Sorry, in my description above there is an important point missing:
It is necessery to add "i915.modeset=1" as a further kernel parameter after
"splash" (in the Grub2-line which starts with linux /boot/vmlinuz...) This
starts the graphic driver for intel graphic devices.
Again, one should add this to the /boot/grub/grub.cfg - file...
Here is the corresponding part of my own grub.cfg-file:
menuentry 'Ubuntu, mit Linux 2.6.38-8-generic' --class ubuntu --class gnu-linux
--class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos5)'
search --no-floppy --fs-uuid --set=root 2bb691c9-...
linux /boot/vmlinuz-2.6.38-8-generic root=UUID=2bb691c9... ro quiet
splash i915.modeset=1 vt.handoff=7
initrd /boot/initrd.img-2.6.38-8-generic
}
menuentry 'Ubuntu, mit Linux 2.6.38-8-generic (Recovery Mode)' --class ubuntu
--class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(/dev/sda,msdos5)'
search --no-floppy --fs-uuid --set=root 2bb691c9-...
echo 'Loading Linux 2.6.38-8-generic ...'
linux /boot/vmlinuz-2.6.38-8-generic root=UUID=2bb691c9... ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.38-8-generic
}
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https://bugs.launchpad.net/bugs/777212
Title:
[Lenovo L420] System boots to garbled display
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