin: 0 
 range: (0, 100)
Colorspace: Default 
 supported: Default, SMPTE_170M_YCC, BT709_YCC, XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, opRGB, BT2020_CYCC, BT2020_RGB, BT2020_YCC, DCI-P3_RGB_D65, DCI-P3_RGB_Theater
link-status: Good 
 supported: Good, Bad
CONNECTOR_ID: 32 
 supported: 32
non-desktop: 0 
 range: (0, 1)
 1920x1080 (0x48) 148.500MHz +HSync +VSync *current +preferred
       h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.50KHz
       v: height 1080 start 1084 end 1089 total 1125           clock  60.00Hz
 1920x1080 (0x49) 148.500MHz +HSync +VSync
       h: width  1920 start 2448 end 2492 total 2640 skew    0 clock  56.25KHz
       v: height 1080 start 1084 end 1089 total 1125           clock  50.00Hz
 1920x1080 (0x4a) 148.352MHz +HSync +VSync
       h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  67.43KHz
       v: height 1080 start 1084 end 1089 total 1125           clock  59.94Hz
 1920x1080i (0x4b) 74.250MHz +HSync +VSync Interlace
       h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  33.75KHz
       v: height 1080 start 1084 end 1094 total 1125           clock  60.00Hz
 1920x1080i (0x4c) 74.250MHz +HSync +VSync Interlace
       h: width  1920 start 2448 end 2492 total 2640 skew    0 clock  28.12KHz
       v: height 1080 start 1084 end 1094 total 1125           clock  50.00Hz
 1920x1080i (0x4d) 74.176MHz +HSync +VSync Interlace
       h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  33.72KHz
       v: height 1080 start 1084 end 1094 total 1125           clock  59.94Hz
 1280x1024 (0x4e) 135.000MHz +HSync +VSync
       h: width  1280 start 1296 end 1440 total 1688 skew    0 clock  79.98KHz
       v: height 1024 start 1025 end 1028 total 1066           clock  75.02Hz
 1280x1024 (0x4f) 108.000MHz +HSync +VSync
       h: width  1280 start 1328 end 1440 total 1688 skew    0 clock  63.98KHz
       v: height 1024 start 1025 end 1028 total 1066           clock  60.02Hz
 1152x864 (0x50) 108.000MHz +HSync +VSync
       h: width  1152 start 1216 end 1344 total 1600 skew    0 clock  67.50KHz
       v: height  864 start  865 end  868 total  900           clock  75.00Hz
 1280x720 (0x51) 74.250MHz +HSync +VSync
       h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  45.00KHz
       v: height  720 start  725 end  730 total  750           clock  60.00Hz
 1280x720 (0x52) 74.250MHz +HSync +VSync
       h: width  1280 start 1720 end 1760 total 1980 skew    0 clock  37.50KHz
       v: height  720 start  725 end  730 total  750           clock  50.00Hz
 1280x720 (0x53) 74.176MHz +HSync +VSync
       h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  44.96KHz
       v: height  720 start  725 end  730 total  750           clock  59.94Hz
 1024x768 (0x54) 78.750MHz +HSync +VSync
       h: width  1024 start 1040 end 1136 total 1312 skew    0 clock  60.02KHz
       v: height  768 start  769 end  772 total  800           clock  75.03Hz
 1024x768 (0x55) 65.000MHz -HSync -VSync
       h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
       v: height  768 start  771 end  777 total  806           clock  60.00Hz
 800x600 (0x56) 49.500MHz +HSync +VSync
       h: width   800 start  816 end  896 total 1056 skew    0 clock  46.88KHz
       v: height  600 start  601 end  604 total  625           clock  75.00Hz
 800x600 (0x57) 40.000MHz +HSync +VSync
       h: width   800 start  840 end  968 total 1056 skew    0 clock  37.88KHz
       v: height  600 start  601 end  605 total  628           clock  60.32Hz
 720x576 (0x58) 27.000MHz -HSync -VSync
       h: width   720 start  732 end  796 total  864 skew    0 clock  31.25KHz
       v: height  576 start  581 end  586 total  625           clock  50.00Hz
 720x576i (0x59) 13.500MHz -HSync -VSync Interlace
       h: width   720 start  732 end  795 total  864 skew    0 clock  15.62KHz
       v: height  576 start  580 end  586 total  625           clock  50.00Hz
 720x480 (0x5a) 27.027MHz -HSync -VSync
       h: width   720 start  736 end  798 total  858 skew    0 clock  31.50KHz
       v: height  480 start  489 end  495 total  525           clock  60.00Hz
 720x480 (0x5b) 27.000MHz -HSync -VSync
       h: width   720 start  736 end  798 total  858 skew    0 clock  31.47KHz
       v: height  480 start  489 end  495 total  525           clock  59.94Hz
 720x480i (0x5c) 13.514MHz -HSync -VSync Interlace
       h: width   720 start  739 end  801 total  858 skew    0 clock  15.75KHz
       v: height  480 start  488 end  494 total  525           clock  60.00Hz
 720x480i (0x5d) 13.500MHz -HSync -VSync Interlace
       h: width   720 start  739 end  801 total  858 skew    0 clock  15.73KHz
       v: height  480 start  488 end  494 total  525           clock  59.94Hz
 640x480 (0x5e) 31.500MHz -HSync -VSync
       h: width   640 start  656 end  720 total  840 skew    0 clock  37.50KHz
       v: height  480 start  481 end  484 total  500           clock  75.00Hz
 640x480 (0x5f) 25.200MHz -HSync -VSync
       h: width   640 start  656 end  752 total  800 skew    0 clock  31.50KHz
       v: height  480 start  490 end  492 total  525           clock  60.00Hz
 640x480 (0x60) 25.175MHz -HSync -VSync
       h: width   640 start  656 end  752 total  800 skew    0 clock  31.47KHz
       v: height  480 start  490 end  492 total  525           clock  59.94Hz
 720x400 (0x61) 28.320MHz -HSync +VSync
       h: width   720 start  738 end  846 total  900 skew    0 clock  31.47KHz
       v: height  400 start  412 end  414 total  449           clock  70.08Hz
HDMI-2 disconnected (normal left inverted right x axis y axis)
Identifier: 0x46
Timestamp:  26061
Subpixel:   unknown
Clones:    
CRTCs:      4
Transform:  1.000000 0.000000 0.000000
            0.000000 1.000000 0.000000
            0.000000 0.000000 1.000000
           filter: 
Output format: Automatic 
 supported: Automatic, RGB, YCbCr 4:2:2, YCbCr 4:4:4
Broadcast RGB: Automatic 
 supported: Automatic, Full, Limited 16:235
max bpc: 8 
 range: (8, 12)
bottom margin: 0 
 range: (0, 100)
top margin: 0 
 range: (0, 100)
right margin: 0 
 range: (0, 100)
left margin: 0 
 range: (0, 100)
Colorspace: Default 
 supported: Default, SMPTE_170M_YCC, BT709_YCC, XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, opRGB, BT2020_CYCC, BT2020_RGB, BT2020_YCC, DCI-P3_RGB_D65, DCI-P3_RGB_Theater
link-status: Good 
 supported: Good, Bad
CONNECTOR_ID: 42 
 supported: 42
non-desktop: 0 
 range: (0, 1)
 

What should I do to get the LattePanda to recognize the monitor?