What the title says. Version 1.24.0 on Chimaera. Print preview in Atril shows a progress bar quickly and then nothing, it just goes back to showing the document as is. You can fix this by installing evince. I thought I'd post in case anyone encounters this in the future.

This is driving me crazy. I am making a bash script that is given one or more files and will search with location for other locations that the same filename shows up. So I need to make this work given the whole filename. I intend to use this script as a custom Thunar action and it actually works fine for files that don't have square brackets in their name. But I have a file named:

5481[2].jpg (image).html

I want to use locate to search in what other locations it exists. Specifically

locate -b "(image).html"

will show the file, so the file is in my mlocate db. But trying to search with

locate -b "5481[2].jpg (image).html" 

returns zero results!

Even leaving the bash script aside for a while and simply opening a terminal and typing "locate" then the start of the filename and tab completing it, which escapes the filename with backslashes, still returns zero results while it works for any other file without square brackets.

What gives? What's so special about these square brackets that locate refuses to use them in a search expression? The same issue applies to all my files with square brackets in their filenames.

My only other option would be to find a way to turn a filename into a regex and then user the regex mode of locate. Is there a command that I can filter a filename through to turn it into a proper regex?

Thank you.

I'm assuming gvfs is what Thunar uses when I go to a url like sftp://user@123.123.123.123/some/path. Thunar seems able to browse sftp locations with gvfs, gvfs-backends, gvfs-common, gvfs-daemons and gvfs-libs installed but double clicking files to open with Mousepad will simply open an empty document called Untitled 1 as if I just opened the application without any arguments. Trying to open files with Mousepad from the terminal like so:

mousepad "sftp://user@123.123.123.123/some/path/filename.txt"

will give:

Invalid URI: "sftp://user@123.123.123.123/some/path/filename.txt"

I saw somewhere else on the internet that I should install gvfs-fuse as well but it didn't seem to make any difference.

Any ideas please? :-/

Hello. I already solved this issue but it took me too long so I thought I'd document the solution here if anyone else has the same problem.

Hardware: https://ubuntu.com/certified/202111-29708/20.04%20LTS
Renoir graphics with Ryzen 5 5625U.

Symptoms:

• /sys/class/backlight/acpi_video0/brightness exists and contains values and can be changed but will not change the actual brightness on the laptop panel.

• Whenever a value is written to the above file, the Display Settings pop up. Yes, the actual xfce4-display-settings program is started. I'm assuming that it detects a display change. It even pops up if you use the Fn buttons to change the brightness if you have given control of the brightness to xfce4-power-manager (which you should).

• The Fn keys will emit "dell_wmi: Invalid length of WMI event" but this is a red herring, ignore this sort of warning.

• Your laptop's panel will only go up to 70Hz or 77Hz.

I tried many of the solutions that float around the web and only a combination of two of them plus something that I found myself in synaptic worked. Specifically:

(As root)

• Enable backports and install the kernel 5.18.0-0.bpo.1-amd64 (headers and image)

• Edit /etc/default/grub and change the CMDLINE to: GRUB_CMDLINE_LINUX_DEFAULT="quiet amdgpu.backlight=0"

• Run update-grub.

• Install firmware-amd-graphics

Reboot and acpi_video0 will go away and instead you'll have amdgpu_bl0 which actually works with Fn keys and by writting values to the /sys/class/backlight/amdgpu_bl0/brightness file. You'll also have 120Hz refresh rate.

I had tried individually the three important components of the solution and they didn't seem to work.

The only other issue that I encountered with this laptop was that the external mic doesn't work with ALSA at all, and the internal mic works but has no volume control. Pulseaudio somehow makes them work, which makes me think that there is a way to make them work with ALSA too, since PA uses ALSA if I am not mistaken. I may try to solve that in the future since I dislike PAs overhead (CPU and latency).

I hope this helps someone.

After upgrading from Beowulf, all apps like synaptic, gparted and timeshift fail to launch from the whisker menu in XFCE. After some research I saw that all of them are probably using pkexec to launch which in turn is supposed to use polkit to show the password dialog for elevating privileges.

Which package is supposed to be the polkit agent for XFCE? Arch says it's xfce-polkit but that doesn't exist in the repos. I seem to have installed pokit-kde-agent-1, mate-polkit and mate-polkit-common but not mate-polkit-bin, and I see that I could install lxpolkit too. But since i'm running XFCE I don't think I should be using these.

Thank you.