Comments (8)
fama
commented on August 22, 2024
1
Same problem here. Running Linux Mint Cinnamon 20.2 version. When I connect over XRDP to the machine, I get the errors:
Running gufw in XRDP session gets the following error:
$ sudo gufw
/usr/bin/gufw: line 2: [: =: unary operator expected
No protocol specified
Unable to init server: Could not connect: Connection refused
No protocol specified
Unable to init server: Could not connect: Connection refused
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_modifier_mask: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gdk-CRITICAL **: 09:11:30.990: gdk_keymap_get_for_display: assertion 'GDK_IS_DISPLAY (display)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.990: _gtk_replace_virtual_modifiers: assertion 'GDK_IS_KEYMAP (keymap)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.991: _gtk_style_provider_private_get_settings: assertion 'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.991: _gtk_style_provider_private_get_settings: assertion 'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed
(gufw.py:74571): Gtk-CRITICAL **: 09:11:30.991: _gtk_style_provider_private_get_settings: assertion 'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed
/usr/bin/gufw-pkexec: line 10: 74571 Segmentation fault (core dumped) python3 ${LOCATIONS[${i}]} $1
The session is X11:
echo $XDG_SESSION_TYPE
x11
The first error is unrelated. When running the first line in /bin/gufw makes the test in the if brackets fail:
echo $(loginctl show-session $(loginctl|grep $(whoami) |awk '{print $1}') -p Type)
Type=x11 Type=x11 Type=x11
I was able to start the gufw preserving the environment (the unary operator error is still there, but the app launched):
sudo -E gufw
/usr/bin/gufw: line 2: [: =: unary operator expected
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costales
commented on August 22, 2024
Hi,
I would say it is because of Wayland. I can't do anything about it. Could
you try x.org?
Thanks.
--
Costales.
…On Mon, May 31, 2021 at 11:36 AM Parinya Teerakasemsuk < ***@***.***> wrote:
The app works fine in a normal session. But when I remoted my desktop
through RDP connection (xrdp) and tried to open the app, nothing happened
even after entering my user password.
OS: Ubuntu 21.04 - 64 bit.
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archerallstars
commented on August 22, 2024
Hi, I would say it is because of Wayland. I can't do anything about it. Could you try x.org? Thanks. -- Costales.
I am using x.org since xrdp supports only x.org, no Wayland. Also, Wayland doesn't support RDP through PipeWire yet.
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dominikborkowski
commented on August 22, 2024
There's a bug filed with Ubuntu itself, we'll see which one gets more traction. There are two issues here:
- startup script parses output of
loginctland it breaks if there are more than one lines (which is expected on xrdp connection). To solve that the second line of/bin/gufwneeds a smallhead -1change:
from:
if [ $(loginctl show-session $(loginctl|grep $(whoami) |awk '{print $1}') -p Type) = "Type=wayland" ]; then
to
if [ $(loginctl show-session $(loginctl|grep $(whoami) |awk '{print $1}') -p Type | head -1 ) = "Type=wayland" ]; then
- Step 1 will not solve segfault, that's caused by polkit policy not having the correct path. Adjust
/usr/share/polkit-1/actions/com.ubuntu.pkexec.gufw.policyand change:
<annotate key="org.freedesktop.policykit.exec.path">/usr/bin/gufw-pkexec</annotate>
To:
<annotate key="org.freedesktop.policykit.exec.path">/bin/gufw-pkexec</annotate>
Hope that helps folks looking for a solution, and it makes it into Ubuntu's repos. As it stands, both 20 and 22 are affected.
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dominikborkowski
commented on August 22, 2024
I can't believe I missed it earlier, the issue is caused by Ubuntu's decision to symlink /bin to /usr/bin. With /bin/ being earlier in $PATH, this means /bin/gufw-pkexec is executed and fails.
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costales
commented on August 22, 2024
Hi Dominik,
Thank you for your feedback.
But that code was removed in early releases:
https://github.com/costales/gufw/blob/master/bin/gufw
In which Ubuntu version happens that? It should be freeze and can't
symlink that directory.
Best regards.
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dominikborkowski
commented on August 22, 2024
Both 20.04.1-1ubuntu1 and 22.04.0-ubuntu1 (latest packages for Ubuntu 20 LTS and 22 LTS) show:
<annotate key="org.freedesktop.policykit.exec.path">/usr/bin/gufw-pkexec</annotate>
Interestingly enough, further investigation reveals that XRDP sessions get a different $PATH order than direct sessions, which explains why this policy seems to cause segfault:
$PATH of a user who logs in via xrdp into XFCE on Ubuntu:
***@***.***:~$ echo $PATH
/sbin:/bin:/usr/bin:/usr/local/bin:/snap/bin
***@***.***:~$ ssh localhost
***@***.***'s password:
Welcome to Ubuntu 20.04.5 LTS (GNU/Linux 5.15.0-1019-aws x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage <https://ubuntu.com/advantage>
Last login: Mon Sep 19 20:34:30 2022 from 127.0.0.1
***@***.***:~$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/snap/bin
***@***.***:~$
Because of the $PATH order, /bin/gufw wins when executed by users who use xrdp. I’ll do some more digging, but that explains why people testing it just via local sessions never encounter this issue.
Cheers!
… On Sep 19, 2022, at 4:18 PM, Costales ***@***.***> wrote:
Hi Dominik,
Thank you for your feedback.
But that code was removed in early releases:
https://github.com/costales/gufw/blob/master/bin/gufw
In which Ubuntu version happens that? It should be freeze and can't
symlink that directory.
Best regards.
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dominikborkowski
commented on August 22, 2024
A small update. The issue ultimately lies with xrdp not reading /etc/environment and having wrong order of elements in $PATH. It was identified by upstream, and fixed in newer versions of Debian and Ubuntu (22 only).
To fix this on earlier versions of Ubuntu, /etc/pam.d/xrdp-sesman will need to include two additional directives (line 2 & 3), the full file should look like this:
#%PAM-1.0
auth required pam_env.so readenv=1
auth required pam_env.so readenv=1 envfile=/etc/default/locale
@include common-auth
@include common-account
@include common-session
@include common-password
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