Onlinelli, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
FWIW
Mine is a different Samsung machine (NP900x3d), my Ubuntu version is
12.10. I've tried with/without acpi_backlight=vendor .
More precisely this is my current boot command line:
luis@sams9:~$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-3.5.0-26-generic root=... ro quiet splash
For reference, can you please paste the output of
grep 'backlight control interface' /var/log/Xorg.0.log
with and without acpi_backlight=vendor
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Why was acpi_backlight=vendor on your command line?
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https://bugs.launchpad.net/bugs/1104529
Title:
Screen brightness does not work properly on samsung chronos
It came with the kernel update.
2013/2/11 Chris Wilson ch...@chris-wilson.co.uk
Why was acpi_backlight=vendor on your command line?
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report.
https://bugs.launchpad.net/bugs/1104529
Title:
Screen brightness
** Tags added: backlight
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https://bugs.launchpad.net/bugs/1104529
Title:
Screen brightness does not work properly on samsung chronos 7
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