** Reply to message from Daniel van Vugt <1975...@bugs.launchpad.net> on Wed,
25 May 2022 06:15:35 -
I get an error running apport-collect. I am beginning to think that the last
update to this system went wrong. There are other problems comming up which I
did not have before.
I have now tried the display with another 22.04 install and that works
OK.
So I think this problem report should be closed.
bob1@Juptier:~$ apport-collect 1975557
ERROR: connecting to Launchpad failed: Unable to find the server at
launchpad.net
You can reset the credentials by removing the file
"/home/bob1/.cache/apport/launchpad.credentials"
bob1@Juptier:~$
> The difference between 21.10 and 22.04 might just be that we now default
> to Wayland instead of Xorg. So the display subsystems are different.
>
> Please run this command to gather more information:
>
> apport-collect 1975557
>
> And to save time in future please use the 'ubuntu-bug' command to report
> new bugs.
>
> ** Tags added: jammy
>
> ** Package changed: xorg (Ubuntu) => gnome-shell (Ubuntu)
>
> ** Changed in: gnome-shell (Ubuntu)
>Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1975557
>
> Title:
> blank screen does not turn off display backlight
>
> Status in gnome-shell package in Ubuntu:
> Incomplete
>
> Bug description:
> I updated a system from 21.10 to 22.04 and noticed that when the
> screen is blanked by no keyboard or mouse activity that the backlight
> in the VGA monitor is still on. The "settings->Displays" has "Unknown
> Display" which I assume means the system does not know what commands
> to send to the monitor to shut it off. I booted a live DVD of 21.10
> and the settings has the VGA display as 'AOC 22" ' which is correct
> and the screen blanking works correctly. So it seems that the
> definition for the AOC displays have been removed from 22.04.
>
> This behavior is different on Ubuntu 21.10, the VGA display is blank and the
> backlight is off. A minor nit is on 21.10 the "settings->Displays" shows the
> VGA display manufacture name, on 22.04 the
> VGA display manufacture name is "Unknown Display".
>
> I have discovered that the settings have the following options
>
> "settings->Power->Screen Blank" with a time value to be selected and the
> following text on the next line "Turns the screen off after a period of
> inactivity"
>
> "settings->Privacy->Screen->Blank Screen Display" with a time value to be
> selected and the following text on the next line "Period of inactivity after
> which the screen will go blank"
>
> The two options have different actions but seem to be connected because
> changing the time on one changes the time on the other.
>
> My guess is that the update changed the action for Ubuntu 22.04. I
> would like the 21.10 behavior, that is to turn off the VGA display not
> just blank the display when selecting the "settings->Power->Screen
> Blank" for 22.04.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1975557/+subscriptions
--
Robert Blair
Tell me and I forget. Teach me and I remember. Involve me and I learn. -- Xun
Kuang (Confucian philosopher)
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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1975557
Title:
blank screen does not turn off display backlight
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1975557/+subscriptions
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