How to get root on Ubuntu 20.04 by pretending nobody’s /home

Re:How to get root on Ubuntu 20.04 by pretending nobody’s /home by nexuist on Tuesday November 10, 2020 @10:33PM (#25055230)

This actually used to be a common problem I would have on macOS, especially when docked to an external display. I wonder if these problems are connected somehow.

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Re:How to get root on Ubuntu 20.04 by pretending nobody’s /home by saagarjha on Tuesday November 10, 2020 @10:36PM (#25055244)

I think it’s just a fundamental problem of running a program that is essentially like any other that covers the screen.

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Re:How to get root on Ubuntu 20.04 by pretending nobody’s /home by trilinearnz on Tuesday November 10, 2020 @10:43PM (#25055286)

I can see how that could come about (lumping window manager concerns all into the one bucket), but to me it's security implications make a good case for re-architecting this part of the system. I.e. having a separate part of the OS which marshals access to the visible desktop when transitioning between ACPI states.

For hardware-accelerated compositing situations, it might have something to do with unnecessarily long / out-of order retention of the GPU frame buffer, which I could conceive of as being dismissed as inconsequential in most circumstances.

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