Re: NetBSD installation woes on Sun Blade 100

Connor McLaughlan <[email protected]>
Newsgroups gmane.os.netbsd.ports.sparc64
Message-ID <CABo1Du5Z=ex9=Q4unPsFyBfv-0qFGFNZp+=LH5pE5Ei-FDyJRQ@mail.gmail.com>
On Thu, Jun 25, 2020 at 9:55 AM Martin Husemann <[email protected]> wrote:
>
> Now what this all gets down to: there are several possible issues here that
> make it not work, and we are trying to figure out what it is:
>
>  - mach64 will follow EDID data from the display and (eroneously) switch
>    to a resolution it does not have enough framebuffer for - IIRC this has
>    been fixed, but I am not sure of the state for the netbsd-9 branch
>  - kernel stack usage is high in some of the edid parsing functions and
>    depending on actual hardware configuration this may cause a stack
>    overflow on some machines (this is why John's kernel has a larger
>    kernel stack). This has been fixed in -current but not yet pulled
>    up to the netbsd-9 branch
>  - something else is wrong with the display or edid communication fails
>    and the display mode selected is totally off - this will be more easy
>    to check once the system is setup and has network, so we can get at
>    kernel messages after the display turned black
>
> Connor: can you try a different monitor? What resolutions does the monitor
> provide? But first please test with the proper screen:r.... setting (adapted
> to the capabilities of your monitor).
>
> Martin

I have two old 4:3 VGA display with a resolution of 1280x1024@60

I have set:

setenv output-device screen:r1280x1024x60

The official iso still blanks out directly at mach64 driver init.
Should i try the modified stack iso next?
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