[gentoo-user] Aluminum iMac framebuffer?

[gentoo-user] Aluminum iMac framebuffer?

[Simon Hunt]

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I can't get a 1680x1050 framebuffer (my native resolution) or any widescreen
framebuffer on this intel iMac and the console looks pretty bad because of
it. The best I can use is 1024x768. I have a Radeon HD 2400 XT video card.
The Radeon framebuffer "radeonfb" in the kernel doesn't support this card.
What can I do?

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Re: [gentoo-user] Aluminum iMac framebuffer?

[Paul Hartman]

On Thu, Aug 20, 2009 at 4:26 PM, Simon Hunt<chesemonkyloma@gmail.com> wrote:
> I can't get a 1680x1050 framebuffer (my native resolution) or any widescreen
> framebuffer on this intel iMac and the console looks pretty bad because of
> it. The best I can use is 1024x768. I have a Radeon HD 2400 XT video card.
> The Radeon framebuffer "radeonfb" in the kernel doesn't support this card.
> What can I do?

Try uvesafb, it is (sometimes) able to utilize more modes than the
other framebuffers. The available resolutions are highly dependent on
your video hardware, though.

http://dev.gentoo.org/~spock/projects/uvesafb/

Re: [gentoo-user] Aluminum iMac framebuffer?

[Peter Humphrey]

On Thursday 20 August 2009 22:40:07 Paul Hartman wrote:

> The available resolutions are highly dependent on your video hardware,
> though. 

And the BIOS.

-- 
Rgds
Peter

Re: [gentoo-user] Aluminum iMac framebuffer?

[pk]

Simon Hunt wrote:
> I can't get a 1680x1050 framebuffer (my native resolution) or any widescreen
> framebuffer on this intel iMac and the console looks pretty bad because of
> it. The best I can use is 1024x768. I have a Radeon HD 2400 XT video card.
> The Radeon framebuffer "radeonfb" in the kernel doesn't support this card.
> What can I do?

Don't know the specifics of your hardware but I use vesa framebuffer
which works fine for me (stationary pc, radeon 3870). However, for some
reason, the radeon cards I have (all rv600+) do not seem to support the
standard vga modes; I had to use a tool (vbetest from package lrmi) to
find out the number to put into the kernel command line. I use vga=804
to achieve 1280x1024@24. Don't know if this will help but it can
probably (don't know for sure) find the supported modes...

HTH

Best regards

Peter K

Re: [gentoo-user] Aluminum iMac framebuffer?

[pk]

Simon Hunt wrote:
> I can't get a 1680x1050 framebuffer (my native resolution) or any widescreen
> framebuffer on this intel iMac and the console looks pretty bad because of
> it. The best I can use is 1024x768. I have a Radeon HD 2400 XT video card.
> The Radeon framebuffer "radeonfb" in the kernel doesn't support this card.
> What can I do?

Oh, one more thing:
http://en.wikipedia.org/wiki/VESA_BIOS_Extensions

Best regards

Peter K