Thanks for the attitude. I wasn't "[advising] on the contents of the
article", but trying to be a good citizen in pointing out a bug when I
got to the vendor backlight stage of the process.
I still don't see the point of acpi_backlight=vendor then, but as we're
not going to be addressing that, th
I meant "If neither that" btw.
I curse twitter because I cannot correct typos. Launchpad seems as
painful.
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https://bugs.launchpad.net/bugs/1516370
Title:
Vendor backligh
Let's not confuse things. This bug is with Lenovo vendor backlight, and
is present on the latest kernel.
The guidance on investigating backlight issues recommends using
acpi_backlight=vendor. If neither than nor nvidia or nouveau work, then
it really doesn't help the situation. Let's see if we
I haven't tested that original issue (for which I will open a separate
bug when I have time to investigate further) against different nvidia
drivers.
Given that this issue is about what happens when I do
acpi_backlight=vendor, do I need to investigate that for this bug?
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Wow, that was simple enough (at least it was on my 14.10 install on
another partition, where I didn't have virtualbox etc installed).
4.3-wily amd64 packages installed, and bug still exists.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Tags added: kernel-bug-exists-up
For anyone interested in the intel backlight. That still doesn't work
on 4.3 either, but I've not dug into that.
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https://bugs.launchpad.net/bugs/1516370
Title:
Vendor bac
BTW: The "bold guess in the title", won't make sense now, as the title
was originally saying that I thought a register was being written
incorrectly, until I realised that the backlight does work correctly and
it seems to be hotkeys related.
If the implementation is idea_laptop.c then I'm taking a
Public bug reported:
I've taken a bold guess in the title of this bug.
While investigating why on 14.04 LTS, I have working backlight on the
latest 3.13 kernel, but not on the 3.16, I tried acpi_backlight=vendor.
With default boot parameters, I just get
/sys/class/backlight/intel_backlight/, and
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