/usr/bin/prlcc causes dead/unclickable areas on screen edge after snapping window

Discussion in 'Linux Virtual Machine' started by IoannisK3, Jun 3, 2025.

  1. IoannisK3

    IoannisK3 Bit poster

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    As the title says, I was confused for a very long time because in Linux (X server only-not wayland) whenever I snapped a window on the screen edge inside the vm, it caused this area to become unclickable. E.g. even if I moved the window, I was not able to click anything on that area!. xprop showed this when inspecting the unclickable area which doesn't seem normal:

    └─$ xprop
    XdndAware(ATOM) = undefined atom # 0xa240e6ff
    XdndTypeList(ATOM) = text/uri-list, TARGETS, MULTIPLE
    _MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x2, 0x0, 0x0, 0x0, 0x0

    After digging around a little bit, I remove the /etc/xdg/autostart/prlcc.desktop file. This prevents /usr/bin/prlcc from auto-start. Issue got resolved, although now I cannot copy & paste between the VM and MacOS. If I want to copy paste something I have to manually start prlcc and then force kill it again.

    I am leaving this here for anyone else who might be having the same issue. Parallels team, PLEASE FIX THIS!
     
    EnricoD6 likes this.
  2. Manawyrm

    Manawyrm Bit poster

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    Can confirm.
    Seeing this same issue with Parallels Desktop 20 Version 20.3.1 (55959) and an ArchLinux Xorg guest.
    Huge thanks to @IoannisK3 to identifying the issue and providing that workaround. It it making my system unusable.
     
  3. Manawyrm

    Manawyrm Bit poster

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    Hm, there was a 20.3.2 (55975) release right now -- the problem hasn't shown itself (yet). Maybe it was fixed?
     
  4. Manawyrm

    Manawyrm Bit poster

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    Ah, nope, it happened again.
    I'm opening a support request.
     
  5. ReverserB

    ReverserB

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    I have the exact same problem! When fix?
     
  6. EnricoD6

    EnricoD6 Bit poster

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    Same here: Parallels 20.4.0-55980 (just bought to discover this!) running Ubuntu 25.04 and xfce4.
     
  7. RickardB1

    RickardB1 Bit poster

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    Same problem here, Version 20.4.0 (55980) also just bought. :(
     
  8. uksz

    uksz Bit poster

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    does anyone from parallels look into that? this is super frustrating bug present for SO LONG...
     
  9. DeviousBlue

    DeviousBlue chaos enthusiast Bit poster

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    This has been driving me nuts for months.

    It turns out prlcc is not directly responsible for this -- prlcc actually kicks off 3 other processes: prlshprof (shared profile tool), prlcp (copy/paste service), and prldnd (drag & drop service). It's actually prldnd that's causing the problem!

    If you run killall prldnd it's fixed, and you get to keep copy/paste. :3
     
    EnricoD6 and IoannisK3 like this.
  10. EnricoD6

    EnricoD6 Bit poster

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    As a customer with a paid license: I'm begging you, Parallels guys, to please fix this before hitting me with other upselling emails (and before I'll move back to Virtualbox out of frustration...)
     
  11. MichaelR109

    MichaelR109 Bit poster

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    As another paying customer I totally agree. This has to be fixed as this is hugely annoying and I wasted a lot of time figuring out that prldnd was the problem.
     

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