[lubuntu] glitchy graphics and lines on screen, intermittent


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I've recently updated from 15.04 to 15.10, and since then I will get these glitches and lines across the screen intermittently. Very occasionally (and I haven't worked out how to reliably replicate this) the screen will go black for a second then the entire screen will be garbled. Most of the time I'll open an application and it'll mess up like in the screenshots attached below.

2015-12-30-000005_1024x600_scrot.png2015-12-31-111429_1024x600_scrot.png2015-12-31-111524_1024x600_scrot.png

Is it related to this bug: https://bugs.launchpad.net/ubuntu/+s...l/+bug/1507255 or is it something else? Any advice you may have to help me fix this will be greatly appreciated. Thanks!

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I've recently updated from 15.04 to 15.10, and since then I will get these glitches and lines across the screen intermittently. Very occasionally (and I haven't worked out how to reliably replicate this) the screen will go black for a second then the entire screen will be garbled. Most of the time I'll open an application and it'll mess up like in the screenshots attached below.

2015-12-30-000005_1024x600_scrot.png2015-12-31-111429_1024x600_scrot.png2015-12-31-111524_1024x600_scrot.png

Is it related to this bug: https://bugs.launchpad.net/ubuntu/+s...l/+bug/1507255 or is it something else? Any advice you may have to help me fix this will be greatly appreciated. Thanks!


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