HP Chromebook with AMD Stoney Ridge no screen on drm output
- As examples of good bug reports you may review one of these - #1698 (closed), #1536, #1734 (closed)
Hardware description:
- CPU: AMD A4-9120C
- GPU: Advanced Micro Devices, Inc. [AMD/ATI] Stoney [Radeon R2/R3/R4/R5 Graphics] [1002:98e4] (rev eb)
- System Memory: 4GB bga
- Display(s): 1366*768 IPS
- Type of Display Connection: eDP
System information:
- Distro name and Version: Arch Linux
- Kernel version: 5.19.13-arch1-1
- Custom kernel: stock
- AMD official driver version: open source amdgpu
How to reproduce the issue:
Hello there!
I have an HP Chromebook 11A and it doesn't want to boot, doesn't matter what I'm trying to do. It has an AMD A4-9120C on board. Let me explain the boot parameters with all the combinations I was using so far:
- noacpi || acpi=strict
- noapic
- amdiommu=off || noiommu || iommu=soft
- amdgpu.dc=0 || amdgpu.aspm=0 || amdgpu.gartsize=32
It turned out, there is something wrong with the AMDGPU kernel driver, because if I blacklist at the kernel parameters it works. Xubuntu 22.04 boots just fine. Somewhat old Linux-LTS (5.4 || 5.10.90) releases are working with amdgpu.dc=0, but those versions don't have a working wireless device. Let me know, how can I help the debugging. I can boot with the latest version too and an external USB-C network adapter works, so I'm able to get the logs. For me it seems, the first parts of the boot procedure (just loading the vmlinux) is fine, but at the time when the initrd gets loaded and the OS mounts the rootfs, the dummy console driver drops the output to the drm driver and the screen remains black. (that's what I experience across all the amdgpu Radeon I'm using)
Attached files:
Xorg.0.log### Log files (for system lockups / game freezes / crashes)
- Dmesg log (full log)
- Xorg log
- Any other log