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Gentoo not using full screen on Toshiba Tecra 8100 [SOLVED]
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phoric
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PostPosted: Fri Aug 26, 2005 6:20 pm    Post subject: Gentoo not using full screen on Toshiba Tecra 8100 [SOLVED] Reply with quote

I'm setting up Gentoo on my Toshiba Tecra 8100, with the S3 Savage video card. Got everything working with no problems, including wireless and dual-boot with WinXP. Except when I boot to Gentoo, the video only occupies the center portion of the screen rather than the full resolution. The display supports 1024x768, so I'm thinking that it's defaulting to 800x600 for some reason, but instead of stretching it to fit the screen, it just centers the image. This happens in the bootloader (grub) also, so I was thinking maybe it had to do with the way grub is setup, but I'm not sure. I've been playing with framebuffer settings, vga, vesa, video options, etc in grub and in the kernel without it making any difference. The 2005.1 LiveCD and Windows works fine.

Any clues as to what I should be looking at? Grub settings? Framebuffer? Kernel settings? Thanks!
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Last edited by phoric on Sat Aug 27, 2005 12:08 am; edited 1 time in total
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the_mgt
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PostPosted: Fri Aug 26, 2005 7:17 pm    Post subject: Reply with quote

Hi!
I guess its framebuffer build into the kernel for you. Than you have to find the right video: kernel line and all should work (except the scrollbuffer, maybe...). I had the same problem on my laptop too. Grub is still in the small size, didn't figure out how to fix that and don't care much about that.
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phoric
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PostPosted: Fri Aug 26, 2005 11:46 pm    Post subject: Reply with quote

Been trying the framebuffer angle on this for a couple hours today. I noticed this in the output of dmseg:

Code:
savagefb: 1024x768 TFT LCD panel detected and active
savagefb: Limiting video mode to 1024x768
savagefb: mapped framebuffer at d8a00000, pbase == f0000000
savagefb v0.4.0_2.6: 8064kb VRAM, using 800x600, 37.868kHz, 60Hz


As you can see from the above, it's saying it's capable of 1024x768, but is somehow setting it to 800x600.


I've been trying numerous variations of video options in grub.conf including the following:

Code:
video=vesafb:ywrap,mtrr,1024x768-32@60

video=vesafb:ywrap,mtrr,1024x768@60

video=vesafb:ywrap,mtrr,1024x768-32@60 vga=0x316

video=vesafb:ywrap,mtrr vga=0x305

video=vesafb:ywrap,mtrr vga=0x316

video=vesafb:ywrap,mtrr vga=0x318

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jmbsvicetto
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PostPosted: Fri Aug 26, 2005 11:50 pm    Post subject: Reply with quote

Hi.

I suggest that you replace the savagefb with vesafb-tng or vesafb. Then you should use on GRUB the following line.
Code:
video=vesafb:ywrap,mtrr,1024x768-32@60

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phoric
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PostPosted: Sat Aug 27, 2005 12:07 am    Post subject: Reply with quote

jmbsvicetto wrote:
Hi.

I suggest that you replace the savagefb with vesafb-tng or vesafb. Then you should use on GRUB the following line.
Code:
video=vesafb:ywrap,mtrr,1024x768-32@60



Thanks, that was it. I had both the Savage S3 (which is my video card, so I thought I needed that too) and the vesafb-tng drivers compiled into the kernel. I removed it, re-compiled, and setup my grub.conf with:

video=vesafb:ywrap,mtrr,1024x768-32@60

It's working now. Thanks!

Now I just need to get Xorg-x11 to use the same resolution...
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