** Description changed: Hardware ======== Laptop: MSI Creator A16 AI+ A3HVGG (MS-15FK) CPU: AMD Ryzen AI 9 365 Integrated GPU: AMD Radeon 890M Discrete GPU: NVIDIA RTX 4070 Laptop BIOS: E15FKAMS.316 (2025-09-11) Operating System ================ Linux Mint 22.3 Cinnamon Based on Ubuntu 24.04 LTS NVIDIA Open Driver 595.84 Problem ======= The system boots normally with Ubuntu HWE kernel 6.17.0-41. After upgrading to Ubuntu HWE kernels 7.0.0-27 and 7.0.0-28 the system consistently fails during graphical startup. The boot sequence is: - GRUB menu appears normally. - Ubuntu/Linux Mint splash screen appears. - The display then turns completely black. - No graphical login screen appears. - No visible TTY is available. - The machine does not recover. Booting the previous kernel immediately restores normal operation. Regression ========== Working kernel: 6.17.0-41-generic Broken kernels: 7.0.0-27-generic 7.0.0-28-generic Expected Result =============== The graphical login screen should appear normally. Actual Result ============= The display remains permanently black after the splash screen. Additional Information ====================== Kernel logs show that both the AMD and NVIDIA drivers initialize successfully and LightDM starts, but no graphical session becomes visible. I have attached: - failed kernel journal - full failed boot journal - working kernel journal - hardware information - PCI information - BIOS information - kernel command line At this point I cannot determine whether this is an Ubuntu HWE regression or an upstream Linux kernel regression. _______________ Testing: 1. I attempted to install Ubuntu's vanilla mainline 7.2-rc5 build, but the linux-image package fails in its maintainer scripts with: run-parts: missing operand The system uses Ubuntu 24.04's debianutils 5.17build1. I cleaned up the incomplete installation and did not reboot into the test kernel. Therefore I have not yet been able to determine whether the regression reproduces with upstream 7.2-rc5. 2. Additional observation: while investigating the external HDMI issue, I found that this system uses hybrid AMD/NVIDIA graphics. The internal HDMI port is connected to the NVIDIA RTX 4070. With NVIDIA 610.43.02, the kernel/DRM layer detects the HDMI monitor correctly (HDMI-A-1: connected) and reads its available modes, but Xorg still exposes only the AMD Radeon 890M as a RandR provider, so no image is produced on the HDMI display. I also observed that the NVIDIA GPU can disappear from PCIe during early boot (Link Down, Card not present) and reappear later (Card present, Link Up), after which nvidia-drm initializes successfully. The same PCIe behavior also occurs when using the otherwise working USB display setup, so I cannot currently say whether it is related to the original AMD/kernel regression. I am continuing to investigate this separately and do not yet consider it evidence that the NVIDIA/HDMI issue and the original regression have the same root cause. + + ___________________________________________________________ + + **Update: Successful boot and HDMI output with Ubuntu HWE kernel + 7.0.0-38** + + I retested the issue on the same MSI Creator A16 AI+ A3HVGG (MS-15FK) + laptop, running Linux Mint 22.3 Cinnamon (Ubuntu 24.04 base). + + **Previously affected configuration:** + - Kernel: 7.0.0-28-generic + - Symptom: Black screen after the Linux Mint splash screen, preventing access to the graphical desktop. + + **New working configuration (tested on 2026-10-08):** + - Kernel: 7.0.0-38-generic + - NVIDIA driver: 615.71.09 (open kernel module) + - GPU configuration: AMD Radeon 890M iGPU + NVIDIA GeForce RTX 4070 Laptop GPU + + **Results:** + - The system boots successfully into the Cinnamon desktop. + - The NVIDIA GPU is detected correctly by `nvidia-smi`. + - The Qualcomm WCN785x Wi-Fi adapter is detected and connected. + - The laptop's direct HDMI output, which previously did not provide a usable display, now works. + - The external HDMI monitor can be configured as the primary display. + + This is a significant improvement compared with the previously failing + configuration. + + However, the NVIDIA driver was also updated since the original report, + so I cannot determine whether the improvement is due to kernel changes, + NVIDIA driver changes, or their interaction. + + I will continue testing for stability and retain kernel + 6.17.0-42-generic as a fallback.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2162369 Title: [REGRESSION] Black screen after splash with Ubuntu HWE kernel 7.0.0-27/28 on MSI Creator A16 AI+ (AMD Radeon 890M + NVIDIA RTX 4070 Laptop) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2162369/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
