On Sat, Nov 16, 2024 at 06:07:27PM +0100, Borislav Petkov wrote: > Hi folks, > > got a box here which says: > > [ 4.654361] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > [ 4.660820] 00:06: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A > [ 4.668313] printk: legacy console [ttyS0] disabled > [ 4.676903] serial 00:06: Runtime PM usage count underflow! > [ 4.677175] serial 00:06: disabled > [ 4.677264] serial 00:06: unable to assign resources > [ 4.677356] serial 00:06: probe with driver serial failed with error -16 > [ 4.677923] printk: legacy console [ttyS0] disabled > > Any suggestions? Look in the bios, that seems to be the "old" pnp serial device? Does it really have a serial port on the board? Is it enabled properly? That is odd, what's the chance that someone didn't enable it in acpi somehow? > I'd like to use the serial cable to catch dmesg but somehow the driver doesn't > like the chip... It should be the bog-standard 16550 PNP device, check the resource settings somewhere? Sorry I can't think of anything else at the moment... greg k-h
