Public bug reported:
$ 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.
** Affects: nvidia-common (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1061560
Title:
hybrid-detect does not work with i386 package architecture
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