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Invizix
n00b
Joined: 14 Sep 2004
Posts: 41
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 Posted: Wed Sep 15, 2004 11:27 pm Post subject: Framebuffer vga= for GRUB not working |
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Hey all,
I've never had trouble with it before, but when I installed Gentoo 2004.2 I can not get the framebuffer to work correctly.
in Grub I have the kernel flag vga=792 set, but grub says that it's invalid.
What is the correct number?
792 is supposed to be 1024x768x32-bit colour |
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placeholder
Advocate
Joined: 07 Feb 2004
Posts: 2500
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| Posted: Wed Sep 15, 2004 11:30 pm Post subject: |
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| Did you make sure to add support for your framebuffer in the kernel? |
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David_Escott
l33t
Joined: 12 Jan 2003
Posts: 952
Location: Boston, MA
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| Posted: Wed Sep 15, 2004 11:40 pm Post subject: |
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| Its not a problem with framebuffer support but rather it seems something changed in the kernel. I used 791 for ages -- booting gentoo-dev 2.6.8-r4 built with the same config as gentoo-dev 2.6.5 Linux complains. It seems that 791 is no longer a valid choice for the vesa framebuffer (after taking into account the conversion to Hex). The menu offers me a number of other numbers but all of them seem to be <500 or so, next time I reboot I will write them down. |
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gearmonk
n00b
Joined: 30 Oct 2003
Posts: 43
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| Posted: Thu Sep 16, 2004 12:01 am Post subject: |
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This is due to the inclusion of Vesafb-tng in the 2.6.8-gentoo sources. It uses a different format for specifiying the video mode. It should be configurable using the video= option on the kernel line in grub, like so:
| Code: | | video=vesafb:1280x1024@60,mtrr,ywrap |
However, I have not always had luch with that, depending on video card etc. You can tell the kernel to use the old vesafb, which accepts the vga= option, by selecting it in the kernel configuration. The option is under Device Drivers -> Graphics Support -> VESA driver type.
Hope that helps. |
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artic
Veteran
Joined: 22 Nov 2003
Posts: 1208
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| Posted: Thu Sep 16, 2004 12:34 am Post subject: |
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Yes the new kernel makes changes in vesa drivers.
See this link : http://dev.gentoo.org/~spock/projects/gensplash/
Have fun
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Pwd by Gentoo | 2.6.28-gentoo-x64 | kde4.2| ext4 | xorg 7.4 | |
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Invizix
n00b
Joined: 14 Sep 2004
Posts: 41
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| Posted: Thu Sep 16, 2004 1:06 am Post subject: |
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Wow! Thanks for the quick replies! 
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Linux. Freedom. Power. |
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