Ben, please pick this up for -fixes during Daniel's absense. BR, Jani. On Sat, 28 Dec 2013, Alexander van Heukelum <heukelum@xxxxxxxxxxx> wrote: > My Acer 8510TZ stops displaying anything when X starts with Linus' current > tree. I bisected it down to commit ee1452d74584. > > This patch reverts commit ee1452d74584. commit ee1452d7458451a7508e0663553ce88d63958157 Author: Jani Nikula <jani.nikula@xxxxxxxxx> Date: Fri Sep 20 15:05:30 2013 +0300 drm/i915: assume all GM45 Acer laptops use inverted backlight PWM > After the revert, everything works as before. Also Reported-by: Dylan Borg <borgdylan@xxxxxxxxxxx> for Acer Extensa 5635Z. > Signed-off-by: Alexander van Heukelum <heukelum@xxxxxxxxxxx> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx> > > --- > drivers/gpu/drm/i915/intel_display.c | 19 ++++++++++++++----- > 1 file changed, 14 insertions(+), 5 deletions(-) > > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index 54e82a8..769b864 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -10541,11 +10541,20 @@ static struct intel_quirk intel_quirks[] = { > /* Sony Vaio Y cannot use SSC on LVDS */ > { 0x0046, 0x104d, 0x9076, quirk_ssc_force_disable }, > > - /* > - * All GM45 Acer (and its brands eMachines and Packard Bell) laptops > - * seem to use inverted backlight PWM. > - */ > - { 0x2a42, 0x1025, PCI_ANY_ID, quirk_invert_brightness }, > + /* Acer Aspire 5734Z must invert backlight brightness */ > + { 0x2a42, 0x1025, 0x0459, quirk_invert_brightness }, > + > + /* Acer/eMachines G725 */ > + { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness }, > + > + /* Acer/eMachines e725 */ > + { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness }, > + > + /* Acer/Packard Bell NCL20 */ > + { 0x2a42, 0x1025, 0x034b, quirk_invert_brightness }, > + > + /* Acer Aspire 4736Z */ > + { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness }, > > /* Dell XPS13 HD Sandy Bridge */ > { 0x0116, 0x1028, 0x052e, quirk_no_pcm_pwm_enable }, > -- > 1.8.3.2 > -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel