** Tags added: cscc
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Title:
[Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness
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Yea. Interesting. Could be connected to why my screen sometimes resets to
full brightness when using chromium on my X1-18 4.15.0-46-generic
Let me know if I can help in any way.
Best Regards
Marvin Rueppel
Mobile: +41 (0) 79 339 1121
Email : mruep...@gmail.com
On Thu, Apr 11, 2019 at 9:56 AM K
Got it.
Basically we need to use ClutterBrightnessContrastEffect in GSD backlight to
support brightness change for OLED systems.
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Title:
[Lenovo
Hey. Cool.
Yea. I have a key board combination now which uses the xrander command, so
I have a work around. But the oled screen is not working on linux in
general because of the backlight issue. oled has no backlight.
What I find strange is that lenovo is not doing anything.
For example here. On
Sorry for not following this - does this still happen?
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Title:
[Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness
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** Tags removed: bios-outdated-1.36 kernel-bug-exists-upstream-v4.17-rc6
** Tags added: bios-outdated-1.38 kernel-bug-exists-upstream-v4.19-rc4
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Ti
Tried it and no change. The brightness is not affected by the system
settings or keys.
To verify my version
marvin@X1-18:~$ uname -r
4.19.0-041900rc4-generic
and xrandr is still working, but only for a short time until the screen
updates again to full bringhtness. Interstingly the nightlight work
Please give latest mainline kernel (v4.19-rc4) another try, thanks!
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Title:
[Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness
To manage
** Attachment removed: "results.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768208/+attachment/5146961/+files/results.log
** Attachment removed: "dmidecode.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768208/+attachment/5146962/+files/dmidecode.log
** Changed
Ok, Thx for the feedback. Here is what I found so far. I will try and boot
with the different kernel parameter if needed but Ill first have to read up
on how to do that correctly.
1) current Kernel
marvin@marvin-X1-18:~$ uname -a
Linux marvin-X1-18 4.15.0-22-generic #24-Ubuntu SMP Wed May 16 12:15
marvin, regarding comment #30:
1)
>"assuming you only need the log files."
Unfortunately, this isn't the case.
2) Regarding attachments, the article requested separate attachments for
each command (not combined into one). This is to help developers know
what it is they are looking at, versus gue
** Description changed:
The screen brightness cannot be changed.
In 16.04, I could change the brightness via:
xrandr --output eDP-1 --brightness 0.7
WORKAROUND: Execute at a terminal:
xrandr --output eDP-1 --scale 1.25x1.25 --brightness 0.8
+
+ WORKAROUND: https://extensions.gnome
https://extensions.gnome.org/extension/1222/oled-dimmer/
Found a smoother work around. Including keys it works out of the box.
Best Regards
Marvin Rueppel
Mobile: +41 (0) 79 339 1121
Email : mruep...@gmail.com
On Thu, May 31, 2018 at 4:15 PM, Marvin Rueppel
wrote:
> Ok. Here the result:
>
>
>
Ok. Here the result:
assuming you only need the log files.
Executed as stated:
-
ls /sys/class/backlight > backlight
-
grep -r . /proc/acpi > acpi
-
sudo acpidump -o acpidump.txt
-
acpixtract acpidump.txt
- Please note this must be done after the prior command, as
marvin:
1) Regarding the scaling and mouse issues, these are outside the scope of this
report. Hence, feel free to file a separate report about each one by ensuring
you have the package xdiagnose installed, and that you click the Yes button for
attaching additional debugging information via a t
** Tags removed: regression-release
** Tags added: xenial
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Title:
[Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness
To manage notificati
marvin@marvin-X1-18:~$ find /sys/class/backlight
/sys/class/backlight
/sys/class/backlight/intel_backlight
Best Regards
Marvin Rueppel
Mobile: +41 (0) 79 339 1121
Email : mruep...@gmail.com
On Mon, May 28, 2018 at 9:22 AM, Kai-Heng Feng
wrote:
> What's the output of `find /sys/class/backlight
** Description changed:
The screen brightness cannot be changed.
In 16.04, I could change the brightness via:
xrandr --output eDP-1 --brightness 0.7
+
+ WORKAROUND: Execute at a terminal:
+ xrandr --output eDP-1 --scale 1.25x1.25 --brightness 0.8
---
ApportVersion: 2.20.9-0ubuntu7
What's the output of `find /sys/class/backlight`?
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Title:
[Lenovo ThinkPad X1 Yoga 1st Gen] Can't change brightness
To manage notifications abou
Ah ok. I could solve the mouse issue with
xrandr --output eDP-1 --auto --scale 1.5x1.5 --brightness 0.8 --panning
2560x1440
but then the screen looks terrible
Best Regards
Marvin Rueppel
Mobile: +41 (0) 79 339 1121
Email : mruep...@gmail.com
On Mon, May 28, 2018 at 9:03 AM, Marvin Rueppel
w
Ah, thank you very much. It works. I think before I was using wayland thus
why it didnt work.
This command did it.
xrandr --output eDP-1 --scale 1.25x1.25 --brightness 0.8
Using the scaling option also helped solve the scaling issue I had.
However, it showed another bug. When I use this scaling
marvin:
Regarding xrandr, one may use it in 18.04 as per below. Were you stating
that when you attempt to use the command that it worked in 16.04, but
the same command doesn't work in 18.04?
xrandr
Screen 0: minimum 320 x 200, current 1288 x 703, maximum 16384 x 16384
VGA-1 connected primary 1288
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