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<
greyltc >
i've got a submarine on my screen and nothing else
11:01
<
greyltc >
What should I do to get some debugging info printed to the display?
11:58
<
marex >
connect a serial console
11:58
<
marex >
include details ... board, u-boot version, etc.
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<
greyltc >
marex: raspberry pi 5. no access to the physical console. i'm asking for advice on how to get console prints to go to the display
13:45
<
greyltc >
clearly u-boot can draw to the display since it can draw a submarine on it
13:45
<
greyltc >
so I'd expect there to be a way for it to print something useful for debugging there
13:50
<
marex >
greyltc: that you can put something on the screen does not mean you can draw text there too, the picture could be some simple memcpy into video buffer
13:51
<
marex >
greyltc: if you had a serial console, you could find out using the 'coninfo' command
13:51
<
marex >
greyltc: without it ... do you have fw_setenv command in Linux userspace , or can you modify the U-Boot environment somehow in some text file maybe ?
13:52
<
marex >
try and set 'stdout vidconsole' or 'stdout vga' or 'stdout video' ... can be either, coninfo would tell you which one it is
13:52
<
greyltc >
yeah. i can modify boot.scr
13:54
<
marex >
this is probably only applied after the autoboot timeout ran out, so you won't be able to use interactive console at that point anymore
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