Confirmed on Samsung Series 7.
I renamed /EFI/Microsoft/Boot/bootmgfw.efi as /EFI/ubuntu/grubx64.efi to
confirm that no keystore or signature validation issues were at work
during the Secure Boot failures. This worked as expected, booting
win2k12 without issue. **Note that this test obviously
I've seen this issue on a Lenovo G550 32bit Core 2 Duo with integrated
Intel chipset since 11.10. The problem survived an upgrade to 12.04.
I've attached another screen capture. I typically encounter the problem
after the machine has been asleep for any length of time.
I can confirm the 'compiz
