I will provide the report here as I encounter a 504 error while
attempting to send it using apport-collect.
== Package =================================
gnome-remote-desktop 50.0-0ubuntu1
== ProblemType =================================
Bug
== ApportVersion =================================
2.33.1-0ubuntu5
== Architecture =================================
amd64
== CasperMD5CheckResult =================================
unknown
== Dependencies =================================
adduser 3.153ubuntu1
alsa-topology-conf 1.2.5.1-3build1
alsa-ucm-conf 1.2.15.3-1
apt 3.1.16
base-files 14ubuntu5
base-passwd 3.6.8
bubblewrap 0.11.0-2build1
ca-certificates 20250419build1
dbus 1.16.2-2ubuntu4
dbus-bin 1.16.2-2ubuntu4
dbus-daemon 1.16.2-2ubuntu4
dbus-session-bus-common 1.16.2-2ubuntu4
dbus-system-bus-common 1.16.2-2ubuntu4
dbus-user-session 1.16.2-2ubuntu4
dconf-gsettings-backend 0.49.0-4
dconf-service 0.49.0-4
debconf 1.5.92
debconf-i18n 1.5.92
dmsetup 2:1.02.205-2ubuntu3
fontconfig 2.17.1-3ubuntu1
fontconfig-config 2.17.1-3ubuntu1
fonts-dejavu-core 2.37-8build1
fonts-dejavu-mono 2.37-8build1
fuse3 3.18.1-1
gcc-16-base 16-20260315-1ubuntu1
glib-networking 2.80.1-1build2
glib-networking-common 2.80.1-1build2
glib-networking-services 2.80.1-1build2
glycin-loaders 2.1.0+ds-0ubuntu1
glycin-thumbnailers 2.1.0+ds-0ubuntu1
gpgv 2.4.8-4ubuntu3
gsettings-desktop-schemas 50.0-1ubuntu1
init-system-helpers 1.69
krb5-locales 1.22.1-2ubuntu4
libacl1 2.3.2-2
libaom3 3.13.1-2
libapparmor1 5.0.0~beta1-0ubuntu3
libapt-pkg7.0 3.1.16
libasound2-data 1.2.15.3-1ubuntu1
libasound2t64 1.2.15.3-1ubuntu1
libasyncns0 0.8-7
libatomic1 16-20260315-1ubuntu1
libaudit-common 1:4.1.2-1
libaudit1 1:4.1.2-1
libavahi-client3 0.8-18ubuntu1
libavahi-common-data 0.8-18ubuntu1
libavahi-common3 0.8-18ubuntu1
libblkid1 2.41.3-3ubuntu2
libbrotli1 1.2.0-3build1
libbsd0 0.12.2-2build2
libbz2-1.0 1.0.8-6build2
libc-gconv-modules-extra 2.43-2ubuntu1
libc6 2.43-2ubuntu1
libcairo-gobject2 1.18.4-3
libcairo2 1.18.4-3
libcap-ng0 0.8.5-4build5
libcap2 1:2.75-10ubuntu1
libcom-err2 1.47.2-3ubuntu4
libcrypt1 1:4.5.1-1
libcryptsetup12 2:2.8.4-1ubuntu4
libcurl3t64-gnutls 8.18.0-1ubuntu2
libdatrie1 0.2.14-1
libdb5.3t64 5.3.28+dfsg2-10ubuntu1
libdbus-1-3 1.16.2-2ubuntu4
libdconf1 0.49.0-4
libdebconfclient0 0.280ubuntu1
libdevmapper1.02.1 2:1.02.205-2ubuntu3
libdrm-common 2.4.131-1
libdrm2 2.4.131-1
libduktape207 2.7.0+tests-0ubuntu4
libei1 1.5.0-3
libepoxy0 1.5.10-2build1
libexpat1 2.7.4-1
libffi8 3.5.2-3
libfftw3-single3 3.3.10-2fakesync1build3
libflac14 1.5.0+ds-5
libfontconfig1 2.17.1-3ubuntu1
libfreerdp-server3-3 3.22.0+dfsg-1
libfreerdp3-3 3.22.0+dfsg-1
libfreetype6 2.14.2+dfsg-1
libfribidi0 1.0.16-5
libfuse3-4 3.18.1-1
libgcc-s1 16-20260315-1ubuntu1
libgcrypt20 1.12.0-2
libgdk-pixbuf-2.0-0 2.44.5+dfsg-4
libgdk-pixbuf2.0-common 2.44.5+dfsg-4
libglib2.0-0t64 2.87.3-1
libglib2.0-data 2.87.3-1
libglycin-2-0 2.1.0+ds-0ubuntu1
libgmp10 2:6.3.0+dfsg-5ubuntu2
libgnutls30t64 3.8.12-2ubuntu1
libgomp1 16-20260315-1ubuntu1
libgpg-error-l10n 1.58-2
libgpg-error0 1.58-2
libgpm2 1.20.7-12build1
libgraphite2-3 1.3.14-11ubuntu1
libgssapi-krb5-2 1.22.1-2ubuntu4
libharfbuzz0b 12.3.2-2
libheif-plugin-aomenc 1.21.2-3
libheif1 1.21.2-3
libhogweed6t64 3.10.2-1
libhwy1t64 1.3.0-2
libicu78 78.2-2ubuntu1
libidn2-0 2.3.8-4build1
libjson-c5 0.18+ds-3
libjson-glib-1.0-0 1.10.8+ds-2
libjson-glib-1.0-common 1.10.8+ds-2
libjxl0.11 0.11.1-6ubuntu3
libk5crypto3 1.22.1-2ubuntu4
libkeyutils1 1.6.3-6ubuntu3
libkmod2 34.2-2ubuntu2
libkrb5-3 1.22.1-2ubuntu4
libkrb5support0 1.22.1-2ubuntu4
liblastlog2-2 2.41.3-3ubuntu2
liblcms2-2 2.17-1
libldap-common 2.6.10+dfsg-1ubuntu5
libldap2 2.6.10+dfsg-1ubuntu5
liblocale-gettext-perl 1.07-8
liblua5.4-0 5.4.8-1build1
liblz4-1 1.10.0-8
liblzma5 5.8.2-2
libmd0 1.1.0-2build4
libmount1 2.41.3-3ubuntu2
libmp3lame0 3.101~svn6525+dfsg-2
libmpg123-0t64 1.33.3-2
libncursesw6 6.6+20251231-1
libnettle8t64 3.10.2-1
libnghttp2-14 1.68.0-2
libnotify4 0.8.8-1
libnss-systemd 259.5-0ubuntu1
libogg0 1.3.6-2
libopus0 1.6.1-1
libp11-kit0 0.26.2-2
libpam-modules 1.7.0-5ubuntu3
libpam-modules-bin 1.7.0-5ubuntu3
libpam-runtime 1.7.0-5ubuntu3
libpam-systemd 259.5-0ubuntu1
libpam0g 1.7.0-5ubuntu3
libpango-1.0-0 1.57.0-1
libpangocairo-1.0-0 1.57.0-1
libpangoft2-1.0-0 1.57.0-1
libpcre2-8-0 10.46-1build1
libpipewire-0.3-0t64 1.6.2-1ubuntu1
libpipewire-0.3-common 1.6.2-1ubuntu1
libpipewire-0.3-modules 1.6.2-1ubuntu1
libpixman-1-0 0.46.4-1
libpng16-16t64 1.6.55-1
libpolkit-agent-1-0 127-2
libpolkit-gobject-1-0 127-2
libproc2-0 2:4.0.4-9ubuntu1
libproxy1v5 0.5.12-1
libpsl5t64 0.21.2-1.1build2
libpulse0 1:17.0+dfsg1-2ubuntu4
libreadline8t64 8.3-4
libroc0.4 0.4.0+dfsg-5ubuntu3
librsvg2-2 2.61.3+dfsg-3
librsvg2-common 2.61.3+dfsg-3
librtmp1 2.4+20151223.gitfa8646d.1-3
libsasl2-2 2.1.28+dfsg1-9ubuntu3
libsasl2-modules 2.1.28+dfsg1-9ubuntu3
libsasl2-modules-db 2.1.28+dfsg1-9ubuntu3
libseccomp2 2.6.0-2ubuntu5
libsecret-1-0 0.21.7-2build1
libsecret-common 0.21.7-2build1
libselinux1 3.9-4
libsemanage-common 3.9-1build1
libsemanage2 3.9-1build1
libsepol2 3.9-2
libsharpyuv0 1.5.0-0.1build1
libsmartcols1 2.41.3-3ubuntu2
libsnapd-glib-2-1 1.72-0ubuntu3
libsndfile1 1.2.2-4
libsoup-3.0-0 3.6.6-1
libsoup-3.0-common 3.6.6-1
libspa-0.2-modules 1.6.2-1ubuntu1
libspeexdsp1 1.2.1-3build1
libsqlite3-0 3.46.1-9
libssh2-1t64 1.11.1-1build2
libssl3t64 3.5.5-1ubuntu1
libstdc++6 16-20260315-1ubuntu1
libsystemd-shared 259.5-0ubuntu1
libsystemd0 259.5-0ubuntu1
libtasn1-6 4.21.0-2
libtext-charwidth-perl 0.04-11build4
libtext-iconv-perl 1.7-8.1
libtext-wrapi18n-perl 0.06-10
libthai-data 0.1.30-1
libthai0 0.1.30-1
libtinfo6 6.6+20251231-1
libtss2-esys-3.0.2-0t64 4.1.3-6
libtss2-mu-4.0.1-0t64 4.1.3-6
libtss2-rc0t64 4.1.3-6
libtss2-sys1t64 4.1.3-6
libtss2-tcti-cmd0t64 4.1.3-6
libtss2-tcti-device0t64 4.1.3-6
libtss2-tcti-libtpms0t64 4.1.3-6
libtss2-tcti-mssim0t64 4.1.3-6
libtss2-tcti-spi-helper0t64 4.1.3-6
libtss2-tcti-swtpm0t64 4.1.3-6
libtss2-tctildr0t64 4.1.3-6
libudev1 259.5-0ubuntu1
libunistring5 1.3-2build1
libuuid1 2.41.3-3ubuntu2
libuv1t64 1.51.0-2ubuntu1
libva-drm2 2.23.0-1ubuntu1
libva2 2.23.0-1ubuntu1
libvorbis0a 1.3.7-3build2
libvorbisenc2 1.3.7-3build2
libvulkan1 1.4.341.0-1
libwebrtc-audio-processing-1-3 1.3-3build2
libwinpr3-3 3.22.0+dfsg-1
libwireplumber-0.5-0 0.5.13-1ubuntu1
libx11-6 2:1.8.12-1build2
libx11-data 2:1.8.12-1build2
libx11-xcb1 2:1.8.12-1build2
libxau6 1:1.0.11-1build2
libxcb-render0 1.17.0-2ubuntu1
libxcb-shm0 1.17.0-2ubuntu1
libxcb1 1.17.0-2ubuntu1
libxdmcp6 1:1.1.5-2
libxext6 2:1.3.4-1build3
libxkbcommon0 1.13.1-1
libxkbfile1 1:1.1.0-1build5
libxml2-16 2.15.1+dfsg-2ubuntu2
libxrender1 1:0.9.12-1build1
libxxhash0 0.8.3-2build1
libzstd1 1.5.7+dfsg-3
linux-sysctl-defaults 4.15ubuntu4
login 1:4.16.0-2+really2.41.3-3ubuntu2
login.defs 1:4.17.4-2ubuntu3
mount 2.41.3-3ubuntu2
openssl 3.5.5-1ubuntu1
openssl-provider-legacy 3.5.5-1ubuntu1
passwd 1:4.17.4-2ubuntu3
perl-base 5.40.1-6build1
pipewire 1.6.2-1ubuntu1
pipewire-bin 1.6.2-1ubuntu1
pipewire-pulse 1.6.2-1ubuntu1
polkitd 127-2
procps 2:4.0.4-9ubuntu1
psmisc 23.7-2ubuntu2
publicsuffix 20260129.1928-1
readline-common 8.3-4
rtkit 0.14-1
sed 4.9-2build3
sensible-utils 0.0.26build1
sgml-base 1.31+nmu1build1
shared-mime-info 2.4-5build3
systemd 259.5-0ubuntu1
systemd-cryptsetup 259.5-0ubuntu1
systemd-resolved 259.5-0ubuntu1
systemd-sysv 259.5-0ubuntu1
tpm-udev 4.1.3-6
ubuntu-keyring 2023.11.28.1build1
util-linux-extra 2.41.3-3ubuntu2
wireplumber 0.5.13-1ubuntu1
xdg-user-dirs 0.19-1
xkb-data 2.46-2
xml-core 0.19build1
zlib1g 1:1.3.dfsg+really1.3.1-1ubuntu3
== DistroRelease =================================
Ubuntu 26.04
== InstallationDate =================================
Installed on 2024-04-01 (723 days ago)
== InstallationMedia =================================
Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240323)
== PackageArchitecture =================================
amd64
== ProcCpuinfoMinimal =================================
processor : 7
vendor_id : GenuineIntel
cpu family : 6
model : 158
model name : Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
stepping : 9
microcode : 0xca
cpu MHz : 4399.617
cache size : 8192 KB
physical id : 0
siblings : 8
core id : 3
cpu cores : 4
apicid : 7
initial apicid : 7
fpu : yes
fpu_exception : yes
cpuid level : 22
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi >
vmx flags : vnmi preemption_timer invvpid ept_x_only ept_ad ept_1gb
flexpriority tsc_offset vtpr mtf >
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds
swapgs taa itlb_multihit sr>
bogomips : 8400.00
clflush size : 64
cache_alignment : 64
address sizes : 39 bits physical, 48 bits virtual
power management:
== ProcEnviron =================================
LANG=en_US.UTF-8
LC_MEASUREMENT=uk_UA.UTF-8
LC_NUMERIC=uk_UA.UTF-8
LC_TIME=uk_UA.UTF-8
LD_LIBRARY_PATH=<set>
PATH=(custom, no user)
SHELL=/bin/zsh
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
== ProcVersionSignature =================================
Ubuntu 6.18.0-9.9-generic 6.18.5
== Tags =================================
resolute
== Uname =================================
Linux 6.18.0-9-generic x86_64
== UpgradeStatus =================================
Upgraded to resolute on 2025-10-20 (156 days ago)
== UserGroups =================================
adm audio cdrom dip docker lpadmin plugdev render sudo users video
** Tags added: apport-collected resolute
** Description changed:
== Summary ==
GNOME Remote Desktop shows a black screen when connecting via RDP while the
session is actually receiving input (cursor moves on the physical monitor).
== Environment ==
- Ubuntu 26.04 (Resolute Raccoon) development branch
- gnome-remote-desktop 50.0-0ubuntu1
- PipeWire 1.6.0-1ubuntu2
- mutter 50~beta-2ubuntu4
- NVIDIA GeForce RTX 2070 Super, driver 580.126.20
- GNOME session on Wayland
== Error ==
PipeWire fails to allocate DMA-BUF buffers for the screen cast stream:
PipeWire stream error: error alloc buffers: Invalid argument
PipeWire core error: id:3 error alloc buffers: Invalid argument
The physical display uses NVIDIA block-linear DRM modifier
0x300000000606014. PipeWire cannot allocate DMA-BUF buffers with this
NVIDIA tiled modifier for the screen cast consumer (gnome-remote-
desktop).
== Additional details ==
- Setting MUTTER_DEBUG_FORCE_SHADOW_FB=1 on gnome-shell did NOT fix the issue
- RDP connection itself works (authentication, clipboard, input) - only
screen capture fails
- The issue started after a reboot on 2026-03-20, previously worked fine with
same packages
== Workaround ==
None found. Ubuntu 26.04 only ships Wayland GNOME sessions.
== Steps to reproduce ==
1. Have NVIDIA GPU with proprietary driver on Ubuntu 26.04 with GNOME Wayland
2. Enable GNOME Remote Desktop (System Settings > Remote Desktop)
3. Connect via any RDP client
4. Result: black screen, cursor movement visible on physical monitor but no
image in RDP client
+
+ ---
+ ProblemType: Bug
+ ApportVersion: 2.33.1-0ubuntu5
+ Architecture: amd64
+ CasperMD5CheckResult: unknown
+ DistroRelease: Ubuntu 26.04
+ InstallationDate: Installed on 2024-04-01 (723 days ago)
+ InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240323)
+ Package: gnome-remote-desktop 50.0-0ubuntu1
+ PackageArchitecture: amd64
+ ProcVersionSignature: Ubuntu 6.18.0-9.9-generic 6.18.5
+ Tags: resolute
+ Uname: Linux 6.18.0-9-generic x86_64
+ UpgradeStatus: Upgraded to resolute on 2025-10-20 (156 days ago)
+ UserGroups: adm audio cdrom dip docker lpadmin plugdev render sudo users video
+ _MarkForUpload: True
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2145123
Title:
gnome-remote-desktop: Black screen on RDP connection with NVIDIA GPU
(PipeWire DMA-BUF buffer allocation fails)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-remote-desktop/+bug/2145123/+subscriptions
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