Ubuntu
nvidia-common package

hybrid-detect does not work with i386 package architecture

Bug #1061560 reported by linuxball on 2012-10-04

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	nvidia-common (Ubuntu)	New	Undecided	Unassigned

Bug Description

$ lsb_release -rd
Description: Ubuntu 12.04.1 LTS
Release: 12.04

$ apt-cache policy nvidia-common
nvidia-common:
  Installed: 1:0.2.44.2
  Candidate: 1:0.2.44.2
  Version table:
*** 1:0.2.44.2 0
        500 http://de.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages
        100 /var/lib/dpkg/status
     1:0.2.44 0
        500 http://de.archive.ubuntu.com/ubuntu/ precise/main i386 Packages

Hardware:
LENOVO ThinkPad T520 (Type: 4240-6AG) with Nvidia Optimus technology
BIOS Setup -> Config -> Display -> OS Detection for NVIDIA Optimus: [Disabled]

Expected behavior for i386 package architecture:

If "BIOS Setup -> Config -> Display -> Graphics Device" was changed from "Discrete Graphics" (NVIDIA NVd9) to "Integrated Graphics" [Intel Sandybridge Mobile (GT2+)] then hybrid-detect should look for the master link of an alternative for the "i386-linux-gnu_gl_conf" mesa driver and set the respective link using "update-alternatives".

If "BIOS Setup -> Config -> Display -> Graphics Device" was changed from "Integrated Graphics" [Intel Sandybridge Mobile (GT2+)] to "Discrete Graphics" (NVIDIA NVd9) then hybrid-detect should look for the master link of an alternative for the "i386-linux-gnu_gl_conf" nvidia driver and set the respective link using "update-alternatives".

Actual behavior for i386 package architecture:

  In both cases it does not recognize the "i386" package architecture. The respective log output in /var/log/upstart/hybrid-gfx.log is:
  Gfx was changed in the BIOS
  i386 is not supported for hybrid graphics

Fix:

Most probably due to a "copy and paste" typo hybrid-detect.c checks two times for the "amd64" package architecture (instead of "i386" in line 192). The attached patch will fix this.

Tags:

Revision history for this message

linuxball (linuxball) wrote on 2012-10-04:

Fix for the above reported bug Edit (515 bytes, text/plain)

Revision history for this message

Ubuntu Foundations Team Bug Bot (crichton) wrote on 2012-10-04:

The attachment "Fix for the above reported bug" of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report.

[This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.]

tags:

added: patch