Messages in this thread | | | Date | Thu, 27 Mar 2003 23:39:02 +0200 | From | Bongani Hlope <> | Subject | Re: vesafb problem |
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On Thu, 27 Mar 2003 11:34:25 -0800 Walt H <waltabbyh@comcast.net> wrote:
> Jurriaan wrote: > > > > > I had a similar problem with 1 Gb Ram, and received this answer on the > > linux-kernel mailinglist:
<sip>
> > thunder7> framebuffer just fine (well, it doesn't work and writes > > thunder7> funky patters to the screen, but at least > > thunder7> ioremap_nocache() works fine). > > > > thunder7> What is the reason ioremap_nocache() fails? Is this > > thunder7> something that can be prevented? I am not entirely clear > > thunder7> on what is happening anyway (real memory, virtual > > thunder7> memory, nocache-memory, io-memory - a little bit above
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> > This means with "mem=512M", you will probably have about 500M of > > vmalloc space, which is more than enough to ioremap the framebuffer. > >
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> > To see if this is it, booting with mem=512M would be a good test. > > > > Kind regards, > > Jurriaan > > Thanks for the reply. That is indeed what is doing it. When I added > mem=512M, I had two smiling penguins on boot :) My vid card does have > 128MB Ram, but I also tend to agree that I'm not sure that the > framebuffer needs to remap *all* of its memory. But, for now, I think > I'll add the hack (256 << 20) to make it work. Any ideas if this might > have unforseen bad effects? Might it screw up highmem I/O? Thanks again, > > -Walt
Strange I'm having the same problem, but I only have 256MB of memory and my GeForce 2 only has 32MB. This is what's on my messages file:
vesafb: framebuffer at 0xe0000000, mapped to 0xd0807000, size 32768k vesafb: mode is 800x600x16, linelength=1600, pages=3 vesafb: protected mode interface info at c000:c060 vesafb: scrolling: redraw vesafb: directcolor: size=0:5:6:5, shift=0:11:5:0 Looking for splash picture.... found (800x600, 13683 bytes). Console: switching to colour frame buffer device 82x30 fb0: VESA VGA frame buffer device
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