Red Hat Bugzilla – Bug 547554
Backlight becomes dimmer when nouveau sets mode on Dell M6500
Last modified: 2013-01-10 02:48:47 EST
Using F12 kernel CVS. Once nouveau loads, the backlight becomes significantly dimmer. The ACPI backlight interface still allows moving between 0 and 100% brightness, but 100% is not as bright as previously.
Created attachment 378377 [details]
Kernel output with drm.debug=15
Created attachment 378378 [details]
Created attachment 378381 [details]
Actual kernel output
Fixed in -updates.