i hope you can see the image, i cant on fhe phone. i tried to install arch with archinstall script and tried latest zen kernel but result is same. it stuck [drm] VCE enabled in VM mode. i tried to add grub: amdgpu.dc=0 amdgpu.si_support=1 radeon.si_support=0 amdgpu.dpm=1 amdgpu.vm_fragment_size=9 amd_iommu=off but didn't work
On Thu, Jun 12, 2025, 14:29 Durmuş <[email protected]> wrote: > > i added debug option and this is where to stuck > > On Fri, May 30, 2025, 23:29 Alex Deucher <[email protected]> wrote: > >> On Thu, May 22, 2025 at 11:10 AM Durmuş <[email protected]> wrote: >> > >> > Hello, >> > >> > I'm experiencing a critical issue on my system with an AMD RX 470 GPU. >> > When booting with recent kernel versions (6.7.x or newer), the system >> > fails to boot properly unless I explicitly disable Dynamic Power >> > Management (DPM) via the `amdgpu.dpm=0` kernel parameter. >> > >> > When DPM is enabled (`amdgpu.dpm=1` or omitted, since it's the >> > default), the system either freezes during early boot or fails to >> > initialize the display. However, using the LTS kernel (6.6.x), >> > everything works as expected with DPM enabled. >> >> Are you still having an issue with newer kernels? E.g., 6.14 or 6.15? >> I haven't seen any problems with polaris boards here. If 6.6.x >> works, but 6.7 does not, can you bisect? >> >> Alex >> >> > >> > This seems to be a regression introduced in kernel 6.7 or later, and >> > it specifically affects older GCN4 (Polaris) GPUs like the RX 470. >> > Disabling DPM allows the system to boot, but significantly reduces GPU >> > performance. >> > >> > Things I’ve tried: >> > - Confirmed that the latest `linux-firmware` is installed. >> > - Verified correct firmware files exist under `/lib/firmware/amdgpu/`. >> > - Tested multiple kernels (mainline and LTS). >> > - Using Mesa with ACO (Radeon open driver stack). >> > - System boots fine with LTS kernel (6.6.x) + DPM enabled. >> > >> > System info: >> > - GPU: AMD RX 470 (GCN 4 / Polaris) >> > - Distro: Arch Linux >> > - Kernel (working): linux-lts 6.6.x >> > - Kernel (broken): 6.7.x and newer (currently tested on 6.14.6) >> > >> > Thanks in advance, >> > Durmus Ozaltay >> >
