One of the meanings of the word "trivial" is something that is obvious and dull; "trivial conversation"; "commonplace prose".
No.
Checking a thesaurus I see that synonyms for "trivial" are atomic, commonplace, diminutive, evanescent, everyday, flimsy, frivolous, immaterial, inappreciable, incidental, inconsequential, inconsiderable, insignificant, irrelevant, little, meager, mean, meaningless, microscopic, minor, minute, momentary, negligible, nonessential, nugatory, paltry, petty, piddling*, puny, rinky-dink, scanty, skin-deep*, slight, small, small-town, superficial, trifling, trite, two-bit, unimportant, valueless, vanishing, wee, and worthless.
Synonyms for "obvious" are accessible, barefaced, bright, clear, conclusive, conspicuous, discernible, distinct, distinguishable, evident, explicit, exposed, glaring, in evidence, indisputable, lucid, manifest, noticeable, observable, open, outstanding, overt, palpable, patent, perceivable, perceptible, plain, precise, prominent, pronounced, public, recognizable, self-evident, self-explanatory, straightforward, transparent, unconcealed, undeniable, understandable, undisguised, unmistakable, unsubtle, and visible.
The two words are distinct, their meanings do not overlap.
However, not to get too far from the topic, if we take it you meant to say "obvious" yet again, then we should point out that claiming everything is "obvious" as you do is not offering evidence to support your argument.
Like in "Mycroft usually posts trivialities".
Your ad hominems don't make your argument any stronger.