i cant able to use dual screen in i7 13th gen of hp pro tower

[vishal kumar]

whenever I plugged dual screen in ubuntu it will consider DP port primary and whenever i remove the port it will show blank screen. I can't able to use dual screen.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.15.0-67.74~20.04.1-generic 5.15.85
Uname: Linux 5.15.0-67-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.25
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Feb 9 10:07:56 2024
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: No
GraphicsCard:
 Intel Corporation Device [8086:a780] (rev 04) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:8ac7]
InstallationDate: Installed on 2024-02-08 (0 days ago)
InstallationMedia: Ubuntu 20.04.6 LTS "Focal Fossa" - Release amd64 (20230316)
MachineType: HP HP Pro Tower 400 G9 PCI Desktop PC
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-67-generic root=UUID=c5c60b84-e143-44b9-adac-06e7cfc11a40 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/25/2023
dmi.bios.release: 11.0
dmi.bios.vendor: HP
dmi.bios.version: U03 Ver. 02.11.00
dmi.board.name: 8AC7
dmi.board.vendor: HP
dmi.board.version: KBC Version 12.03.05
dmi.chassis.type: 3
dmi.chassis.vendor: HP
dmi.ec.firmware.release: 18.3
dmi.modalias: dmi:bvnHP:bvrU03Ver.02.11.00:bd07/25/2023:br11.0:efr18.3:svnHP:pnHPProTower400G9PCIDesktopPC:pvr:rvnHP:rn8AC7:rvrKBCVersion12.03.05:cvnHP:ct3:cvr:sku7E953AV:
dmi.product.family: 103C_53307F HP ProDesk
dmi.product.name: HP Pro Tower 400 G9 PCI Desktop PC
dmi.product.sku: 7E953AV
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.107-8ubuntu1~20.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.6-0ubuntu0.1~20.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Daniel van Vugt (vanvugt)]

Your "13th Gen Intel(R) Core(TM) i7-13700" is too new for such an old Linux kernel to support the graphics outputs correctly. Please install a newer Ubuntu release such as 22.04.3:

https://ubuntu.com/download/desktop