# \[bug\] generate wallpaper dual monitor
**URL:** https://forum.maboxlinux.org/t/bug-generate-wallpaper-dual-monitor/2490
**Category:** Bug reports
**Created:** [March 21, 2026, 12:30pm UTC](https://forum.maboxlinux.org/t/bug-generate-wallpaper-dual-monitor/2490 "2026-03-21T12:30:08Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@muzqs](https://forum.maboxlinux.org/u/muzqs)
#### Post date: [March 21, 2026, 12:30pm UTC](https://forum.maboxlinux.org/t/bug-generate-wallpaper-dual-monitor/2490/1 "2026-03-21T12:30:08Z")
Hi @napcok
**Sinse yesterday or more day’s** , I cant remember, the wallpaper generation was not working for me.
I fixed it now for myself doing the following…
**Two fixes applied to `mb-canvas`:**
**1. Multi-monitor crash** — `$size` captured all connected monitor resolutions, causing magick to attempt an impossibly large canvas allocation and fill `/tmp`.
Original error:
```auto
mb-canvas -Ras
WARNING: The convert command is deprecated in IMv7, use "magick" instead of "convert" or "magick convert"
convert: unable to write pixel cache '/tmp/magick-pvlUUZZl6GDR1kX-K_5Jp9JeiP27gHpu': No space left on device @ error/cache.c/WritePixelCachePixels/5984.
convert: Memory allocation error: Unspecified: Allocating 221213491215 bytes failed (6.0) `/home/vogel/Pictures/imagick/imagick_2026-03-21_01-04-28.avif' @ error/heic.c/IsHEIFSuccess/202.
/usr/bin/mb-canvas: line 70: 2560x1440: value too great for base (error token is "2560x1440")
```
```bash
# Before
size=$(xrandr | grep connected | grep -o '[0-9]*x[0-9]*')
# After
size=$(xrandr | grep ' primary' | grep -o '[0-9]*x[0-9]*' | head -1)
```
**2. IMv7 deprecation warnings** — replaced all `convert` calls with `magick`.
---
### Author:  [@napcok](https://forum.maboxlinux.org/u/napcok)
#### Post date: [March 21, 2026, 1:33pm UTC](https://forum.maboxlinux.org/t/bug-generate-wallpaper-dual-monitor/2490/2 "2026-03-21T13:33:45Z")
Updated `mabox-tools` already pushed to repo.
Tested on my side… I still have one monitor setup.
Thanks @muzqs 🙂