On Sun, Oct 12, 2025 at 01:37:33PM -0500, Mario Limonciello wrote:
>
>
> On 10/12/25 1:23 PM, Eric Biggers wrote:
> > Hi,
> >
> > On Mon, Aug 11, 2025 at 11:26:04AM -0500, Mario Limonciello (AMD) wrote:
> > > vga_is_firmware_default() checks firmware resources to find the owner
> > > framebuffer resources to find the firmware PCI device. This is an
> > > open coded implementation of screen_info_pci_dev(). Switch to using
> > > screen_info_pci_dev() instead.
> > >
> > > Acked-by: Bjorn Helgaas <[email protected]>
> > > Suggested-by: Thomas Zimmermann <[email protected]>
> > > Signed-off-by: Mario Limonciello (AMD) <[email protected]>
> >
> > I'm getting a black screen on boot on mainline, and it bisected to this
> > commit. Reverting this commit fixed it.
> >
> > Please revert.
> >
> > - Eric
>
> Can you please share more information about your issue before we jump
> straight into a revert? What kind of hardware do you have? Perhaps a
> kernel log from mainline and another from mainline with the revert could
> help identify what's going on?
>
> A revert might be the right solution, but I would rather fix the issue if
> it's plausible to do so.
Relevant hardware is:
AMD Ryzen 9 9950X 16-Core Processor
Radeon RX 9070
The following message appears in the good log but not the bad log:
fbcon: amdgpudrmfb (fb0) is primary device
I don't have CONFIG_SCREEN_INFO enabled, so the commit changed
vga_is_firmware_default() to always return false.
If DRM_AMDGPU depends on SCREEN_INFO now, it needs to select it.
- Eric
