From c20bd72fbb8a04dffe218b2205c226d1da2c20ba Mon Sep 17 00:00:00 2001 From: 0x221E <0x221E@0xinfinity.dev> Date: Sun, 12 Apr 2026 23:14:34 +0200 Subject: potential firmware bug on intel hda sound. Firmware disables MSI causing legacy irqs to be used for intel audio chipsets. However, on my device it causes powertop to display Alderlake as being used 100% and "Disabling MSI" to be printed. --- sound/hda/controllers/intel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/hda/controllers/intel.c b/sound/hda/controllers/intel.c index c01108f8cb7f..7fa749ea1307 100644 --- a/sound/hda/controllers/intel.c +++ b/sound/hda/controllers/intel.c @@ -1677,8 +1677,8 @@ static void check_msi(struct azx *chip) /* NVidia chipsets seem to cause troubles with MSI */ if (chip->driver_caps & AZX_DCAPS_NO_MSI) { - dev_info(chip->card->dev, "Disabling MSI\n"); - chip->msi = 0; + dev_info(chip->card->dev, "Disabling MSI\n"); // 0x221E: MSI Cyborg + nvidia bug! + chip->msi = 0; // 0x221E: Test whether this should be enabled or not! } } -- cgit v1.2.3