[Bug 108546] Loading i915 kernel module breaks NVMe PCI device on the new Coffee Lake box

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108546

--- Comment #10 from Takashi Iwai <tiwai at suse.de> ---
So I tried to hack around the function, just like

--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1921,7 +1921,7 @@ intel_hdmi_detect(struct drm_connector *connector, bool
force)

        intel_display_power_get(dev_priv, POWER_DOMAIN_GMBUS);

-       if (IS_ICELAKE(dev_priv) &&
+       if (//IS_ICELAKE(dev_priv) &&
            !intel_digital_port_connected(encoder))
                goto out;


... and this seems working.  No NVMe-related errors are seen after this.

I don't mean that this is the right fix, but it indicates that poking the HDMI
detection for HDMI-3 screws up the NVMe on PCIe, apparently.

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