I tried the STR in comment 0 on Ubuntu 18.04x64 with the following. But I could not reproduce the problem. And from the crash place, it seems related to driver specific problem. - 68.0.2 - 69.0b15 - 70.0a1 (2019-08-20)
Bug 1575205 Comment 1 Edit History
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I tried the STR in comment 0 on Ubuntu 18.04x64 with the following. But I could not reproduce the problem. And from the crash place, it seems related to driver/gpu specific problem. - 68.0.2 - 69.0b15 - 70.0a1 (2019-08-20)