Comment 9 for bug 872652

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Joshua Rubin (rubixconsulting) wrote : Re: Display Hang With acpi_backlight=vendor

$ uname -a
Linux ironhide 3.1.0-0301rc9-generic #201110050905 SMP Wed Oct 5 09:15:03 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.1.0-0301rc9-generic root=/dev/mapper/ironhide-root ro quiet splash vt.handoff=7

$ xset s activate
Result: same as 3.1.0-999-generic, no backlight controls, but also no display hang coming out of dpms.