more like a linux issue.
** Package changed: gnome-power-manager (Ubuntu) = linux (Ubuntu)
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https://bugs.launchpad.net/bugs/776999
Title:
[Lenovo W520]
issue is back for met to.
every time i change brightness it crashes
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Title:
Lenovo W520 laptop freezes on
** Summary changed:
- Lenovo W520 laptop freezes on ACPI-related actions
+ [Lenovo W520] laptop freezes on ACPI-related actions
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brightness adjustment still freezes my system, however i did find some
workarounds
- in gnome power management disable the function to reduce brightness when
running on battery
- you can change the brightness in the nvidia-settings tool
some other observations:
- i even tried kernel 2.6.39 and
I set my BIOS settings to match yours, but still no joy - the laptop
freezes on any operation that involves changing the display brightness.
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Wow. Everything Emil F. wrote applies to my case. I too have W520 with
1000M and when I change to discreet it freezes shortly after logging
into gnome/unity with either nvidia or nouveau driver. However it works
well with integrated card or with discreet before installing
nvidia/nouveau driver.
I updated BIOS to 1.22 but still have the same problem. I'm testing
Kubuntu (11.04) right now, and the same problem is present there as
well.
Robin: Do you have the 2000M card or the 1000M? I'm with 1000M here.
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I have the 2000m nvidia card (w520 model 4284-49G)
using 64 bit ubuntu 11.01
maybe you can try to set the same bios settings
display to discrete autodetect off
intel amt disabled
security chip inactive
memory protection off
virtualization on
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Disabling the Wireless card in the BIOS does not solve the problem for
me. Even with disabled Wireless when the laptop freezes instantly when I
change the brightness in the GUI.
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I removed the nvidia drivers coming with the distro, and installed the
latest 64bit drivers from the Nvidia website (270.41.06) just in case.
Problem still persists.
I then removed those drivers, and installed the nouveau driver via apt.
Problem still persists.
Sumary: This problem does not seem
just remembered i also did a bios update to 1.22 maybe that solved that
prob?
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Title:
Lenovo W520 laptop freezes
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https://bugs.launchpad.net/bugs/776999
Title:
Lenovo W520 laptop freezes on ACPI-related actions
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Forgot to add... this freeze also occurs when the system is switched
from AC to battery power, as well as when it is booted on battery. My
wild guess is that this is related to automatic change to the brightness
settings. Basically the system is not usable on battery power.
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I also had this problem.
when i disable the wireless in bios the laptop works as expected.
This is a bug in the wireless driver.
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very strange,
i reinstalled with wireless disabled, updated, enabled wireless and
everything is ok.
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https://bugs.launchpad.net/bugs/776999
Title:
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