hybrid-detect changes file in /usr

[Stéphane Graber]

[Impact]
hybrid-detect writes to /usr/share, which not be written to after package installation. hybrid-detect may fail to function properly if used on hybrid systems with read-only /usr partitions.

[Fix]
Write to /var/lib instead.

[Regression Potential]
Scope of possible regression is very limited; this only affects the hybrid-detect utility, which is only relevant on certain kinds of hybrid systems.

[Original Report]
When running debsums on my system I noticed the following entry:
debsums: changed file /usr/share/nvidia-common/last_gfx_boot (from nvidia-common package)

I tracked it down to hybrid-detect changing that file at runtime. This is definitely wrong as nothing should ever write to /usr after package installation. I'd suggest moving this to /var/lib instead.

[Launchpad Janitor (janitor)]

This bug was fixed in the package nvidia-common - 1:0.2.45

---------------
nvidia-common (1:0.2.45) quantal; urgency=low

  * Don't write to /usr/share for hybrid graphics
    detection, use /var/lib instead (LP: #976779).
 -- Alberto Milone <email address hidden> Tue, 15 May 2012 14:30:07 +0200

[Adam Conrad (adconrad)]

Hello Stéphane, or anyone else affected,

Accepted nvidia-common into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/nvidia-common/1:0.2.44.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please change the bug tag from verification-needed to verification-done. If it does not, change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Bryce Harrington (bryce)]

I've installed this package on a precise-proposed/nouveau (non-hybrid) system, installed nvidia-173 through jockey, and confirm the fix has taken effect, with the file now existing in /var/lib. Running hybrid-detect on this system does not crash, and produces correct output.

[Chris Halse Rogers (raof)]

Hello Stéphane, or anyone else affected,

Accepted nvidia-common into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/nvidia-common/1:0.2.44.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please change the bug tag from verification-needed to verification-done. If it does not, change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Launchpad Janitor (janitor)]

This bug was fixed in the package nvidia-common - 1:0.2.44.2

---------------
nvidia-common (1:0.2.44.2) precise-proposed; urgency=low

  * NvidiaDetector/nvidiadetector.py: When a package has multiple words
    separated with -'s, use only the last element as the driver version.
    (LP: #1047681)

nvidia-common (1:0.2.44.1) precise-proposed; urgency=low

  [Alberto Milone]
  * NvidiaDetector/nvidiadetector.py:
    - Add support for -experimental flavours (LP: #1047681).
  * Don't write to /usr/share for hybrid graphics
    detection, use /var/lib instead (LP: #976779).

  [Bryce Harrington]
  * nvidia-common.templates: Fix lintian error (trailing whitespace)
 -- Bryce Harrington <email address hidden> Thu, 27 Sep 2012 22:27:56 -0700

[Chris Halse Rogers (raof)]

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.