: >That is an old document, but I am afraid that it is still true
: >that it is IMPOSSIBLE to run Linux with over 14mb of main memory
: >and also run the cirrus '43 card in 16-bit or true color mode.
: Is *that* the problem? I have a CL5446 2MB card (running as a 5434)
: with 32MB RAM and when I try >8bpp I get complaints about requiring
: a linear addressing mode (and I did try the "linear" option).
: I'd love to get >8bpp too!
It's a limitation of your card, not the cirrus chip. Cirrus chips can put the
linear ram framebuffer at 14Mb, 78Mb (=64+14Mb), and (I think) an even
higher address. Some card manufacturers don't implement the address lines
that allow the higher positions, so you're stuck with 14Mb. There is an
XF86SVGA option that selects framebuffer address. Try 78Mb and see if it
(At least, this is all true for the 542X series, which I have a tech ref for.
As far as I know, the 543X and 544X chips work in very similar ways)