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Lubuntu 21.04
5.11.0-25-generic

Laptop with auxiliary monitor.
Normal power-on is both displays the same with identical sign-on dialogue boxes, with user name shown in full,
Background is default - a pleasant flowery display in mottled greens and browns.

Power on an hour ago.
It showed a new dialogue box with user shown as first name on the auxiliary monitor only
Colors were dark green/blue with a symbol of a flame to the left of the dialogue box.
Dark neutral color on the laptop.

Cycled the power.
Both displays came up as normal.
Security upgrade prompted, and installed.

Was that a security threat ?
Is there anything else I should do ?

John.
07-22-2021, 01:15 AM
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