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Since 21th of October (since 3.6.2) I'm getting that error sometimes at my ThinkPad T420 with an integrated intel i915 graphic - wasn't aware of it before.
It is safe to ignore it ?
- -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3