Friday, April 22, 2011

[HOW TO] Change TTY resolution after Install proprietary driver (10.10)


Sometimes we find that after installing the proprietary driver for our graphics cards, the resolution of the TTY is the size of a thumb character.

To solve this problem, I present this [HOWTO] in order to solve

1. We need the following packages:
sudo apt-get install v86d hwinfo
2. We seek the ID of our favorite resolution:
sudo hwinfo --framebuffer | grep "Mode"
see something like this:
Model: "NVIDIA NV34 Board - p162-2nz"
....
  Mode 0x0317: 1024x768 (+2048), 16 bits
  Mode 0x0318: 1024x768 (+4096), 24 bits
  Mode 0x031a: 1280x1024 (+2560), 16 bits
  Mode 0x031b: 1280x1024 (+5120), 24 bits
....
  Mode 0x0352: 2048x1536 (+8192), 24 bits
The hexadecimal numbers are iD (Identifiers), in my case I chose 0x0318, which corresponds to 1024x768 resolution.

3. Now we must tell the kernel to use when starting resolution.
sudo gedit  /etc/default/grub
In this file find the following lines:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
...
#GRUB_GFXMODE=640×480
and change it chose the resolution.
Note: You must be sure that your monitor supports the latest resolution listed for "hwinfo" in my case it worked, and I chose 1024x728. Note the CHANGES IN THE TEXT.
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset video=uvesafb:mode_option=1027x768-24,mtrr=3,scroll=ywrap"
GRUB_CMDLINE_LINUX="vga=0x0318"
...
GRUB_GFXMODE=1024x768
Store.

4. Edit another file:
sudo gedit /etc/initramfs-tools/modules
and add this text to the end
uvesafb mode_option=1024x768-24 mtrr=3 scroll=ywrap
Store.

5. Need to create another file:
echo FRAMEBUFFER=y | sudo tee /etc/initramfs-tools/conf.d/splash
6. All ready, just need to update the settings:
sudo update-grub2
sudo update-initramfs -u
7. Final step restart. and enjoy.
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1 comments:

Great post!!!
Works perfect on Ubuntu 10.10

Thanks!!

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