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Red Hat Bugzilla – Attachment 612185 Details for
Bug 528312
udev takes almost 100% CPU due to xorg (intel) continuously re-initializing displays
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[patch]
Ported the workaround patch to kernel 3.5.3
linux-3.5.3-intel-iommu-fix-528312.patch (text/plain), 834 bytes, created by
Roland Tapken
on 2012-09-12 17:13:47 UTC
(
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Description:
Ported the workaround patch to kernel 3.5.3
Filename:
MIME Type:
Creator:
Roland Tapken
Created:
2012-09-12 17:13:47 UTC
Size:
834 bytes
patch
obsolete
>diff -ru linux-3.5.3-1.fc17.x86_64.bak/drivers/gpu/drm/i915/i915_irq.c linux-3.5.3-1.fc17.x86_64/drivers/gpu/drm/i915/i915_irq.c >--- linux-3.5.3-1.fc17.x86_64.bak/drivers/gpu/drm/i915/i915_irq.c 2012-09-12 17:18:43.162520861 +0200 >+++ linux-3.5.3-1.fc17.x86_64/drivers/gpu/drm/i915/i915_irq.c 2012-09-12 17:21:27.441153542 +0200 >@@ -36,6 +36,11 @@ > #include "i915_drv.h" > #include "i915_trace.h" > #include "intel_drv.h" >+#include <linux/moduleparam.h> >+ >+static u32 i915_hotplug_mask = 0; >+module_param_named(hotplug_mask, i915_hotplug_mask, uint, 0400); >+MODULE_PARM_DESC(hotplug_mask, "Disable these hotplug bits (non-Ironlake)"); > > /* For display hotplug interrupt */ > static void >@@ -2177,6 +2182,7 @@ > > /* Ignore TV since it's buggy */ > >+ hotplug_en &= ~i915_hotplug_mask; > I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); > } >
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