https://bugs.freedesktop.org/show_bug.cgi?id=86539
--- Comment #1 from Pierre Moreau <[email protected]> --- With the main card begin the 9400M we have: * 0x61c084 = 0x0 on the 9600M GT; * 0x61c084 = 0x400 on the 9400M. so only one registration for nv_backlight. However, after setting under Mac OS the 9600M GT as the main card we get: * 0x61c084 = 0x400 on the 9600M GT; * 0x61c084 = 0x400 on the 9400M. thus leading to a double registration. The NVidia driver is always forcing POST which sets 0x61c084 to 0x0 on the 9600M GT, solving the problem. Should we do something similar in Nouveau or try some other ways to go around it? By the way the nv_backlight is useless on this setup as it does nothing: the backlight is controlled by the mux, and thus by the apple_gmux driver. Would it make sense to hide the nv_backlight in this case? -- You are receiving this mail because: You are the assignee for the bug.
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