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https://bugs.launchpad.net/bugs/872652
Title:
Display Hang With acpi_backlight=vendor
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Public bug reported:
I have been using Kamal Mostafa's kernels for my Dell Studio 15 for a
few releases. Now, in oneiric, the brightness can not be changed unless
I add acpi_backlight=vendor to the kernel command line. The brightness
adjustment works fine when I make this change.
However, when I
Updating with some questions from Kamal Mostafa and my answers:
> In the report, please make a note of which backlight interfaces appear
> when you run "ls /sys/class/backlight" when you do *not* boot with
> acpi_backlight=vendor, and also when you *do*.
Without acpi_backlight=vendor:
* acpi_vide
I have done a bit more testing with the same kernel (while
acpi_backlight=vendor is enabled).
I can reliably reproduce the issue by running:
xset s activate
Before runnning that command the following worked without issue:
vbetool dpms off; sleep 2; vbetool dpms on
But after running xset s activa
$ uname -a
Linux ironhide 3.1.0-0301rc9-generic #201110050905 SMP Wed Oct 5 09:15:03 UTC
2011 x86_64 x86_64 x86_64 GNU/Linux
$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.1.0-0301rc9-generic root=/dev/mapper/ironhide-root ro
quiet splash acpi_backlight=vendor vt.handoff=7
$ xset s activate
Result:
$ uname -a
Linux ironhide 3.1.0-999-generic #201110040905 SMP Tue Oct 4 09:10:44 UTC 2011
x86_64 x86_64 x86_64 GNU/Linux
$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.1.0-999-generic root=/dev/mapper/ironhide-root ro quiet
splash acpi_backlight=vendor vt.handoff=7
$ xset s activate
Result: display
$ uname -a
Linux ironhide 3.1.0-999-generic #201110040905 SMP Tue Oct 4 09:10:44 UTC 2011
x86_64 x86_64 x86_64 GNU/Linux
$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.1.0-999-generic root=/dev/mapper/ironhide-root ro quiet
splash vt.handoff=7
$ xset s activate
Result: without acpi_backlight=vendor
$ uname -a
Linux ironhide 3.1.0-0301rc9-generic #201110050905 SMP Wed Oct 5 09:15:03 UTC
2011 x86_64 x86_64 x86_64 GNU/Linux
$ cat /proc/cmdline
BOOT_IMAGE=/vmlinuz-3.1.0-0301rc9-generic root=/dev/mapper/ironhide-root ro
quiet splash vt.handoff=7
$ xset s activate
Result: same as 3.1.0-999-gen
> You should be able to run this sequence from a terminal window on your
> external monitor (or while logged in to the laptop
> from another machine) -- it will reflect and affect the laptop display
> brightness. When the laptop screen is stuck in its dark
> state after resume, does the 'brightne
** Tags removed: needs-upstream-testing
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Title:
Display Hang With acpi_backlight=vendor
To manage notifications about this bug go to:
https://bug
The supplied patch does resolve the issue for me when the screensaver
activates automatically.
The issue persists when running "xset s activate".
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The corruption will happen when only one monitor is connected. However,
it appears that in order for the corruption to start happening, I must
have had the HDMI monitor connected previously.
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I think that I have found that this issue is related to using a 2nd
monitor.
Sequence 1 (I am not sure if this causes the display corruption), but
its related to sequence 2:
1. 2nd monitor is not detected when plugged into hdmi (its own issue)
2. I click the "gear" in the top right, then "Display
Public bug reported:
About 40% of the time after resuming my machine, my display shows a
corruption with a black/white flashing screen. The mouse cursor appears
normally. Switching to a vtty and then back to X fixes the issue 100% of
the time. Here is a video showing the issue:
http://www.youtube.
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https://bugs.launchpad.net/bugs/881779
Title:
Dell Studio 15 Display Corruption After Resume
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/lin
The problem persists with kernel linux-image-3.0.0-13-generic, with full
version of 3.0.0-13.21+kamal~fix~stuck~backlight2.
The problem can also sometimes be manifested by disconnecting the HDMI
secondary display. Sometimes the event does not trigger the resolution
change, so I open display proper
Kamal,
I have confirmed all of your findings so far, including:
1. by disabling dpms (xset -dpms) the screensaver does not turn off the
backlight, and the screen does not get "stuck".
2. (1) does not resolve the issue when caused by running "xset s activate"
3. Your, 1st, method of passing the l
Any news on when the #46 kernel will be built?
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https://bugs.launchpad.net/bugs/568611
Title:
Screen brightness control fails on Dell Studio 1558
To manage notifications about this bug
Public bug reported:
Binary package hint: pulseaudio
Using alsamixer, I can select "Input Mic 1" on my Intel sound card
(snd_hda_intel) using alsamixer, but pulse does not see it. Pulse does
see "Analog Microphone" (selects alsa "Mic"), "Internal Microphone"
(selects alsa "Internal Mic") and "Ana
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Title:
Not Able to Select Correct Microphone Input
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David,
Thanks for the help. After doing that, I have the following results after
setting pulse input connnector to:
Analog Microphone -> 100 volume on alsa "Mic", 0 volume on "Internal Mic" (the
mic still pics up some sound at a low level though)
Internal Microphone -> 100 volume on alsa "Intern
David,
I do have three mic inputs. One on the top of the monitor, one below the
touchpad and one 1/4" input. The only mic that I have ever confirmed
works is the one above the monitor.
Alsamixer shows two tunables, "Input Mixer" and "Input Mixer 1". Each of those
items have the following values
David,
That PPA does not have natty packages so I can't try it. Do you have any other
suggestions?
Thanks,
Joshua
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Title:
[Dell Studio 1558] Not
David,
I have the following VREF options, none of them got the mic working:
* HIZ
* 50
* GND
* 80
* 100 (when I select this, it reverts to HIZ)
I do have two alsa inputs "Input Source" and "Input Source 1". The
working mic ("Internal Mic 1") does not work if I set that as the source
on "Input Sou
Yeah, I don't want to keep bugging you either, but 2.6.38-11 #48 kernel
from proposed is currently overriding the latest backlight fix kernel
(2.6.38-11 #47)
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Using 2.6.38-11-generic #48+kamal~mjgbacklight5-Ubuntu, on a Studio
1558, the backlight keys work (I see the notification), but the
backlight levels are no longer changing.
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Here is a copy of a .desktop file that you can use and put in
~/.local/share/applications as a workaround, name the file whatever you
want, for me it is mailto.desktop. mailto, for me, is a script in
~/bin/mailto
[Desktop Entry]
Encoding=UTF-8
Name=mailto
Exec=mailto %u
Terminal=false
X-MultipleAr
Public bug reported:
Binary package hint: openvpn
The /etc/openvpn/update-resolv-conf script does not support multiple DNS
search domains. The attached patch fixes the issue.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: openvpn 2.1.0-3ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-25.44+ka
** Patch added: "add support for multiple dns search domains to
update-resolv-conf"
https://bugs.launchpad.net/bugs/714358/+attachment/1835038/+files/update-resolv-conf.diff
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