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67d34a1
(Get the code!)
For me, 1ubuntu2 partly fixes the problem.
In fact, I had two distinct symptoms, that is :
1) screen was flickering or "blittering", whole parts of the background had erratic moves
2) mouse pointer was "flipping", that is the pointer was switching from one point to another one about 20 pixels on the lower right
1) is fixed by 1ubuntu2. It was associated with the "underrun on pipe B" message in the log, and this error has disappeared as well.
2) remains. It is associated with another message in the log, that is not an error message (EE) but an information (II):
(II) intel(0): I2C device "LVDSDDC_C:ddc2" registered at address 0xA0.
(II) intel(0): I2C device "LVDSDDC_C:ddc2" removed.
I opened a new bug specific to the second problem (#264228). Should I mark it as a duplicate of this one, or should this one remain closed and work go on #264228 ?