I have uploaded a revised Natty kernel to the PPA, which should fix the regression some users have reported since the last update (this revision re-instates the enabling of acpi_backlight=vendor parameter by default). The new 'kamal2' Natty kernel (linux - 2.6.38-11.48+kamal2~mjgbacklight5) is queued to build and should become available within the next several hours. Thanks Joshua, Joe, and Lawrence for reporting and helping to diagnose the problem.
(Its unclear whether Oneiric also needs "acpi_backlight=vendor"; I'll apply the same fix there if any Oneiric user of the backlight PPA advises me that booting with that kernel parameter fixes their system).
I have uploaded a revised Natty kernel to the PPA, which should fix the regression some users have reported since the last update (this revision re-instates the enabling of acpi_backlight= vendor parameter by default). The new 'kamal2' Natty kernel (linux - 2.6.38- 11.48+kamal2~ mjgbacklight5) is queued to build and should become available within the next several hours. Thanks Joshua, Joe, and Lawrence for reporting and helping to diagnose the problem.
https:/ /launchpad. net/~kamalmosta fa/+archive/ linux-kamal- mjgbacklight
(Its unclear whether Oneiric also needs "acpi_backlight =vendor" ; I'll apply the same fix there if any Oneiric user of the backlight PPA advises me that booting with that kernel parameter fixes their system).