Gareth Evans composed on 2023-06-29 22:00 (UTC+0100):
>> Stephen P. Molnar wrote:
...
> Stephen said this happened "when [he] logged in."
> Stephen, assuming you actually logged in before the issue occurred, did you
> log in to a login/display manager such as LightDM or did you log in to a
> console/CLI prompt and subsequently run startx, whereupon the issue occurred?
> If the former, either X or Wayland is running at the point of "login
> screen", isn't it? At some "standard" (high-ish, working) resolution?
> Doesn't this suggest a display configuration problem rather than a hardware
> issue?
A display configuration problem should not result from shutting down one day and
booting again next day. So, the state of the PC "when logged in" matters. Was
it a
fresh boot? A resume from hibernation? Resume from sleep?
Given he got 'into rescue mode', it probably means nomodeset and/or other
failsafe
X parameters that could preclude compositing that his DE depends on. It's pretty
important he report what his GPU is. If it's an NVidia, we need to know whether
he's using NVidia's proprietary drivers. It could be that before his last
successful session exit some automatic updates were applied to break a
proprietary
driver installation. In that case, booting a prior kernel could be a workaround
or
solution.
Indeed, if his words were meant literally, he may have been at a GUI login
screen,
but he could have meant login at a shell prompt. From a shell prompt startx or
equivalent causing the black screen means any part of DM or DE or WM or personal
settings could be at fault. If at a GUI screen, he should be able to select some
other session type than his normal one to log into. Other type can mean both
switching between Wayland and Xorg, and/or among other installed DEs or WMs.
This
could result in a successful session that might point to a problem with his
personal settings, or the DE or WM session type he normally uses. We need to see
more details about his normal login process, what actually transpired, and what
his normal DE or WM is.
There are multitudes of ways to get a black screen. The more info, the better
and
faster a solution might be found.
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata
