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I updated to 11.10 this week and I've been hitting my head against the wall ever since. I have a two year old Lenovo x301. It shouldn't be "underpowered" but Unity grinds it to a halt.

Memory: 3.8 GiB Processor: Intel® Core™2 Duo CPU U9400 @ 1.40GHz × 2

What gives?

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The problem might be your VGA adapter. What is your VGA model and vendor? Or is it an onboard one?

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Not sure how to find that in 11.10. xorg.conf is gone ... – Amanda Oct 20 '11 at 17:56
You could try to get some information on the website. I'll look now, and tell you what I can find. – Shahe Tajiryan Oct 20 '11 at 18:22
Seems I can't find anything usable on the site, I do think that your product does not have Linux drivers. Could you check for restricted drivers? search for "Additional Drivers" in the Dash Home and let it check if there are any drivers for your Notebook. – Shahe Tajiryan Oct 20 '11 at 18:34
It works fine with Gnome, but fails in Unity. It doesn't make sense for this to be about video drivers. However: no, there aren't any proprietary drivers installed. – Amanda Oct 20 '11 at 20:26
up vote 0 down vote accepted

The problem seems to have resolved itself. Weird.

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