Linus G Thiel, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
using acpi_backlight=vendor on Saucy.
Before suspend resume the behaviour of the led-backlight pressing F1 or F2
key is adjustable.
Checking the register `/sys/class/backlight/intel_backlight/brightness` the
range from 0 to 2770 can be operated in 21 steps.
After resume still the full range is
This also happens in newer kernels, at least 3.11, 3.11.1 and 3.12-rc1
are affected.
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https://bugs.launchpad.net/bugs/1197482
Title:
After suspend/resume, screen is dark for brighness
Perhaps this is worth commenting on since I'm using similar hardware
(Intel HD4000 graphics, Aspire S3-391) but I have the same issue with
Kubuntu 13.04, kernel 3.10.4 mainline. This never happened with earlier
kernels.
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This issue is confirmed as well on Fedora 19 with a Macbook Air 6,2. I
have filed a bug upstream based on this information and others.
https://bugs.freedesktop.org/show_bug.cgi?id=67454
** Bug watch added: freedesktop.org Bugzilla #67454
https://bugs.freedesktop.org/show_bug.cgi?id=67454
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I have also tried without passing the i915.i915_enable_rc6 flag, but the
problem persists.
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https://bugs.launchpad.net/bugs/1197482
Title:
After suspend/resume, screen is dark for
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.10 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
** Tags added: kernel-unable-to-test-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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https://bugs.launchpad.net/bugs/1197482
Title:
After suspend/resume,
