[Feature]: Support specifying multiple displays in Wayland

[abkein]

What happened?

Here is the picture:

As you can see, pdf document is present on both screens, but the conky is not. If I increase gap_x further (bigger than monitor's x-resolution), conky becomes fully invisible.
The same if open conky on the second monitor and set gap_x negative:

The main problem is that conky opens on the monitor the mouse was on, so usage of relative positioning becomes hard or impossible, if you want the conky to be at constant position.

Platform:

Hyprland 0.45.2 built from branch  at commit 12f9a0d0b93f691d4d9923716557154d74777b0a  ([gha] Nix: update inputs).
Date: Tue Nov 19 21:47:18 2024
Tag: v0.45.2, commits: 5451
built against aquamarine 0.5.0

OS: Arch Linux x86_64
Kernel: Linux 6.12.1-arch1-1
Display (Mi monitor): 3440x1440 @ 60 Hz in 35" [External]
Display (SA240Y): 1920x1080 @ 75 Hz in 24" [External]
Display (TMX2005): 3200x2000 @ 120 Hz (as 2003x1252) in 16" [Built-in]

Version

Latest commit 28a39cb built with these flags

Which OS/distro are you seeing the problem on?

Arch Linux

Conky config

se,
    show_graph_scale = false,
    stippled_borders = 0,
    update_interval = 1.0,
    uppercase = false,
    use_spacer = 'none',
--    use_xft = true,
}

-- Variables: https://conky.cc/variables
conky.text = [[
${color grey}Info:$color ${scroll 32 Conky $conky_version - $sysname $nodename $kernel $machine}
$hr
${color grey}Uptime:$color $uptime
${color grey}Frequency (in MHz):$color $freq
${color grey}Frequency (in GHz):$color $freq_g
${color grey}RAM Usage:$color $mem/$memmax - $memperc% ${membar 4}
${color grey}Swap Usage:$color $swap/$swapmax - $swapperc% ${swapbar 4}
${color grey}CPU Usage:$color $cpu% ${cpubar 4}
${color grey}Processes:$color $processes  ${color grey}Running:$color $running_processes
$hr
${color grey}File systems:
 / $color${fs_used /}/${fs_size /} ${fs_bar 6 /}
${color grey}Networking:
Up:$color ${upspeed} ${color grey} - Down:$color ${downspeed}
$hr
${color grey}Name              PID     CPU%   MEM%
${color lightgrey} ${top name 1} ${top pid 1} ${top cpu 1} ${top mem 1}
${color lightgrey} ${top name 2} ${top pid 2} ${top cpu 2} ${top mem 2}
${color lightgrey} ${top name 3} ${top pid 3} ${top cpu 3} ${top mem 3}
${color lightgrey} ${top name 4} ${top pid 4} ${top cpu 4} ${top mem 4}
]]

Stack trace

No response

Relevant log output

No response

[Caellian]

I'm splitting this issue into two smaller ones.

• Firstly, basic display support needs to be added. This is described in [Feature]: Handle display option in Wayland #2111.
• Secondly, support for creating multiple surfaces is required to allow drawing conky on multiple screens.

This issue now tracks:

• Add support for creating multiple wayland surfaces per single conky instance.
• Enable display to specify a semicolon separated list of displays.
• Allow display = "*" which targets all displays.

Conky currently assumes a single output/monitor is available and:

• uses dimension information of last reported/connected monitor,
• requires placement on last focused/used monitor.