Re: Amiga screen modes in wscons

Hi David,=0A=
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From: David Brownlee <[email protected]>=0A=
Sent: Sunday, November 12, 2023 12:52=0A=
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> If you have a fast cross build box the time to rebuild a new kernel=0A=
> with adjusted values is approximately nothing (though the time to copy=0A=
> to the Amiga and for it to reboot into it is very much not :)=0A=
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I have the cross build box. Indeed it takes more time to scp the kernel to =
the Amiga and reboot than the compilation itself :) If for wrong parameters=
 I cannot see the screen and I have to hard-reset the Amiga, the fsck will =
take easily 15 minutes. I could go around that by blindly writing or serial=
 console...=0A=
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> Looking for a more general solution - the values could be optionally=0A=
> passed in at boot time from the bootloader, either as parameters or by=0A=
> reading from a boot.cfg file=0A=
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Not sure if that would be worth as they are really low-level, mostly for de=
bugging. I think what would make sense is to give the user the option to se=
lect the screen mode as parameter from bootloader. I can see there are seve=
ral screenmodes defined in grfabs_cc.c: GRF_PAL, GRF_NTSC, GRF_AGA, GRF_AGA=
_VGAONLY, GRF_SUPER72, GRF_A2024...=0A=
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I think the -A kernel parameter -though nice- is not fine-grained enough.=
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> Actually - are these values which would make sense to be able to=0A=
> adjust dynamically at runtime - so via sysctl or ioctl the screenmode=0A=
> could be tweaked while running?=0A=
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In that case, yes, low-level welcome! It would really help to adjust screen=
 issues such as the one I am experiencing.=0A=
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Regards,=0A=
Carlos=0A=
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Carlos Mil=E1n Figueredo | HispaMSX System Operator | http://www.hispamsx.o=
rg | telnet://bbs.hispamsx.org | https://calnus.com=