Wavy video issue T510 /w discrete gfx & HD+

[cdipierr]

I just purchased a new T510 last week, and amazingly it shipped/arrive in about 3 days. Anyway, it's working fine for the most part. However, on four separate instances, the graphics has gone wavy, sort of jittery like there's a loose connection or something. This happened once on a reboot, twice on the screen coming out of a power saving blank, and once setting the screen resolution to 1920x1080 in Starcraft II (just as a test). Changing screen resolutions or sleeping/resuming resolve the issue. Unfortunately, I can't repeat the problem consistently. I've tried having it power blank the screen every minute, but I just can't seem to force the issue.

I have the HD+ screen, and the discrete NVidia 3100M. I updated the graphics driver via NVidia's site, but it's happened once since.

Has anyone seen an issue like this?

[Colonel O'Neill]

Yes, it's a well-documented issue, and has a solution.

http://forums.lenovo.com/t5/T400-T500-a ... d-p/216852

[cdipierr]

Yes, it's a well-documented issue, and has a solution.

http://forums.lenovo.com/t5/T400-T500-a ... d-p/216852

Right, so I guess I should have mentioned this, but it's been all on AC, not on battery /w power saving options. If I follow the steps listed as a workaround, AC power options are already set to "Max Performance", not "Balanced" (additionally, the power settings show Intel Graphics Power Savings, not nVidia for whatever reason). There was also a driver that supposedly fixed it according to the thread, but my driver is later than the one listed.

In any event, I will look further into power settings going forward. In the meantime, I had to disable Optimus for other reasons (Win Phone 7 emulator won't run) and switched to just the nVidia adapter enabled in BIOS. Need to see if the problem comes back after this.

[Colonel O'Neill]

Oh it's an Optimus model. Then any issues won't be well documented .
The introduction of Optimus probably presents a whole new bag of kinks to iron out.