Linux 5.15.x: matroxfb: cannot determine memory size

[pmenzel]

Since Linux 5.15, the todsuenden systems Dell PowerEdge R910, at least, Linux logs a new error:

$ dmesg --level=err
[    4.939029] ACPI: SPCR: Unexpected SPCR Access Width.  Defaulting to byte size
[   12.100010] x86/cpu: VMX (outside TXT) disabled by BIOS
[   31.717307] matroxfb: cannot determine memory size

This matroxfb error is not shown by Linux 5.10 and before.