https://bugs.kde.org/show_bug.cgi?id=433019
Kai Uwe Broulik changed:
What|Removed |Added
Resolution|--- |DOWNSTREAM
Status|REPORTED
https://bugs.kde.org/show_bug.cgi?id=433019
--- Comment #9 from jmeron1...@gmail.com ---
I found a solution by editing /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video.use_native_backlight=1"
and updating grub
--
You are
https://bugs.kde.org/show_bug.cgi?id=433019
--- Comment #8 from Kai Uwe Broulik ---
We removed the xrandr code path (which xrandr probably uses) for codd
maintenance and because it wouldn't work on wayland anyway, sorry.
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--- Comment #7 from jmeron1...@gmail.com ---
I use an Nvidia 650m
But it worked before the update to plasma 5.21 earlier today.
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--- Comment #6 from Kai Uwe Broulik ---
So then there's not much Plasma can do unfortunately. What GPU is this? Perhaps
report a kernel or driver bug.
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--- Comment #5 from jmeron1...@gmail.com ---
cat /sys/class/backlight/acpi_video0/brightness
0
cat /sys/class/backlight/acpi_video0/max_brightness
100
echo 5 | sudo tee ls /sys/class/backlight/acpi_video0/brightness
changes the file, but has no
https://bugs.kde.org/show_bug.cgi?id=433019
--- Comment #4 from Kai Uwe Broulik ---
Okay, so that is the fallback driver I think, can you check the contents of
"brightness" and "max_brightness" in that folder?
Also, when you echo into brightness, does it change? e.g.
echo 5 | sudo tee
https://bugs.kde.org/show_bug.cgi?id=433019
--- Comment #3 from jmeron1...@gmail.com ---
ls /sys/class/backlight/
gives a directory called:
acpi_video0
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--- Comment #2 from Kai Uwe Broulik ---
Hmm could that be fallout from removing xrandr brightness?
Can you provide the output of $ ls /sys/class/backlight/
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Nate Graham changed:
What|Removed |Added
CC||k...@privat.broulik.de,
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