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HBRV-based default selection of backlight control strategy didn't work well, at least the X41 defines it but doesn't use it and I don't think it will stop there. Switch to a white/blacklist. All models that have HBRV defined have been included in the list, and initially all ATI GPUs will get ECNVRAM, and the Intel GPUs will get UCMS_STEP. Symptoms of incorrect backlight mode selection are: 1. Non-working backlight control through sysfs; 2. Backlight gets reset to the lowest level at every shutdown, reboot and when thinkpad-acpi gets unloaded; This fixes a regression in 2.6.30, bugzilla #13826 Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Reported-by: Tobias Diedrich <ranma+kernel@tdiedrich.de> Cc: stable@kernel.org Signed-off-by: Len Brown <len.brown@intel.com> |
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