Two ports are used on box DVI port cable (goes to acer 16:10 monitor) HDMI port cable (goes to dell monitor; one displaying the "Optimum resolution 1280x1024 60Hz" mentioned in initial report, as that is an old 4:3 monitor)
I am NOT using VGA, but I do have different ports being used (DVI & HDMI on box). Do note: The HDMI cable is HDMI connector on computer end, but is DVI on the monitor-end of the cable; both my monitors are using DVI connectors (both monitors too old for HDMI) --- In working out which cable went to each monitor I booted installed system and paused it at grub, i disconnected the HDMI (to see which display went dark), then re-inserted cable and reboot into live media today the lubuntu 20240916 LIVE media displayed on both monitors?? exited rebooted to grub (debian testing/sid owns grub on box) & selected lubuntu oracular (installed system mentioned in report) and system booted up with both displays working (sddm & lubuntu session) ?? Only changes being - different day - both ACER & DELL monitors were turned off & turned back on (hoping it'd tell me which cable was being used; as monitors are connected to two boxes & set to auto) - HDMI cable unplugged from box; delay (checking which monitor went dark) & reconnect cable YET i can't re-create what I did on original bug report??? Again on - dell [optiplex] 780 (c2q-q9400, 8gb, amd/ati cedar radeon hd 5000/6000/7350/8350) I'm tempted to mark this bug as incomplete given today's testing.. but I'll re-test when I can. -- 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/2080949 Title: lubuntu oracular 6.11 kernel; 1 display 'cannot display' & unusable on LIVE Status in linux package in Ubuntu: New Status in linux source package in Oracular: New Bug description: Lubuntu oracular live; first daily using 6.11 kernel on this box which I think is the key difference. On boot (this is second boot of this ISO) I get on one display a message 1: Auto Detect (Digital Input) Cannot Display This Video Model Optimum resolution 1280x1024 60Hz and display was not usable. The other display works... ** Expected results I can use both displays; like I did earlier today OR do if I boot installed systems (Ubuntu noble, oracular [6.8], jammy, Debian testing) ** Actual results I'm limited to one display only; second shows a message & my LXQt.Monitor.Settings won't let me use the display.. ** Other thoughts - booting this ISO in live mode & using `lshw -C video`, and comparing with installed systems I don't see any differences; I can save & append the results if helpful (I didn't save them & was relying on my bad.memory.. so not conclusive) - I have no issues on NOBLE, JAMMY installs; and hadn't noticed any on ORACULAR install either; but installed system was still on 6.8 kernel... I booted the INSTALLED ORACULAR; applied `apt update; apt full- upgrade`, when done rebooted and IT HAD THE SAME ISSUE as this live system This is the first time I've experienced this. This video card is OLD!! and I'm suspicious issue is this real old video car AND newer kernel; not Ubuntu specific issue; but bug report allows tracking into future (subsequent ISOs etc) Users with old hardware like this can still use Ubuntu 24.04 LTS and use the GA kernel stack??.. ProblemType: Bug DistroRelease: Ubuntu 24.10 Package: linux-image-6.11.0-7-generic 6.11.0-7.7 ProcVersionSignature: Ubuntu 6.11.0-7.7-generic 6.11.0-rc7 Uname: Linux 6.11.0-7-generic x86_64 ApportVersion: 2.30.0-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/seq: lubuntu 1857 F.... pipewire /dev/snd/controlC1: lubuntu 1860 F.... wireplumber /dev/snd/controlC0: lubuntu 1860 F.... wireplumber CasperMD5CheckResult: pass CasperVersion: 1.502 CurrentDesktop: LXQt Date: Tue Sep 17 11:15:18 2024 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' LiveMediaBuild: Lubuntu 24.10 "Oracular Oriole" - Daily amd64 (20240916) MachineType: Dell Inc. OptiPlex 780 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz --- quiet splash RelatedPackageVersions: linux-restricted-modules-6.11.0-7-generic N/A linux-backports-modules-6.11.0-7-generic N/A linux-firmware 20240913.gita34e7a5f-0ubuntu2 RfKill: 0: hci0: Bluetooth Soft blocked: yes Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/13/2010 dmi.bios.release: 3.0 dmi.bios.vendor: Dell Inc. dmi.bios.version: A03 dmi.board.name: 0200DY dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA03:bd02/13/2010:br3.0:svnDellInc.:pnOptiPlex780:pvr:rvnDellInc.:rn0200DY:rvrA00:cvnDellInc.:ct3:cvr:sku: dmi.product.name: OptiPlex 780 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2080949/+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
