Hi Chris, I have just loaded kernel "Linux 5.11.0-34-generic #36~20.04.1-Ubuntu SMP Fri Aug 27 08:06:32 UTC 2021" through the update manager : Dual screen is now working fine. Status of this bug 1939071 can be changed to "fixed".
Thanks for your help Thanks to the team Denis -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1939071 Title: Dual screen not working Status in linux package in Ubuntu: Confirmed Bug description: Ubuntu 5.11.0-25.27~20.04.1-generic 5.11.22 Dual screen issue with kernel family 5.11. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.18 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: denis 2641 F.... pulseaudio /dev/snd/controlC2: denis 2641 F.... pulseaudio /dev/snd/controlC1: denis 2641 F.... pulseaudio /dev/snd/pcmC1D3p: denis 2641 F...m pulseaudio CasperMD5CheckResult: skip DistroRelease: Linux Mint 20.2 InstallationDate: Installed on 2020-07-25 (400 days ago) InstallationMedia: Linux Mint 20 "Ulyana" - Release amd64 20200624 IwConfig: lo no wireless extensions. enp8s0 no wireless extensions. eno1 no wireless extensions. MachineType: Dell Inc. Precision T3600 Package: linux (not installed) ProcEnviron: LANGUAGE=fr_FR TERM=xterm-256color PATH=(custom, no user) LANG=fr_FR.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-27-generic root=UUID=be7e25b0-a451-4097-b177-4855317e502b ro quiet splash ProcVersionSignature: Ubuntu 5.11.0-27.29~20.04.1-generic 5.11.22 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.11.0-27-generic N/A linux-backports-modules-5.11.0-27-generic N/A linux-firmware 1.187.16 RfKill: Tags: uma Uname: Linux 5.11.0-27-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: True dmi.bios.date: 11/07/2013 dmi.bios.release: 4.6 dmi.bios.vendor: Dell Inc. dmi.bios.version: E12 dmi.board.name: 08HPGT dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 7 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrE12:bd11/07/2013:br4.6:svnDellInc.:pnPrecisionT3600:pvr01:rvnDellInc.:rn08HPGT:rvrA01:cvnDellInc.:ct7:cvr: dmi.product.name: Precision T3600 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1939071/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
