Re: Kernels >= 6.3 disable video output

2025-05-16 Thread Steven J Abner
On Fri, May 16 2025 at 03:38:04 PM +, Steven J Abner wrote: A boot param like 'amd_prefcore=disable' could work But kinda a band aid. What if you just download a Mainline kernel (as I did to verify not a build/configure issue). Writing bug report to OS provider could take a

Re: Kernels >= 6.3 disable video output

2025-05-16 Thread Steven J Abner
On Fri, May 16 2025 at 03:02:47 PM +, Michel Dänzer wrote: FWIW, with GNOME the "max bpc" property value can be set Issue is pre-DE, gnome or Xorg. A boot param like 'amd_prefcore=disable' could work. Issue then becomes putting into dmesg so can figure its needed. Blacked out console har

Re: Kernels >= 6.3 disable video output

2025-05-15 Thread Steven J Abner
On Thu, May 15 2025 at 05:59:55 PM +, Harry Wentland wrote: Are you able to share the specific TV model? From TV itself: Sansui S55VAUG. From System info within tv menu: Settings: Device Name: GoogleTV8931 Model: Apollo Premium 4KTV from cat /sys/class/drm/card0/card0-HDMI-A-1/edid: bina

Re: Kernels >= 6.3 disable video output

2025-05-15 Thread Steven J Abner
On Mon, May 12 2025 at 08:10:40 PM +, Alex Deucher wrote: See: https://docs.kernel.org/admin-guide/bug-bisect.html ... identify the exact commit which broke caused your issue. One heck of a journey! But tested the solution on the first broken kernel 6.3. Too chicken to force revert attemp

Re: Kernels >= 6.3 disable video output

2025-05-12 Thread Steven J Abner
On Fri, May 9 2025 at 03:01:13 PM +, Steven J Abner wrote: On Fri, May 9 2025 at 02:05:16 PM +, Alex Deucher wrote: bisect between 6.2.16 and 6.2.17 to identify the commit which broke Are you asking for a 'diff' output of drm and amdgpu directories between 6.2.16 (last

Re: Kernels >= 6.3 disable video output

2025-05-10 Thread Steven J Abner
On Fri, May 9 2025 at 02:05:16 PM +, Alex Deucher wrote: bisect between 6.2.16 and 6.2.17 to identify the commit which broke Are you asking for a 'diff' output of drm and amdgpu directories between 6.2.16 (last of the 6.2 series) and 6.3 (start of the 6.3 series)? I can and will if you w

Re: Kernels >= 6.3 disable video output

2025-05-10 Thread Steven J Abner
On Fri, May 9 2025 at 01:11:17 PM +, Alex Deucher wrote: What display(s) are you using and how are they connected? Can you bisect? Not sure the question, but it's a tv thru HDMI. Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384 DisplayPort-0 disconnected primary (n

Re: Kernels >= 6.3 disable video output

2025-05-10 Thread Steven J Abner
On Fri, May 9 2025 at 02:05:16 PM +, Alex Deucher wrote: Can you narrow down where it broke? Have built kernels from 5.15 thru 6.2.16 (last of the 6.2 series), have no issues, ran Xorg server as test. Kernels 6.13.4 down to 6.3 builds, more builds focused in the 6.3 series, have the 70%

Kernels >= 6.3 disable video output

2025-05-09 Thread Steven J Abner
AMD 2400g, Zen1, 'Raven' firmware, igpu, no card. Code that was added to 6.2.16 to create 6.3 and up, to last tested 6.13.4, breaks the igpu for Ryzen. Kernels with firmware, same as that used on 6.3 and up, works 100% on 5.4 to 6.2.16. This bug is even in a Debian/Ubuntu based OS's Mainline do