amdgpu: black screen 70% of time on boot

amdgpu: black screen 70% of time on boot

[Steven J Abner]

 Having issue with firmware. 2400g, no OS or LFS build. Linux version 
6.13.4, no initrd.
 Will boot 100% to linux console if I don't use firmware loading, and 
average about 30% of the time with firmware. Clarify: 100% I can use 
linux console, just with firmware I can only see it displayed 30% of 
the boot ups, includes boot output and login prompt.
 Not sure of steps needed to remedy. Dmseg(s) from a non-LFS match in 
the drm, amdgpu outputs:
[drm] initializing kernel modesetting (RAVEN 0x1002:0x15DD 
0x1002:0x15DD 0xC6).
amdgpu: ATOM BIOS: 113-RAVEN-113
amdgpu 0000:0e:00.0: [drm] fb0: amdgpudrmfb frame buffer device
 and dmesg(s) between blanked and displayed of LFS are identical.
Guidance please :)
Steve

Re: amdgpu: black screen 70% of time on boot

[Steven J Abner]

On Wed, Apr 30 2025 at 03:22:13 PM +0000, Steven J Abner 
<pheonix.sja@att.net> wrote:
>  Having issue with firmware.

To hopefully help, I slowly added firmware as kernel called for. After 
adding 'raven_mec.bin' the kernel didn't boot. After adding 
'raven_mec2.bin' it booted but this time stated in dmesg amdgpu was 
running but no display output with console abilities. Added the 
remaining 2 kicker_rlc and dmcu.
 In preliminary test max was 4 blackouts and now closer to 50% overall. 
Sure beats 12 max :) Also forgot to mention firmware add ins were at 
make -j2 instead of kernels max of -j4.
 Not part of list so could you please CC me on possible responses.
Steve