newcons fb driver
Adrian Chadd
adrian at freebsd.org
Mon Mar 3 06:58:20 UTC 2014
On 2 March 2014 22:52, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
> In message <CAJ-Vmo=jCGUxXs_GBoCm581wTouozWE=AQ3x1wBKYM_J3_dGrg at mail.gmail.com>
> , Adrian Chadd writes:
>
>>.. i'm pretty sure there was a reason for why it's done in byte sizes.
>>Maybe speak to phk?
>
> 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?
-a
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