Run xfce4-screenshooter -fdc 1.

Paste e.g. into a GitHub comment.

Expected behaviour: it pastes a fullscreen image, as it does with xfce4-screenshooter -fd 1, select copy.

Actual behaviour: it doesn't paste anything.

```bash
[jray@jr-dl ~]$ inxi -Fxz
System:
  Host: jr-dl Kernel: 4.19.13-1-MANJARO x86_64 bits: 64 compiler: gcc 
  v: 8.2.1 Desktop: N/A Distro: Manjaro Linux 
Machine:
  Type: Laptop System: Dell product: Latitude E6410 v: 0001 serial: <filter> 
  Mobo: Dell model: 0HNGW4 serial: <filter> UEFI: Dell v: A16 
  date: 12/05/2013 
Battery:
  ID-1: BAT0 charge: 39.6 Wh condition: 39.6/48.8 Wh (81%) 
  model: Samsung SDI DELL PT43699 status: Full 
CPU:
  Topology: Dual Core model: Intel Core i5 M 560 bits: 64 type: MT MCP 
  arch: Nehalem rev: 5 L2 cache: 3072 KiB 
  flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 21290 
  Speed: 1335 MHz min/max: 1199/2667 MHz Core speeds (MHz): 1: 1487 2: 1405 
  3: 1339 4: 1409 
Graphics:
  Device-1: Intel Core Processor Integrated Graphics 
  vendor: Dell Latitude E6410 driver: i915 v: kernel bus ID: 00:02.0 
  Display: x11 server: X.Org 1.20.3 driver: intel unloaded: modesetting 
  resolution: 1440x900~60Hz, 1920x1080~60Hz 
  OpenGL: renderer: Mesa DRI Intel Ironlake Mobile v: 2.1 Mesa 18.3.1 
  direct render: Yes 
Audio:
  Device-1: Intel 5 Series/3400 Series High Definition Audio 
  vendor: Dell Latitude E6410 driver: snd_hda_intel v: kernel 
  bus ID: 00:1b.0 
  Sound Server: ALSA v: k4.19.13-1-MANJARO 
Network:
  Device-1: Intel 82577LM Gigabit Network vendor: Dell Latitude E6410 
  driver: e1000e v: 3.2.6-k port: 7040 bus ID: 00:19.0 
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: <filter> 
  Device-2: Broadcom and subsidiaries BCM43224 802.11a/b/g/n 
  vendor: Dell Wireless 1520 Half-size Mini PCIe Card driver: wl v: kernel 
  port: 7000 bus ID: 02:00.0 
  IF: wlp2s0 state: down mac: <filter> 
Drives:
  Local Storage: total: 1.20 TiB used: 142.38 GiB (11.6%) 
  ID-1: /dev/sda vendor: Seagate model: ST9320423AS size: 298.09 GiB 
  ID-2: /dev/sdb type: USB vendor: Seagate model: Expansion size: 931.51 GiB 
Partition:
  ID-1: / size: 284.06 GiB used: 10.83 GiB (3.8%) fs: ext4 dev: /dev/sda2 
  ID-2: /home size: 622.48 GiB used: 91.96 GiB (14.8%) fs: ext4 
  dev: /dev/sdb1 
  ID-3: swap-1 size: 8.18 GiB used: 587.5 MiB (7.0%) fs: swap dev: /dev/sda3 
Sensors:
  System Temperatures: cpu: 52.0 C mobo: N/A sodimm: 48.0 C 
  Fan Speeds (RPM): cpu: 4311 
Info:
  Processes: 192 Uptime: 7h 33m Memory: 3.72 GiB used: 2.16 GiB (58.1%) 
  Init: systemd Compilers: gcc: 8.2.1 Shell: bash v: 4.4.23 inxi: 3.0.28 
```

I have two screens.