newcons fb driver

[Poul-Henning Kamp]

In message <CAJ-Vmokv0r-rTCg15iWKLDcDLR8Hoh0WVgf3CDLNxz+ONZ5EnQ at mail.gmail.com>
, Adrian Chadd writes:

>> Buggy video hardware, which does not do larger writes correctly,
>> the most recent one being an Intel Laptop, but I can't remember which.
>>
>> At the very least, byte writes needs to be a boot-time option.
>
>Is there a way to detect this? Ie, writing to video memory and then
>reading it back a byte at a time to see if the patterns match?

Never tried that.

Given that the display was bogus, it would probably work.

Maybe do a "verify" on the first 10 screen updates ?

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.