[Kernel-packages] [Bug 1537324] Re: No brightness control on Samsung NP530U4E-K01RU

2016-01-26 Thread Christopher M. Penalver
** Tags removed: kernel-bug-exists-upstream ** Tags added: cherry-pick kernel-fixed-upstream ** Changed in: linux (Ubuntu) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1537324] Re: No brightness control on Samsung NP530U4E-K01RU

2016-01-26 Thread Andrey Makeev
Testing with 4.5-rc1 results: /sys/class/backlight/acpi_video0/ appeared. Brightness changes if i echo the value to /sys/class/backlight/acpi_video0/brightness Tracked it down to this kernel.org bug report: https://bugzilla.kernel.org/show_bug.cgi?id=108971 It seems to be exactly the same issue.

[Kernel-packages] [Bug 1537324] Re: No brightness control on Samsung NP530U4E-K01RU

2016-01-25 Thread Christopher M. Penalver
Andrey Makeev, the latest mainline kernel (4.5-rc1) was released two days ago. Could you please test this and advise to the results? ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is

[Kernel-packages] [Bug 1537324] Re: No brightness control on Samsung NP530U4E-K01RU

2016-01-25 Thread Joseph Salisbury
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix

[Kernel-packages] [Bug 1537324] Re: No brightness control on Samsung NP530U4E-K01RU

2016-01-25 Thread Andrey Makeev
I've tested it on v4.4-wily and v4.4-rc8-wily. Same problem: /sys/class/backlight/intel_backlight/brightness changes, but the actual screen brightness doesn't. ** Tags added: kernel-bug-exists-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this

[Kernel-packages] [Bug 1537324] Re: No brightness control on Samsung NP530U4E-K01RU

2016-01-22 Thread Andrey Makeev
** Summary changed: - No brightness control on Samsung NP530U4E-K10RU + No brightness control on Samsung NP530U4E-K01RU ** Description changed: Backlight control does not work, but there are entries in /sys/class/backlight. - Laptop model is: NP530U4E-K10RU + Laptop model: NP530U4E-K01RU

[Kernel-packages] [Bug 1537324] Re: No brightness control on Samsung NP530U4E-K01RU

2016-01-22 Thread Andrey Makeev
** Description changed: Backlight control does not work, but there are entries in /sys/class/backlight. Laptop model: NP530U4E-K01RU Video adapter: Intel HD graphics 4000 I've tried all the suggestions from https://wiki.ubuntu.com/Kernel/Debugging/Backlight kernel