4 Feb
2019
4 Feb
'19
11:38 p.m.
Slávek Banko composed on 2019-02-04 23:02 (UTC+0100):
Felix Miata wrote:
>
https://www.maketecheasier.com/take-screenshot-of-login-screen-linux/
> is the closest I have found to instructions to use ImageMagick to get
> one, but tdm seems to be different from lightdm and gdm such that I
> can't figure out what to change. I tried logging in and grepping
> XAUTHORITY from set, but it apparently cannot be found there.
> I want a fullscreen screenshot that has the
integrated default theme's
> menu expanded to show the selection of session types. Can anyone here
> help?
You can search in: /var/run/xauth/
I don't see any connection. e.g. in Stretch I see (only):
/var/run/xauth/A:0-TZtcAa
44 binary bytes owned by root and containing string "MIT-MAGIC-COOKIE-1". On
openSUSE it's the same
except for the last 6 characters of the filename. How can that be translated to
/var/lib/gdm/$DISPLAY.Xauth
or
/var/run/lightdm/root/$DISPLAY
???
Would it be simply
/var/run/xauth/$DISPLAY
or something else?
I tried putting
#! /bin/bash
chvt 7
DISPLAY=:0 XAUTHORITY=/var/run/xauth/$DISPLAY xwd -root
in the script, but the resulting output image is always 0 bytes, and error messages:
No protocol specified
xwd: unable to open display ':0'
I tried on Tubuntu 18.04/14.1 with same result.
--
Evolution as taught in public schools is religion, not science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/