http://bugzilla.kernel.org/show_bug.cgi?id=10844
------- Comment #7 from [EMAIL PROTECTED] 2008-06-02 11:37 -------
Well, there's at least one bug in our restore code: we're not even bothering
to restore the interrupt configuration! It may be that disable_device (which
disables interrupts) ends up clearing our IER regs or something. If so, this
patch may help:
diff --git a/drivers/char/drm/i915_drv.c b/drivers/char/drm/i915_drv.c
index e8f3d68..a4da696 100644
--- a/drivers/char/drm/i915_drv.c
+++ b/drivers/char/drm/i915_drv.c
@@ -499,6 +499,11 @@ static int i915_resume(struct drm_device *dev)
/* FIXME: restore TV & SDVO state */
+ /* Interrupt state */
+ I915_WRITE(I915REG_INT_IDENTITY_R, dev_priv->saveIIR);
+ I915_WRITE(I915REG_INT_ENABLE_R, dev_priv->saveIER);
+ I915_WRITE(I915REG_INT_MASK_R, dev_priv->saveIMR);
+
/* FBC info */
I915_WRITE(FBC_CFB_BASE, dev_priv->saveFBC_CFB_BASE);
I915_WRITE(FBC_LL_BASE, dev_priv->saveFBC_LL_BASE);
--
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