ALSA: hda - Disable MSI for Nvidia controller



Judging from the member of enable_msi white-list, Nvidia controller
seems to cause troubles with MSI enabled, e.g. boot hang up or other
serious issue may come up.  It's safer to disable MSI as default for
Nvidia controllers again for now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@kernel.org>

parent b43f6e5e

sound/pci/hda/hda_intel.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -2378,6 +2378,13 @@ static void __devinit check_msi(struct azx *chip)
		"hda_intel: msi for device %04x:%04x set to %d\n",
		q->subvendor, q->subdevice, q->value);
		chip->msi = q->value;
		return;
		}

		/* NVidia chipsets seem to cause troubles with MSI */
		if (chip->driver_type == AZX_DRIVER_NVIDIA) {
		printk(KERN_INFO "hda_intel: Disable MSI for Nvidia chipset\n");
		chip->msi = 0;
		}
		}