NetBSD-Users archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: Apple iMac G4/700 - Black text at boot



On 2015-02-12 08:39, Michael wrote:
Hello,

On Wed, 11 Feb 2015 21:20:00 -0500
me%jeremiahford.com@localhost wrote:

On 2015-02-11 21:16, Michael wrote:
> Hello,
>
> On Wed, 11 Feb 2015 20:23:41 -0500
> me%jeremiahford.com@localhost wrote:
>
>> I just installed netbsd 6.1.6 macppc on an iMac G4/700.
>>
>> After first boot from hardrive, the console text is red, but as it
>> nears
>> finishing the boot process the text turn black ((or invisible))
>> against
>> my black screen and I cannot see it.
>>
>> If I log in ((simply typing into the keyboard with good faith that it
>> is
>> correct)) I can log in.  If I hit the right commands and any red text
>> is
>> called, I can see it.  But it is mostly black or invisible.
>>
>> I can eject the cd drive & reboot the computer, so I know I am logging
>> in fine.  Just can't see text.
>>
>> Has anyone run into this issue before?
>
> What kind of graphics hardware is that? I assume some sort of nvidia?
>

Since I cannot look it up at command line, I had to look it up via
Google.

It seems to be a "NVIDIA GeForce2 MX graphics processor with AGP 2X
support" as per
http://www.everymac.com/systems/apple/imac/specs/imac_700_fp.html

Alright, that explains the colour problems - there's no driver for this
chip in 6.x and OpenFirmware calls set only palette registers for the
analog output, I guess the iMac G4's panel uses the digital one.

Any chance you could try a -current or 7.x kernel? I wrote a driver for
the 2MX ( gffb ) a while ago and also added a workaround for the
palette problem to genfb.

have fun
Michael

Thanks, will do this tonight

-JF


Home | Main Index | Thread Index | Old Index