Paulo Marcel Coelho Aragão, as this report is closed, if you would like your
issue addressed, report your problem by using the computer the problem is
reproducible with, and provide necessary debugging logs by filing a new report
with Ubuntu via a terminal:
ubuntu-bug linux
Please feel free to
This bug is still present in Xubuntu 18.04.
Workaround https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/1298578/comments/7 does restore maximum brightness, but not
the actual brightness level before suspending.
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Erik Konstantopoulos, please see
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/1298578/comments/10 .
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Invalid
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#9 is a workaround not a solution.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Invalid => Confirmed
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#9 is a workaround not a comment
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https://bugs.launchpad.net/bugs/1298578
Title:
Brightness is low after resume from suspend, can't be increased
Original reporter -> https://launchpad.net/~konstigt-deactivatedaccount
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Invalid
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I have the same problem.
One thing I've noticed is that opening the GUI in Settings Brightness
and setting Brightness to 100% changes the files
/sys/class/backlight/acpi_video0/brightness and
/sys/class/backlight/acpi_video0/actual_brightness, adding the value
15 (in my system).
This does
Typical Ubuntu-style, lots of problem reports for this problem since
13.10 but no fixes :(
I think this happens more if you use two monitors and for example
suspend the computer with an external monitor as primary display and
secondary/laptop off and then wakeup from suspend without this external
This worked for me (Intel card):
sudo gedit /usr/share/X11/xorg.conf.d/20-intel.conf
Add:
Section Device
Identifier card0
Driver intel
Option Backlight intel_backlight
BusID PCI:0:2:0
EndSection
Source:
As a temporary work around, you can change virtual terminals (ctrl-alt
F1 through F6) and adjust your brightness there if you have hardware
keys, then switch back to your X session on VT7 with ctrl-alt F7. Still
cant change brightness inside the X session with hardware keys or power
manager,
Any workaround yet? This still happens regularly and is really annoying.
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https://bugs.launchpad.net/bugs/1298578
Title:
Brightness is low after resume
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New = Confirmed
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Any possible workaround?
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https://bugs.launchpad.net/bugs/1298578
Title:
Brightness is low after resume from suspend, can't be increased
Status in
** Description changed:
In Settings Brightness Lock the brightness is set to 100%. Also dim
is not selected.
But, after resuming from suspend, the brightness is very low and I
cannot increase it. Sliding that scaler does nothing and the same with
the laptops FN-keys, they do
** Package changed: xorg (Ubuntu) = xserver-xorg-video-intel (Ubuntu)
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https://bugs.launchpad.net/bugs/1298578
Title:
Brightness is low after resume
Well that was unexpected. The ACPI backlight failing. /sarcasm
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https://bugs.launchpad.net/bugs/1298578
Title:
Brightness is low after resume from
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