Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: nvidia-graphics-drivers-331 (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1333431
Title:
[regression] [Dell Latitude E6520] [NVS 4200M] Screen won't turn off,
and isn't redrawn on resume
Status in “nvidia-graphics-drivers-331” package in Ubuntu:
Confirmed
Bug description:
In Trusty with the nvidia-331 (default) driver selected, the system
won't suspend, and won't turn the screen off when powersave activates;
the screen instead briefly blanks, flashes the Nvidia logo, then goes
to the password entry box.
On unlocking the system after this has happened (but not after a screen lock
too brief to reach the powersave timeout), the screen goes black, then
reappears in pieces as applications redraw.
(Workaround for this part: opening and closing the Dash (Windows key twice)
redraws the whole screen.)
This did not happen in Saucy (nvidia-319); it also doesn't happen with
the Nouveau driver (though bug 1333417 does, so that's not a
workaround).
Possibly relevant: this system has an outdated BIOS because the
updater requires Windows (see bug 1244312).
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: nvidia-331 331.38-0ubuntu7
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
Uname: Linux 3.13.0-29-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Jun 23 21:57:54 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-01-25 (880 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
SourcePackage: nvidia-graphics-drivers-331
UpgradeStatus: Upgraded to trusty on 2014-04-29 (55 days ago)
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