Framebuffer 1680x1050

Ranguvar · 2009-01-04 23:52:52

Yeah, if your BIOS says you can't run a certain mode, you won't be able to. hwinfo, if my theory is correct, says what the GPU can do - IF the BIOS is willing.

Gauvenator · 2009-01-04 23:54:14

Ranguvar wrote:

Yeah, if your BIOS says you can't run a certain mode, you won't be able to. hwinfo, if my theory is correct, says what the GPU can do - IF the BIOS is willing.

yah that sounds about right
I'll try the bios flash soon...I've gotta find a flash drive to use.

saciel · 2009-01-14 13:08:57

How can I find out which vga=# number corresponds to wich video mode?

vga=ask only gives me six choices with very low resolution, however, I can use other modes!

I tried

Mode 0x0368: 1680x1050 (+1680), 8 bits
Mode 0x0369: 1680x1050 (+6720), 24 bits

as someone mentioned them in a post above, but 369 doesn't exist for me and 368 only gives 1280x800 instead of 1680x1050.

I found another list elsewhere, that said that 361 was a 1680x1050 mode, but for me it's only 1440x900 (which is the best I've found thus far.

So probably everything is wokring for me (I can get 1680x1050 on X)... just how do I get the number for 1680x1050?

Card is an intel915.

Ranguvar · 2009-01-14 16:15:23

Those modes are in octal, try converting to decimal first. Google can convert.

(Ex. http://www.google.com/search?q=0x0369+to+decimal)

saciel · 2009-01-14 17:47:28

Ranguvar wrote:

Those modes are in octal, try converting to decimal first. Google can convert.
(Ex. http://www.google.com/search?q=0x0369+to+decimal)

Entering vga=873 also results in a message at boot time that video mode 369 is undefined. It's the same as if I had entered vga=0x0369. It doesn't matter if using octal or decimal. I just have to find out which number corresponds to which resolution for me.

saciel · 2009-01-16 00:22:01

Using 'vbetest' form the package 'lrmi' returns a numbered list of available modes (the example below showes only a few low-res modes because my external monitor is disconnected right now):

VBE Version 3.0
Intel(r) 82945GM Chipset Family Graphics Chip Accelerated VGA BIOS
[261] 1024x768 (256 color palette)
[279] 1024x768 (5:6:5)
[280] 1024x768 (8:8:8)
[274] 640x480 (8:8:8)
[276] 800x600 (5:6:5)
[277] 800x600 (8:8:8)
[257] 640x480 (256 color palette)
[259] 800x600 (256 color palette)
[273] 640x480 (5:6:5)

The numbers, however, seem to be in no way related to the numbers one needs to enter on the kernel bootline, neither the octal nor the decimal ones.

Anyway, since 'vbetest' showed me there were modes for 1680x1050 available I just started experimenting a bit and found at that 0x363 t 0x365 were the three modes for the desired resolution (higher number means higher color depth).

But I really couldn't find a way to somehow get informed about all available modes and their vga-numbers other than the good ol' trial-and-error.

saciel · 2009-01-16 13:54:14

Okay, it's finally solved.
http://wiki.archlinux.org/index.php/GRU … Resolution explains how to calculate the values that grub takes on the kernel line from the values of the 'vbetest' output.

proxima_centauri · 2009-01-16 14:53:53

Perhaps the package lrmi isn't in x86_64 repo's? Pacman can not find it.
Is there something equivalant I can run in x86_64?

rson451 · 2009-01-16 15:16:01

If you're searching for vbetest to probe for available framebuffer modes under x86_64, try hwtool instead, lrmi won't build.

is in the AUR comments for this package. Maybe it can do what you want.

proxima_centauri · 2009-01-16 15:18:06

I searched yaourt, the only thing available is libx86 and vbetools, both in community.
Did you mean something else?

rson451 · 2009-01-16 15:18:57

I've got no clue, just relaying what was on the comments page.

Last edited by rson451 (2009-01-16 15:20:06)

proxima_centauri · 2009-01-16 15:24:41

Oops, didn't see that part about hwtools, but I don't see it in pacman or yaourt either.
I'll try looking for something else I guess...

Last edited by proxima_centauri (2009-01-16 15:25:46)

saciel · 2009-01-16 23:32:38

There also is a 'vbetool' package in the extra repository for both architectures:
http://www.archlinux.org/packages/extra/x86_64/vbetool/
You might want to try this one.

jordz · 2009-01-22 07:44:44

Did you try hwinfo? http://aur.archlinux.org/packages.php?ID=14977
hwinfo --framebuffer as root

proxima_centauri · 2009-01-22 23:56:30

Thanks jordz,
So the relavent output I get is
Mode 0x0369: 1680x1050 (+6720), 24 bits

saciel, if you're still following this thread, what number for vga=" " did you end up using?

Last edited by proxima_centauri (2009-01-22 23:59:13)

saciel · 2009-01-23 12:22:19

I ended up with 0x0365, which was (for me) a resolution of 1680x1050 with the highest color depth. 364 and 363 also have 1680x1050 with lower color depth.

Cleophas · 2009-02-11 04:41:55

I got hwinfo installed on my newly installed x86_64. But when doing the hwinfo --framebuffer, why am I not seeing anything past 1400x1050? I have a 1680x1050 widescreen.

Arch Linux

#26 2009-01-04 23:52:52

Re: Framebuffer 1680x1050

#27 2009-01-04 23:54:14

Re: Framebuffer 1680x1050

#28 2009-01-14 13:08:57

Re: Framebuffer 1680x1050

#29 2009-01-14 16:15:23

Re: Framebuffer 1680x1050

#30 2009-01-14 17:47:28

Re: Framebuffer 1680x1050

#31 2009-01-16 00:22:01

Re: Framebuffer 1680x1050

#32 2009-01-16 13:54:14

Re: Framebuffer 1680x1050

#33 2009-01-16 14:53:53

Re: Framebuffer 1680x1050

#34 2009-01-16 15:16:01

Re: Framebuffer 1680x1050

#35 2009-01-16 15:18:06

Re: Framebuffer 1680x1050

#36 2009-01-16 15:18:57

Re: Framebuffer 1680x1050

#37 2009-01-16 15:24:41

Re: Framebuffer 1680x1050

#38 2009-01-16 23:32:38

Re: Framebuffer 1680x1050

#39 2009-01-22 07:44:44

Re: Framebuffer 1680x1050

#40 2009-01-22 23:56:30

Re: Framebuffer 1680x1050

#41 2009-01-23 12:22:19

Re: Framebuffer 1680x1050

#42 2009-02-11 04:41:55

Re: Framebuffer 1680x1050

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