Comment 7 for bug 1827428
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| Rachel Greenham (rachel-strangenoises) wrote | #7 |
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35a32c5
(Get the code!)
A bit more detail to reproduce this that I think was missed out before:
It happens when the configured desktop mode/scaling is set to a fractional value. You can have that experimental xrandr setting set, but be configured to scaling of 100% or 200% (but see below on latter) and you won't see this problem. Set it to 150%, log out, log in again, you should see it. That applies to my experience anyway on the AMD graphics system.
NB: Today when I tried to confirm this, I found that it would ignore my setting scaling to 200% on login, and would instead go in as if it was 100%, which would also be what it showed in the display settings dialogue itself. I'm pretty sure that wasn't the case earlier. I am able to select and use 200% in the session, it just won't be remembered. This sounds like a separate problem though. The problem *here* is what happens when scaling is set to a fractional value like 150% (which it does seem to have no problem remembering).
It also means that a kind of workaround is to set scaling to 200% or 100% before logging out, then set it back to the 150% you want after logging in again. The problem is only when you're logging in and the setting is already fractional, so the switch in resolution happens during login.