Packard Bell EasyNote LV need i915.invert_brightness=1

Petter Reinholdtsen pere at
Tue Jun 11 01:28:40 PDT 2013

[Petter Reinholdtsen 2013-06-03]
> According to modinfo i915, I should report machines/video cards
> needing the invert_brightness=1 setting here.  The laptop in question
> is described on <URL: >.
> The screen go black as soon as the i915 kernel module is loaded.  The
> problem exist in both Debian Wheezy and Ubuntu Raring.

I had a closer look at the problem, and came up with a patch for the
kernel that should fix this, relative to the Debian source 3.9.5-1:

--- drivers/gpu/drm/i915/intel_display.c.orig	2013-06-11 09:44:27.159941945 +0200
+++ drivers/gpu/drm/i915/intel_display.c	2013-06-11 09:45:35.495938898 +0200
@@ -8786,6 +8786,9 @@
 	/* Acer Aspire 4736Z */
 	{ 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
+	/* Packard Bell EasyNote LV11HC */
+	{ 0x0156, 0x1025, 0x0688, quirk_invert_brightness },
 static void intel_init_quirks(struct drm_device *dev)

> PS: Please cc me, as I am not subscribed to the mailing list.

My initial email have not yet shown up on the mailing list archive,
but I try again and hope this one fare further. :)

Happy hacking
Petter Reinholdtsen

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