[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete = Expired
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This bug is 1 year and a half old, and it's extremely clear to me that
nobody has been addressing this except for administrative processing.
Administrative processing that typically puts all the burden on the bug
reporter, asking him every 6 months to test the latest dev kernel
while nobody else
Also removing using hotkeys from bug title, as screen brightness
CANNOT BE SET, period.
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Title:
[Toshiba L735-101] screen brightness cannot be
Swâmi Petaramesh, could you please confirm this issue exists with the
latest development release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains,
could you please run the following command in the development release
from a Terminal
Swâmi Petaramesh, to maintain a respectful atmosphere, please follow the
code of conduct - http://www.ubuntu.com/project/about-ubuntu/conduct .
Bug reports are handled by humans, the majority of whom are volunteers,
so please bear this in mind.
Regarding your comments
Nothing personal here Christopher, please accept my apologies if your
felt hurt by my comment, it wasn't my intention.
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Title:
[Toshiba L735-101]
Hi everybody, hi Christopher.
I have the same problem on the same model (toshiba L-735) using ubuntu 12.04,
and i also tested kernel 3.7.0-rc4-raring as you suggested, but it didn't work,
still can't change bright, i have to mention that i didn't applied patches.
Aditionally i also found a post
pedro axel madrid, if you have a bug in Ubuntu, could you please file a new
report by executing the following in a terminal:
ubuntu-bug linux
For more on this, please see the Ubuntu Kernel team article:
https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
the
Why the f. ask people to file a separate bug report for the exact same
problem on the exact same machine ? Just to mark it a duplicate later on
?
I've been filing bugs for Ubuntu for 5+ years, and I would say that I'm
under the impression that reporting kernel bugs in plain useless. The
reporter
@Christopher M. Penalver (#60)
I tried with Ubuntu 10.04 Desktop Live AMD64 per your request. My
Toshiba L735-101 backlight keys have absolutely no visible effect,
whether or not I boot with acpi_osi=Linux acpi_backlight=vendor
So it seems it wasn't working by that time, either.
** Changed in:
Swâmi Petaramesh, thank you for testing Lucid. Could you please test
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc4-raring/ ?
** Tags removed: kernel-bug-exists-upstream-3.6.0-030600rc3
** Tags added: kernel-bug-exists-upstream-v3.6-rc3 lucid needs-upstream-testing
** Changed in: linux
Hi Christopher,
I'm afraid I cannot test a future RC kernel on this machine. I explain :
I use a BTRFS filesystem, and it already happened to me once that,
testing a future kernel modified my BTRFS filesystem features somehow,
then returning back to usual (older) kernel broke my FS, needing me to
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
** Description changed:
- Hi,
-
On my Toshiba L735-101, screen brightness keys do not allow screen
brightness to be set. Actual brightness is always maximum (i.e. much too
bright...).
If I boot normally , screen
Swâmi Petaramesh, thank you for your comments. For regression testing
purposes, could you please test for this problem in a Lucid live
environment via http://releases.ubuntu.com/lucid/ ?
** Changed in: linux (Ubuntu)
Status: Confirmed = Incomplete
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I have the same laptop (toshiba L735) with the same video card (nvidia
315M) and I also experience this bug.
I just tried an ubuntu 10.04 (lucid) live cd which uses this kernel:
Linux ubuntu 2.6.32-24-generic #39-Ubuntu SMP Wed Jul 28 05:14:15 UTC 2010
x86_64 GNU/Linux
The brightness does not
Andrew Jones, if you have a bug in Ubuntu, could you please file a new report
by executing the following in a terminal:
ubuntu-bug linux
For more on this, please see the Ubuntu Bug Control and Ubuntu Bug Squad
article:
Continuing my last comment, I tried the kernel parameters with the lucid
live cd (linux 2.6.32).
Neither of them caused the screen brightness controls to function.
acpi_osi=Linux gave me the same results as without.
acpi_backlight=vendor caused there to be only an nv_backlight
directory in
Hi,
i've got the same problem with my Toshiba L850D, except that backlight had
worked before kernel 3.5.x.
I tried with kernel 3.5.0-17 (default 12.10 configuration) and kernel ppa 3.6.5
with fglrx drivers (required to select the right AMD A8 GPU).
Backlight keys work (I get the slider) , but
bruno pennec, if you have a bug in Ubuntu, could you please file a new report
by executing the following in a terminal:
ubuntu-bug linux
For more on this, please see the Ubuntu Bug Control and Ubuntu Bug Squad
article:
Swâmi Petaramesh, did this problem not occur in a release prior to
Precise?
** Changed in: linux (Ubuntu)
Status: Triaged = Incomplete
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I believe I didn't have this machine before Precise, so I cannot tell
for earlier releases...
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Tried with latest upstream mainline linux-image-3.6.0-030600rc3-generic
, but this kernel simply does not boot on my machine (whatever params I
may try)
Tried with Quantal Alpha 3 new linux-image-3.5.0-13-generic, and the
problem is still the same
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I notice that playing with brightness keys does have an impact on the
value in /proc/acpi/toshiba/lcd (brightness:), however, the actual LCD
brightness doesn't change.
It also changes /sys/class/backlight/toshiba/actual_brightness but not
/sys/class/backlight/toshiba/brightness
Attaching
** Attachment added: /sys/class/backlight
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971750/+attachment/3281681/+files/sys_class_backlight.txt
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** Attachment added: DSDT.dsl
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971750/+attachment/3281682/+files/DSDT.dsl
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Title:
Toshiba
** Attachment added: fwts
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971750/+attachment/3281683/+files/fwts_results.log
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Title:
** Attachment added: fwts_method
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971750/+attachment/3281684/+files/fwts_method_results.log
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** Attachment added: ACPI Video
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971750/+attachment/3281685/+files/dmesg_ACPI_Video.txt
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** Attachment added: dmidecode
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971750/+attachment/3281686/+files/dmidecode.log
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Title:
** Attachment added: /proc/version
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971750/+attachment/3281687/+files/proc_version.txt
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apport information
** Tags added: running-unity
** Description changed:
Hi,
On my Toshiba L735-101, screen brightness keys do not allow screen
brightness to be set. Actual brightness is always maximum (i.e. much too
bright...).
If I boot normally , screen brightness keys have no
** Description changed:
Hi,
On my Toshiba L735-101, screen brightness keys do not allow screen
brightness to be set. Actual brightness is always maximum (i.e. much too
bright...).
If I boot normally , screen brightness keys have no effect at all.
If I boot adding the
Swâmi Petaramesh, thank you for providing the information.
Going backwards in version from v3.6-rc3-quantal, does a mainline kernel
from http://kernel.ubuntu.com/~kernel-ppa/mainline/ exist that allows
you to boot and perform the test?
** Changed in: linux (Ubuntu)
Status: Confirmed =
I finally could test v3.6-rc3-quantal, only by setting
GRUB_TERMINAL=console, then it boots.
Anyway it gives no improvement onto brightness settings, that still
doesn't work.
(OTOH the NVidia drivers won't compile and Compiz will crash in error
when running in low-res mode with Nouveau...)
**
Swâmi Petaramesh, the issue you are reporting is an upstream one. Could
you please report this problem through the appropriate channel by
following the instructions _verbatim_ at
https://wiki.ubuntu.com/Bugs/Upstream/kernel#KernelTeam.2BAC8-KernelTeamBugPolicies.Overview_on_Reporting_Bugs_Upstream
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