Dear Jorge,
On 2019-11-12 15:12, Jorge Fernandez Monteagudo wrote:
> I have a little problem trying to get a vesa framebuffer when booting my
> system.
What board with what graphics device is it?
> I have the system with the original bios and the vesa fb working. These are
> the
> relevant dmesg traces:
[…]
> With the system and my modified coreboot I can get a vesa fb working and I
> get no image on
> screen until the amdgpu driver is loaded and the Xorg is running. The
> suspicious dmesg traces
> are:
>
> [ 0.253527] PCI host bridge to bus 0000:00
> [ 0.253529] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
> [ 0.253530] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
> [ 0.253531] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
> [ 0.253532] pci_bus 0000:00: root bus resource [mem 0x000c0000-0x000dffff]
> [ 0.253533] pci_bus 0000:00: root bus resource [mem 0xd0000000-0xffffffff]
> [ 0.253535] pci_bus 0000:00: root bus resource [bus 00-ff]
> [ 0.253544] pci 0000:00:00.0: [1022:1576] type 00 class 0x060000
> [ 0.253640] pci 0000:00:01.0: [1002:9874] type 00 class 0x030000
> [ 0.253658] pci 0000:00:01.0: reg 0x10: [mem 0xe0000000-0xefffffff 64bit
> pref]
> [ 0.253666] pci 0000:00:01.0: reg 0x18: [mem 0xf0000000-0xf07fffff 64bit
> pref]
> [ 0.253672] pci 0000:00:01.0: reg 0x20: [io 0x2000-0x20ff]
> [ 0.253677] pci 0000:00:01.0: reg 0x24: [mem 0xf0b00000-0xf0b3ffff]
> [ 0.253682] pci 0000:00:01.0: reg 0x30: [mem 0xf0b40000-0xf0b5ffff pref]
> [ 0.253723] pci 0000:00:01.0: supports D1 D2
> [ 0.253724] pci 0000:00:01.0: PME# supported from D1 D2 D3hot
> ...
> [ 0.267038] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window]
> [ 0.267039] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window]
> [ 0.267041] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff]
> [ 0.267042] pci_bus 0000:00: resource 7 [mem 0x000c0000-0x000dffff]
> [ 0.267043] pci_bus 0000:00: resource 8 [mem 0xd0000000-0xffffffff]
>
> In this case the resource 10 related to the mem address 0xe0000000 is not
> int the pci_bus 0000:00: root bus resource list and is not in pci_bus
> 0000:00: resourceX
> list... and this is the address related to the framebuffer.
>
> What could it be the source of the problem?
Please always attach the coreboot logs and the CBFS content.
build/cbfstool build/coreboot.rom print
Do you run the VGA Option ROM? Without it, you won’t get any output until
a proper driver sets up the device to my knowledge.
Kind regards,
Paul
smime.p7s
Description: S/MIME Cryptographic Signature
_______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
