Graphic glitches when resizing Ptyxis

[bellegarde-c]

xrdp version

0.10.1

Detailed xrdp version, build options

xrdp 0.10.1
  A Remote Desktop Protocol Server.
  Copyright (C) 2004-2024 Jay Sorg, Neutrino Labs, and all contributors.
  See https://github.com/neutrinolabs/xrdp for more information.

  Configure options:
      --build=x86_64-redhat-linux-gnu
      --host=x86_64-redhat-linux-gnu
      --program-prefix=
      --disable-dependency-tracking
      --prefix=/usr
      --exec-prefix=/usr
      --bindir=/usr/bin
      --sbindir=/usr/sbin
      --sysconfdir=/etc
      --datadir=/usr/share
      --includedir=/usr/include
      --libdir=/usr/lib64
      --libexecdir=/usr/libexec
      --localstatedir=/var
      --runstatedir=/run
      --sharedstatedir=/var/lib
      --mandir=/usr/share/man
      --infodir=/usr/share/info
      --enable-fuse
      --enable-pixman
      --enable-painter
      --enable-vsock
      --enable-ipv6
      --with-socketdir=/run/xrdp
      --with-imlib2
      build_alias=x86_64-redhat-linux-gnu
      host_alias=x86_64-redhat-linux-gnu
      CC=gcc
      CFLAGS=-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 
      LDFLAGS=-Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes 
      CXX=g++
      CXXFLAGS=-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer 
      LT_SYS_LIBRARY_PATH=/usr/lib64:
      PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig

  Compiled with OpenSSL 3.2.2 4 Jun 2024

Operating system & version

Silverblue 40

Installation method

dnf / apt / zypper / pkg / etc

Which backend do you use?

xorgxrdp

What desktop environment do you use?

No response

Environment xrdp running on

physical machine (intel card)

What's your client?

Remmina/Windows RDP client

Area(s) with issue?

Graphic glitches

Steps to reproduce

When launching Ptyxis in a GNOME Shell session (Silverblue41) and resizing terminal, there are many graphic glitches.

In this screenshot, there is only one window. (and we can see three headerbar)

✔️ Expected Behavior

No glitch :)

❌ Actual Behavior

Glitches

Anything else?

No response

[matt335672]

Could be a problem with hardware acceleration.

You say you're using xorgxrdp. That's not the default for Fedora-based systems. Does the same thing happen with the Xvnc backend?

[bellegarde-c]

Yes, works with xvnc

[matt335672]

Can you edit /etc/X11/xrdp/xorg.conf and disable glamor by replacing this line:-

   Option "DRMDevice" "/dev/dri/renderD128"

with:-

   Option "DRMDevice" " "

That will prevent xorgxrdp using Glamor, and let us narrow it down a bit.

[bellegarde-c]

Same issue with Option "DRMDevice" " "

Capture.video.du.2024-11-12.10-20-25.webm

[matt335672]

Thanks. That rules out hardware acceleration within xrdp itself.

Can you post the contents of /var/log/xrdp.log after connecting? That should give us the connection parameters, and I can try to reproduce this here.

[matt335672]

Also, please post ~/.xorgxrdp.$DISPLAY.log so we can see what the X server is loading.

[bellegarde-c]

xorgxrdp.10.log
xrdp.log

[matt335672]

I can't find any connection info in xrdp.log, but that's fine. Other than that, all looks OK from an xrdp perspective. However, I'm not seeing this on a Silverblue41 VM here.

• Are you able to post a Windows mstsc.exe ini file so I can try to reproduce this exactly?
• What do you get for these commands as the affected user:-

  id
  ls -l /dev/dri