Ubuntu
linux package

  1. Bug #814325
  2. Comment #71

Comment 71 for bug 814325

Revision history for this message
Chris Van Hoof (vanhoof) wrote : Re: fuzzy and corrupted display with update in natty-proposed

Quick update on today's testing.

In addition to the machines outlined in Comment #50 we were able to locate two Lenovo T510's in-house. One configuration is Intel graphics only, the other is a Intel/nVidia switchable configuration. Unfortunately only the /latest/ T510's provide the ability to switch graphics cards within the BIOS[0], Intel is disabled and nVidia is the default GPU used. Our T510 switchable config does not expose this option in the BIOS and there is not a BIOS update available which would expose this functionality.

We have not been able to reproduce this same behavior on either of the T510's we have access to.

Based on our testing to date, this issue does appear to be limited to one of the following:

 * /Newer/ Lenovo T510 (potentially T410) configurations with switchable graphics, using the Intel GPU as default GPU
 * Arrandale based platforms with switchable graphics using the Intel GPU as default GPU

The large majority of platforms the HWE Team has seen with switchable graphics configurations have been SandyBridge based, which in either the Intel or nVidia test case cannot reproduce this behavior.

--chris

[0] -- http://www.thinkwiki.org/wiki/Intel_HD_Graphics