Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage

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

 



Eric W. Biederman wrote:
> 
> I expect I can find a few more examples where we specify
> video_cols and video_lines but we use video_mode == 0.
> 
> Going farther mode 0x00 is a BIOS 40x25 mode.  So the patch below is
> not always safe even if we boot the bzImage.  It is just highly
> unlikely anyone would start the kernel in 40x25 text mode. 
> 

Mode 0x00 is, at least theoretically, BIOS 40x25 *grayscale*; this mode
(and mode 0x02 which is the same thing in 80x25) were as far as I know
only ever used with composite monitors off CGA cards, i.e. functionally
never.  Actual monochrome monitors used mode 0x07.

	-hpa
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux