** Package changed: ubuntu => gnome-remote-desktop (Ubuntu)

** Tags added: noble

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https://bugs.launchpad.net/bugs/2077288

Title:
  Remote Desktop fails on Ubuntu 24 with HDMI dummy plug

Status in gnome-remote-desktop package in Ubuntu:
  Confirmed

Bug description:
  On Ubuntu 23.10 I was able to using GNOME Remote Desktop with an HDMI
  dummy plug to remote desktop into my Intel NUC. However on Ubuntu
  24.04, remote desktop with HDMI dummy plug is failing (though it does
  work when the NUC is connected to a real monitor via HDMI).

  I have tried both nvidia 535 and 470 drivers and the same result

  These are some excerpts from /var/log/syslog for the real monitor
  connected working case on Ubuntu 24.04:

  2024-08-19T11:02:39.034352+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(--) NVIDIA(GPU-0): Lenovo Group Limited P24q-10 (DFP-1): connected
  2024-08-19T11:02:39.034366+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(--) NVIDIA(GPU-0): Lenovo Group Limited P24q-10 (DFP-1): Internal TMDS
  2024-08-19T11:02:39.034372+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(--) NVIDIA(GPU-0): Lenovo Group Limited P24q-10 (DFP-1): 600.0 MHz maximum 
pixel clock
  ...
  2024-08-19T11:02:39.128496+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(II) NVIDIA(0): Setting mode "NULL"
  2024-08-19T11:02:39.159536+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(II) NVIDIA(0): Setting mode "HDMI-0: 1920x1200 @1920x1200 +0+0 
{ViewPortIn=1920x1200, ViewPortOut=1920x1200+0+0}"
  ...
  2024-08-19T11:02:39.582199+10:00 IcedVovo gnome-remote-de[2943]: [RDP] 
Initialization of CUDA was successful
  2024-08-19T11:02:39.582238+10:00 IcedVovo gnome-remote-de[2943]: RDP server 
started

  
  Here are some excerpts of syslog in the HDMI dummy plug not working case on 
Ubuntu 24.04:

  2024-08-19T11:04:46.389276+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(--) NVIDIA(GPU-0): AOC 28E850 (DFP-1): connected
  2024-08-19T11:04:46.389372+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(--) NVIDIA(GPU-0): AOC 28E850 (DFP-1): Internal TMDS
  2024-08-19T11:04:46.389395+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(--) NVIDIA(GPU-0): AOC 28E850 (DFP-1): 600.0 MHz maximum pixel clock
  ...
  2024-08-19T11:04:46.491547+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(EE) modeset(G1): failed to set mode: Input/output error
  ...
  2024-08-19T11:04:46.493259+10:00 IcedVovo /usr/libexec/gdm-x-session[2720]: 
(II) NVIDIA(0): Setting mode "HDMI-0: nvidia-auto-select @1920x1080 +2560+0 
{ViewPortIn=1920x1080, ViewPortOut=1920x1080+0+0}"
  2024-08-19T11:04:46.608551+10:00 IcedVovo gnome-shell[3018]: Window manager 
warning: Impossible to resize screen at size 4480x1080, error id 8: BadMatch 
(invalid parameter attributes)
  2024-08-19T11:04:46.619388+10:00 IcedVovo gnome-shell[3018]: Window manager 
warning: Impossible to resize screen at size 4480x1080, error id 8: BadMatch 
(invalid parameter attributes)
  ...
  2024-08-19T11:04:46.713396+10:00 IcedVovo xdg-desktop-por[3593]: Monitor 
'Unknown Display' has no configuration which is-current!
  2024-08-19T11:04:46.714041+10:00 IcedVovo xdg-desktop-por[3593]: Monitor 
'Unknown Display' has no configuration which is-current!
  2024-08-19T11:04:46.736693+10:00 IcedVovo gnome-shell[3018]: Can't update 
stage views actor unnamed [MetaWindowGroup] is on because it needs an 
allocation.
  2024-08-19T11:04:46.736762+10:00 IcedVovo gnome-shell[3018]: Can't update 
stage views actor unnamed [MetaWindowActorX11] is on because it needs an 
allocation.
  2024-08-19T11:04:46.736798+10:00 IcedVovo gnome-shell[3018]: Can't update 
stage views actor unnamed [MetaSurfaceActorX11] is on because it needs an 
allocation.
  2024-08-19T11:04:46.789402+10:00 IcedVovo gnome-shell[3018]: Can't update 
stage views actor unnamed [MetaWindowActorX11] is on because it needs an 
allocation.
  2024-08-19T11:04:46.789502+10:00 IcedVovo gnome-shell[3018]: Can't update 
stage views actor unnamed [MetaSurfaceActorX11] is on because it needs an 
allocation.
  ...
  2024-08-19T11:05:02.807467+10:00 IcedVovo gnome-remote-de[2943]: 
[RDP.CLIPRDR] Relieving CLIPRDR filename restriction
  2024-08-19T11:05:02.809732+10:00 IcedVovo gnome-remote-de[2943]: Failed to 
record monitor: GDBus.Error:org.freedesktop.DBus.Error.Failed: Unknown monitor
  2024-08-19T11:05:02.809761+10:00 IcedVovo gnome-remote-desktop-daemon[2943]: 
[11:05:02:442] [2943:00000b7f] [ERROR][com.freerdp.core.peer] - 
[rdp_set_error_info]: ERRINFO_RPC_INITIATED_DISCONNECT [0x00010001]
  2024-08-19T11:05:02.814326+10:00 IcedVovo systemd[1]: 
run-user-1000-gnome\x2dremote\x2ddesktop-cliprdr\x2dDrupnO.mount: Deactivated 
successfully.
  2024-08-19T11:05:11.022321+10:00 IcedVovo tracker-miner-fs-3[5010]: 
(tracker-extract-3:5010): GLib-GIO-WARNING **: 11:05:11.022: Error creating IO 
channel for /proc/self/mountinfo: Invalid argument (g-io-error-quark, 13)

  
  Further details

  $ lsb_release -rd
  No LSB modules are available.
  Description:    Ubuntu 24.04 LTS
  Release:        24.04

  
  $ apt-cache policy gnome-shell
  gnome-shell:
    Installed: 46.0-0ubuntu6~24.04.3
    Candidate: 46.0-0ubuntu6~24.04.3
    Version table:
   *** 46.0-0ubuntu6~24.04.3 500
          500 http://au.archive.ubuntu.com/ubuntu noble-updates/main amd64 
Packages
          500 http://security.ubuntu.com/ubuntu noble-security/main amd64 
Packages
          100 /var/lib/dpkg/status
       46.0-0ubuntu5 500
          500 http://au.archive.ubuntu.com/ubuntu noble/main amd64 Packages

  
  $ apt-cache policy xdg-desktop-portal
  xdg-desktop-portal:
    Installed: 1.18.4-1ubuntu2
    Candidate: 1.18.4-1ubuntu2
    Version table:
   *** 1.18.4-1ubuntu2 500
          500 http://au.archive.ubuntu.com/ubuntu noble-updates/main amd64 
Packages
          100 /var/lib/dpkg/status
       1.18.3-1ubuntu1 500
          500 http://au.archive.ubuntu.com/ubuntu noble/main amd64 Packages

  
  $ apt-cache policy gdm3 
  gdm3:
    Installed: 46.0-2ubuntu1
    Candidate: 46.0-2ubuntu1
    Version table:
   *** 46.0-2ubuntu1 500
          500 http://au.archive.ubuntu.com/ubuntu noble/main amd64 Packages
          100 /var/lib/dpkg/status

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