Originally Posted by TobiSGD
That must be a typo, usually it is referred to as 24 bpp, not 24 bps. bpp is the short form for bits per pixel and defines the color depth (~16,7 million colors in the case of 24bpp).
so then using this chart as a guide:
Originally Posted by http://forums.gentoo.org/viewtopic.php?t=49036
| 640x480 800x600 1024x768 1280x1024
256 | 0x301 0x303 0x305 0x307
32k | 0x310 0x313 0x316 0x319
64k | 0x311 0x314 0x317 0x31A
16M | 0x312 0x315 0x318 0x31B
video=1280x1024-24@75 is roughly equivelent to vga=0x31B...
Though I had no idea how 16M resolved to 24... untill your description led me to a google search for:
"bits per pixel" "color depth"
Which led me to: https://en.wikipedia.org/wiki/Color_depth
From which I extracted that 16M is roughly equivelent to 2^24... And if I understand it that should mean that:
video=1024x768-16@75 is roughly equivelent to vga=0x317
video=800x600-15@75 is roughly equivelent to vga=0x315
video=640x480-8@75 is roughly equivelent to vga=0x301[/code]
All of which indicate a 75Hz refresh rate though so on my laptop where the available refresh rate for it is 60Hz, the equivelent of vga=0x305 would be:
Is that right?