This is a note to let you know that I've just added the patch titled drm/i915: Toshiba CB35 has a controllable backlight to the 3.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-i915-toshiba-cb35-has-a-controllable-backlight.patch and it can be found in the queue-3.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From d4967d8c6d4f52623f2be8eaff0b445dc5863c92 Mon Sep 17 00:00:00 2001 From: Scot Doyle <lkml14@xxxxxxxxxxxxx> Date: Thu, 3 Jul 2014 23:27:52 +0000 Subject: drm/i915: Toshiba CB35 has a controllable backlight From: Scot Doyle <lkml14@xxxxxxxxxxxxx> commit d4967d8c6d4f52623f2be8eaff0b445dc5863c92 upstream. The Toshiba CB35 Chromebook (with Celeron 2955U CPU) has a controllable backlight although its VBT reports otherwise. Apply quirk to ignore the backlight presence check during backlight setup. Patch tested by author on Toshiba CB35. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79813 Signed-off-by: Scot Doyle <lkml14@xxxxxxxxxxxxx> CC: Jani Nikula <jani.nikula@xxxxxxxxx> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> [danvet: Add cc: stable because the regressing commit is in 3.15.] Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/intel_display.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -11248,6 +11248,9 @@ static struct intel_quirk intel_quirks[] /* Acer C720 and C720P Chromebooks (Celeron 2955U) have backlights */ { 0x0a06, 0x1025, 0x0a11, quirk_backlight_present }, + + /* Toshiba CB35 Chromebook (Celeron 2955U) */ + { 0x0a06, 0x1179, 0x0a88, quirk_backlight_present }, }; static void intel_init_quirks(struct drm_device *dev) Patches currently in stable-queue which might be from lkml14@xxxxxxxxxxxxx are queue-3.15/drm-i915-toshiba-cb35-has-a-controllable-backlight.patch queue-3.15/drm-i915-quirk-asserts-controllable-backlight-presence-overriding-vbt.patch queue-3.15/drm-i915-acer-c720-and-c720p-have-controllable-backlights.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html