basically you download mesa's source code with git clone , then set good/bad points in git history, and rebuild/install/test until bad commit will be found. Of course some commits might introduce more errors or break build itself ....
But hopefully developers will at least run cingg on their end first, may be this is something simple and obvious for them.
I think report as written below is ok. You might need to leave few more details like kernel version etc, but last time I was there we had template to fill in .....
I use Cinelerra-GG (CinGG) as a video editing program on Arch linux,
KDE and XOrg graphics server. CinGG can run either with OpenGL or with
X11. In switching from mesa 24.1 to 24.2, the OpenGL mode of CinGG no
longer works: I have warning messages and frequent freezes.
After startup the program I have the following message:
BC_DisplayInfo::gl_fb_config failed
If I load one or more media in CinGG, when I set the X11-OpenGL
driver, I get the following warning:
void AWindowGUI::update_asset_list():
Warning: /home/paz/test/sad_woman.mxf
dimensions 1920x1080 exceed OpenGL texture limit 0
void AWindowGUI::update_asset_list():
Warning: /home/paz/test/Unusual_Habitat.wav
dimensions 0x0 exceed OpenGL texture limit 0
void AWindowGUI::update_asset_list():
Warning: /home/paz/test/video (2160p)HDR_01.mp4
dimensions 3840x2160 exceed OpenGL texture limit 0
void AWindowGUI::update_asset_list():
Warning: /home/paz/test/vp.webm
dimensions 512x288 exceed OpenGL texture limit 0
In X11 mode the errors do not occur.
In Wayland the errors do not occur.
In mesa 24.1.6 the errors do not occur.
Glxgears and glmark2 work without problems.
Arch linux is a rolling and everything is up to date.
I have an AMD Radeon RX5700X (Navi10) with amdgpu drivers.
I am a simple user of CinGG and have no ability to operate on the code.
If you want to try CinGG there is appimage that works on many
different linux distros (https://cinelerra-gg.org/download/images/).