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Sunday 20 June 2010

Windows XP broken after Ubuntu Lucid upgrade

By dooblem on Sunday 20 June 2010, 23h12

A friend of mine has a PC with Windows XP / Ubuntu in dual boot. After the Lucid upgrade, Windox fails to boot (strange lines on the screen after Grub...).

TestDisk saved us:

sudo aptitude install testdisk
sudo testdisk
  1. Choose [ Create ] Create a new log file
  2. Choose windows physical disk, then [Proceed ]
  3. Choose [ Continue ] Continue even if there are hidden data
  4. Choose [Intel ] Intel/PC partition
  5. [ Advanced ] Filesystem Utils
  6. On Windows XP partition, boot sector is generally bad or non identical to backup sector (Sectors are not identical.).
  7. Choose [ Backup BS ] to copy the backup sector to the master sector.
  8. After that, quit, reboot and test.

Sources:

one comment

Thursday 3 June 2010

3D performance problems with KMS

By dooblem on Thursday 3 June 2010, 13h48

With the last Ubuntu Lucid 10.04 come a new graphical module: KMS or Kernel-based Mode-Setting.

If you have performance problems in some games like Quake 3 or TCE / Enemy Territory, try to disable KMS. The problem can also be with the mouse pointer (slowness, lag, delay or inacuracy).

Grub 2

Add nomodeset in /etc/default/grub then issue the command update-grub.

vi /etc/default/grub
GRUB_CMDLINE_LINUX="nomodeset"
update-grub

Grub 1

Add nomodeset at the end of the # kopt line, then issue command update-grub.

vi /boot/grub/menu.lst
# kopt=root=/dev/sda1 ro nomodeset
update-grub

Someone also told me that disabling KMS solved his Firefox javascript speed problem in Yahoo Mail.

no comment

Monday 14 December 2009

Display Ubuntu boot commands

By dooblem on Monday 14 December 2009, 01h00

By default, Ubuntu starts with splash screen in quiet mode without displaying startup actions.

Before Ubuntu Karmic (legacy Grub), you have to edit /boot/grub/menu.lst to remove the quiet words.

Since Ubuntu Karmic (new Grub):

sudo vi /etc/default/grub
# remove "quiet"
sudo update-grub

Link:

See also:

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