Comment 71 for bug 573984

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Ethan Shalev (shalev-ethan) wrote :

I just upgraded to Ubunto 13.04 with kernel 3.8.0-19, and this problem seems to have returned.
Modifiying the line in Grub to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=" , as suggested in comment #36 does not help. Instead, the OS boots into an unlit screen.