1 |
Apparently, though unproven, at 18:03 on Tuesday 04 January 2011, Paul Hartman |
2 |
did opine thusly: |
3 |
|
4 |
> On Mon, Jan 3, 2011 at 5:22 PM, Nikos Chantziaras <realnc@×××××.de> wrote: |
5 |
> > On 01/03/2011 10:23 PM, Paul Hartman wrote: |
6 |
> >> On Mon, Jan 3, 2011 at 2:07 PM, Nikos Chantziaras<realnc@×××××.de> |
7 |
wrote: |
8 |
> >>> uvesafb will not give you extra resolutions. It will however allow you |
9 |
> >>> to |
10 |
> >>> use non-default refresh-rates which is sometimes useful with CRT |
11 |
> >>> monitors. |
12 |
> >>> |
13 |
> >>> But it has a drawback too: it needs a userspace tool and resolution is |
14 |
> >>> switched too late during the boot process, meaning until it loads |
15 |
> >>> you'll be |
16 |
> >>> seeing the kernel boot in 80x25 mode (which in turn means no boot |
17 |
> >>> graphics/logo right from the start.) |
18 |
> >> |
19 |
> >> I use uvesafb and I can see Tux (eight of him) during my boot process |
20 |
> >> before uvesafb kicks in. |
21 |
> > |
22 |
> > I mean more something like this when I say "boot logo": |
23 |
> > |
24 |
> > http://mjanusz.files.wordpress.com/2008/02/shot.png |
25 |
> > |
26 |
> > It's at least 10 years since I saw that default Tux boot thingy :-P But |
27 |
> > anyway, if uvesafb hasn't kicked in yet, what on earth is drawing that |
28 |
> > Tux? |
29 |
> |
30 |
> Ah-ha, I think that's bootsplash (which I'm not using). I've only |
31 |
> seen it on a Live CD. :) |
32 |
> |
33 |
> In my kernel config I have enabled VESA framebuffer as well as |
34 |
> userspace framebuffer (uvesafb), and I enabled "Bootup Logo". So maybe |
35 |
> what happens is that VESA framebuffer starts immediately into some |
36 |
> default resolution, I see eight Tuxs (Tuxes?), then shortly thereafter |
37 |
> the uvesafb kicks in and video mode changes to the one I specified. At |
38 |
> least that's how it seems to happen. I reboot so rarely that I never |
39 |
> gave it much thought. |
40 |
|
41 |
|
42 |
It's the VESA framebuffer that does it, nothing to do with bootsplash. |
43 |
|
44 |
Look at the help text for CONFIG_FB_VESA in menuconfig. |
45 |
|
46 |
|
47 |
-- |
48 |
alan dot mckinnon at gmail dot com |