[BUG] Switched to Nvidia mode then the host is unable to boot normally

[tensingnightco]

Describe the bug A clear and concise description of what the bug is. I was trying to switch to Nvidia mode. Before trying to switch, I was at Hybrid mode because EnvyControl said couldn't detect NVIDIA driver in Integrated mode. Things still normal until I rebooted, then booted it up again. At that point, the screen is stuck with black screen and blinking cursor. I'm incapable of booting normally right now, so I have to use a snapshot to work with my host and submit this issue. Do you have any help on this, please ? To Reproduce Steps to reproduce the behavior:

1. Run sudo envycontrol -s nvidia
2. See error Expected behavior A clear and concise description of what you expected to happen. I expected my host to boot normally Screenshots If applicable, add screenshots to help explain your problem.

System Information:

• Model: Acer Aspire A715-41G (V1.03)
• Distro: EndeavourOS Cassini Nova
• Kernel: 6.4.1-zen2-1-zen
• DE/WM and Display Manager (if applicable): KDE Plasma 5.27.6 with Wayland
• EnvyControl version: 3.2.0
• Nvidia driver version: 535.54.03-1
• lspci output: 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Root Complex 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 IOMMU 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0] 00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0] 00:01.6 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0] 00:01.7 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP Bridge [6:0] 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus A 00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Internal PCIe GPP Bridge 0 to Bus B 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61) 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51) 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 0 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 1 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 2 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 3 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 4 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 5 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 6 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 Device 24: Function 7 01:00.0 3D controller: NVIDIA Corporation TU117M [GeForce GTX 1650 Ti Mobile] (rev a1) 02:00.0 Non-Volatile memory controller: SK hynix BC501 NVMe Solid State Drive 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15) 04:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a) 05:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Picasso/Raven 2 [Radeon Vega Series / Radeon Vega Mobile Series] (rev c2) 05:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP Audio Controller 05:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor 05:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1 05:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Raven USB 3.1 05:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor 05:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller 06:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61) (This is actually the output from the snapshot btw)

[tensingnightco]

Okay I just worked around a little bit and realized that my laptop actually still works. But there's a problem. Instead of showing a login screen as usual, it does display a black screen if I was currently switching to NVIDIA mode. This might stop if I ever switched back to Integrated or Hybrid mode maybe. But I want to know why this bug occurs

[mosulache]

I had the same problem booting into kde plasma with wayland. I chose to use X11 and the it worked. google searching will offer you solution: some params to be added in grub config files will make the kernel play nicer people say. Seems like it's a kernel versus nvidia matter, not a bug to be reported here .

[tensingnightco]

Do you know which params in question should I add since I don't know much about this problem ?

[mosulache]

i think thie is it: https://forums.debian.net/viewtopic.php?p=767158#p767158 see the last posts. I assume it's a solution, had never tried myself since the X11 version worked fine for me