Debian: can't find IRQ for PCI INT A; probably buggy MP table

Xeratul · 07-29-2014, 02:48 AM

Hello,

I have no sound and no wifi. The kernel is new and ath9k is there and loaded.

However with booting into the kernel with pci=biosirq, I still have no sound.

Any ideas?
thank you

Code:

[    4.760295] sd 0:0:0:0: Attached scsi generic sg0 type 0
[    6.073489] kjournald starting.  Commit interval 5 seconds
[    6.073528] EXT3-fs (sda2): mounted filesystem with ordered data mode
[    8.047148] udevd[271]: starting version 175
[    8.528289] input: PC Speaker as /devices/platform/pcspkr/input/input1
[    8.908440] cfg80211: Calling CRDA to update world regulatory domain
[    8.991543] Linux media interface: v0.10
[    9.054083] Linux video capture interface: v2.00
[    9.176431] uvcvideo: Found UVC 1.00 device USB2.0 HD UVC WebCam (0bda:5603)
[    9.223569] ath9k 0000:02:00.0: can't find IRQ for PCI INT A; probably buggy MP table
[    9.224679] input: USB2.0 HD UVC WebCam as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/input/input2
[    9.224907] usbcore: registered new interface driver uvcvideo
[    9.224911] USB Video Class driver (1.1.1)
[    9.417246] ath9k 0000:02:00.0: setting latency timer to 64
[    9.417801] ath9k 0000:02:00.0: request_irq failed
[    9.469394] ath9k: probe of 0000:02:00.0 failed with error -16
[    9.525992] psmouse serio4: elantech: assuming hardware version 4 (with firmware version 0x461f1a)
[    9.660134] psmouse serio4: elantech: Synaptics capabilities query result 0x10, 0x15, 0x0c.
[    9.792921] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio4/input/input3
[   10.012573] snd_hda_intel 0000:00:1b.0: can't find IRQ for PCI INT A; probably buggy MP table
[   10.066152] snd_hda_intel 0000:00:1b.0: irq 109 for MSI/MSI-X
[   10.066194] snd_hda_intel 0000:00:1b.0: setting latency timer to 64

uname -a
Linux debian-stable 3.2.0-4-686-pae #1 SMP Debian 3.2.57-3 i686 GNU/Linux

Ser Olmy · 07-29-2014, 03:14 AM

As you mention in the thread title, this is probably due to the kernel not being able to read or parse the ESCD PnP data generated by the BIOS. This is not likely to be a Debian-specific problem; it might be kernel-specific (the motherboard may require some particular quirk which a later kernel may know about), or it could be a BIOS bug.

If a BIOS upgrade is available for your system/motherboard, that might very well solve the problem. You could also try resetting the ESCD data in the BIOS: enter the BIOS setup routine and look for a setting called "Reset ESCD Data"/"Reset PnP Data" or something to that effect.

odin_ago · 08-26-2014, 07:12 PM

Exactly the same problem here (asus x200ma)