Public bug reported: [Reproduce Steps] 1. Connect the system via 540 graphics card +CML CUP. 2. Clean install Ubuntu 20.04 2. A black screen appears on the system.
[Result] Expected Result OS can be installed normally. [Actual Result] Clean install Ubuntu 20.04. After "Copying installation logs", the system reboots and the screen goes black. The Ubuntu system does not install successfully. The reproduce steps : Insert the U disk -> power on SUT -> error log will appear -> select the hard disk to install OS -> processing of copy files -> auto restart -> Dell logo show up -> error log appears again -> VP on CML +X59 (black screen) / VNP on RKL +X59. Others info: VNP on RKL+UMA VNP on CML+singel 550 VNP on CML +single RX640 VNP on RKL +single 540 VP on CML+UMA VP on CML+singel 540 [Additional Information] 1. Test Vault ID: adhoc 2. Checkbox test case ID : NA 3. BIOS Version: 0.5.28 4. Image/Manifest: Ubuntu 20.04.1 LTS (fossa-cubone x59) 5. SKU: OptiPlex 5090 6. CPU: CML ES QSRK 7. GPU: singel 540 8. PIMS-27206 / Launchpad:#1906140 Failure rate: 3/3 times ** Affects: gnome-shell-extension-ubuntu-dock (Ubuntu) Importance: Undecided Status: New ** Tags: checkbox-test fossa-cubone-rkl fossa-seadra-rkl odm-bug white-whale ** Tags added: checkbox-test fossa-cubone-rkl fossa-seadra-rkl odm-bug white-whale -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908373 Title: [Seal MT][Caribou]20.04 X59,Black screen appears when installing Ubuntu on AMD 540 graphics card and CML CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell-extension-ubuntu-dock/+bug/1908373/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs