I found a solution for the Natty-AMD64 - Version, what is probably suitable for the 32Bit-Version as well:
When the Page of the bootmanager Grub2 comes up, press 'e' to edit the grub commands. Delete the line "set gfxpayload=$linux_gfx_mode" and press then F10 to continue the Booting-Process. Then the Lenovo L420 starts normal without loss of display-resolution. (I tried it first with "nomodeset" as kernel parameter, but there the display-resolution suffered.) Then, you can change the corresponing grub-file permanently: Open the file: "/boot/grub/grub.cfg" as a superuser and delete here again all the entire entries "set gfxpayload=$linux_gfx_mode" near the keywords "menuentry". (This has to be done several times.) Be aware: the command "update-grub" cancels maybe these changes (I didn't try that). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/777212 Title: [Lenovo L420] System boots to garbled display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/777212/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
