I have tried (using a Steamlink HDMI cable) directly connected to my TV (to eliminate my receiver as a point of failure/bugs) to get something to output to the screen in 4k.
I haven't succeeded.
What information I've gathered so far:
There are two "vops" a big and little, and the little one is not designed to, and cannot output 4k (there was a patch hacking that into vopl but I never dared test it and can't find it now).
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rubenvb
Hi everyone,
I'm trying to get 4k output from my NanoPi M4.
I have tried (using a Steamlink HDMI cable) directly connected to my TV (to eliminate my receiver as a point of failure/bugs) to get something to output to the screen in 4k.
I haven't succeeded.
What information I've gathered so far:
There are two "vops" a big and little, and the little one is not designed to, and cannot output 4k (there was a patch hacking that into vopl but I never dared test it and can't find it now).
There was this change setting the maximum resolution to 4k in a file/subdirectory I cannot find in recent kernels anymore: https://patchwork.ozlabs.org/project/uboot/patch/20200402114125.2501-6-jagan@amarulasolutions.com/
Any LibreElec/Kodi build (Joern-P, @Kwiboo, @balbes150, @@lex) didn't seem to give me any 4K output options, on kernel 4.4 or 5.x.
The EDID returned from my TV contains the 4k modes (but seems to not be able to handle them correctly):
Section "Monitor" Identifier "LG TV" ModelName "LG TV" VendorName "GSM" # Monitor Manufactured week 1 of 2015 # EDID version 1.3 # Digital Display DisplaySize 1600 900 Gamma 2.20 Option "DPMS" "false" Horizsync 30-83 VertRefresh 58-62 # Maximum pixel clock is 160MHz #Not giving standard mode: 640x480, 60Hz #Not giving standard mode: 800x600, 60Hz #Not giving standard mode: 1024x768, 60Hz #Not giving standard mode: 1152x864, 60Hz #Not giving standard mode: 1280x1024, 60Hz #Extension block found. Parsing... #WARNING: I may have missed a mode (CEA mode 93) #WARNING: I may have missed a mode (CEA mode 94) #WARNING: I may have missed a mode (CEA mode 95) #WARNING: I may have missed a mode (CEA mode 98) #WARNING: I may have missed a mode (CEA mode 99) #WARNING: I may have missed a mode (CEA mode 100) Modeline "Mode 16" 74.25 1920 2008 2052 2200 540 542 547 562 +hsync +vsync interlace Modeline "Mode 0" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 1" 85.50 1360 1424 1536 1792 768 771 777 795 +hsync +vsync Modeline "Mode 2" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 3" 148.500 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 4" 74.250 1280 1390 1420 1650 720 725 730 750 +hsync +vsync Modeline "Mode 5" 74.250 1280 1720 1760 1980 720 725 730 750 +hsync +vsync Modeline "Mode 6" 74.250 1920 2008 2052 2200 1080 1082 1087 1125 +hsync +vsync interlace Modeline "Mode 7" 74.250 1920 2448 2492 2640 1080 1082 1089 1125 +hsync +vsync interlace Modeline "Mode 8" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync Modeline "Mode 9" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync Modeline "Mode 10" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync Modeline "Mode 11" 74.250 1920 2558 2602 2750 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 12" 74.250 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 13" 74.250 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync Modeline "Mode 14" 27.000 1440 1464 1590 1728 576 578 581 625 -hsync -vsync interlace Modeline "Mode 15" 25.200 640 656 752 800 480 490 492 525 -hsync -vsync Modeline "Mode 17" 74.25 1280 1390 1430 1650 720 725 730 750 +hsync +vsync Option "PreferredMode" "Mode 16" EndSection
CEA mode 93-95 and 98-100 are all 4k output modes, see the table listing them on Wikipedia.
My question is then, what am I missing and how do I get 4k output from my NanoPi M4?
Thanks for any input!
Edited by rubenvbLink to comment
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