I'm also suffering from this same problem. Just tested with 4.7-rc6 (released
today), and the problem has been resolved.
(There are other issues I'm experiencing with this kernel, so I will boot back
to 4.4)
@Stephen, installing another kernel alongside your existing one is
rather easy, and
I just installed a fresh install of 13.10 on this machine, and the problem
persisted. However, changing my GRUB settings to
GRUB_CMDLINE_LINUX_DEFAULT=quiet splash
GRUB_CMDLINE_LINUX=acpi_osi=Linux
now allows me to adjust the brightness, although at boot, it's set to 0. (I'll
look into that
Christopher M. Penalver, thanks for your clear instructions.
I tested with linux-image-3.12.0-031200rc6-generic, and this problem persists.
I also found that when booting the machine, I can adjust the brightness when
GRUB2 is loaded, and then when I boot into Ubuntu, I'm stuck at whatever
Upgraded from 13.4 to 13.10. Suffering from this bug.
For now, set Alt+1 as layout changer.
I look forward to seeing this bug fixed.
And to all those working on Ubunto for free, on their own time, out of
passion - thanks!
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I upgraded to Saucy, running 3.11, and this bug persists.
** Changed in: linux (Ubuntu)
Status: Expired = Opinion
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https://bugs.launchpad.net/bugs/1178727
Title:
8086:0046
Tested with kernel 3.9. Problem exists there too.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
** Tags added: kernel-bug-exists-upstream
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Public bug reported:
What looks like a regression from this bug:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/573984
This issue had been resolved, and I had no problem with 12.04 or 12.10,
but upon upgrading to 13.04, once again, I cannot adjust the screen
brightness. It is stuck at
Done:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1178727
Thanks!
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https://bugs.launchpad.net/bugs/573984
Title:
Screen brightness can not be adjusted in Lucid with Intel
I just upgraded to 13.04, and encountered this bug for the first time ever.
Can't get Empathy to connect.
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https://bugs.launchpad.net/bugs/992619
Title:
Empathy does not login - Error
I just upgraded to Ubunto 13.04 with kernel 3.8.0-19, and this problem seems to
have returned.
Modifiying the line in Grub to GRUB_CMDLINE_LINUX_DEFAULT=quiet splash
acpi_osi= , as suggested in comment #36 does not help. Instead, the OS boots
into an unlit screen.
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Thanks guys for all your work on Ubuntu!
Is this expected to be fixed in Oneiric, or only in Precise?
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https://bugs.launchpad.net/bugs/874774
Title:
could not mount
Is the patch expected to make its way upstream and into the official
Ubuntu kernel? How long is that process usually take?
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https://bugs.launchpad.net/bugs/870326
Title:
I upgraded to 11.10, and with the new kernel, cannot adjust the brightness of
my screen.
adding acpi_backlight=vendor to the boot does not help wither.
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I'm also getting this error when trying to upgrade to 11.04.
Jean-Baptiste Lallement, can you please explain how I can find if I have
xorg-edgers, and how to revert it?
Thanks!
** Attachment added: apt.log
This bug is still present in the latest version - 1.8.0-1ubuntu1 (conky-all).
Can we expect the fix to be included upstream?
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https://bugs.launchpad.net/bugs/569195
Title:
can't read
I have this same problem with my Gateway NV7915u, which uses the same
sound card.
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https://bugs.launchpad.net/bugs/653266
Title:
[Realtek ALC272X] Recording problem
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This did not happen in Lucid, but after running the upgrade to Maverick, I'm
also encountering this issue.
from $ lspci -v:
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated
Graphics Controller (rev 12) (prog-if 00 [VGA controller])
Subsystem: Acer
Forgive the elementary question, but with a GRUB2 bootloader, where does
one make that modification? (i'd of course want to test it in a non-
persistent manner before editing any of the gonfig files).
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Screen brightness can not be adjusted in Lucid with Intel Arrandale graphics
Thanks sas; That solution does not work on my Gateway NV7915u. In fact, it made
things worse. Upon loading, I got several error messages from Gnome-Panel - It
was unable to load WorkspaceSwitcherApplet, WindowListApplet and
ShowDesktopApplet.
And as far as the brightness itself goes - while
When the GRUB menu loaded, I hit e to edit the top entry, and added acpi_osi=
after quiet splash - just like you said. The first tile I tried that, it was
the trash applet that crashed. the second time - the apps I listed, and the
third - nothing. I don't know why it has that kind of impact on
I can also confirm this bug on a Gateway NV7915u, running Ubuntu 10.04, kernel
2.6.32.23-generic.
Saghaulor's workaround of manually modifying
/proc/acpi/video/GFX0/DD02/brightness works for me as well.
Is there some logging that can be enabled in order to see what happens
behind the scenes
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