Date: Wed, 11 Feb 2015 08:05:26 -0800 From: Adrian Chadd <adrian@freebsd.org> To: Ian FREISLICH <ianf@capeaugusta.com> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: r277959 breaks X display on IvyBridge mobile GT2 IG Message-ID: <CAJ-Vmo=aiXAdm%2B%2B9B=VW9muoqFjKSizLayvNMN0ZpV4eyxEK0w@mail.gmail.com> In-Reply-To: <E1YLZQ5-000GX8-Pk@clue.co.za> References: <E1YLZQ5-000GX8-Pk@clue.co.za>
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Hi, There's a "invert backlight" option in i915, try setting it to 1? -a On 11 February 2015 at 07:41, Ian FREISLICH <ianf@capeaugusta.com> wrote: > Hi > > With this commit my display blanks and never lights up when X starts. > > [zen] /usr/src # svn diff -r 277958:277959 > Index: sys/dev/drm2/i915/intel_display.c > =================================================================== > --- sys/dev/drm2/i915/intel_display.c (revision 277958) > +++ sys/dev/drm2/i915/intel_display.c (revision 277959) > @@ -6995,7 +6995,7 @@ > */ > I915_WRITE(BLC_PWM_CPU_CTL2, PWM_ENABLE); > I915_WRITE(BLC_PWM_CPU_CTL, 0); > - I915_WRITE(BLC_PWM_PCH_CTL1, PWM_ENABLE | (1<<30)); > + I915_WRITE(BLC_PWM_PCH_CTL1, PWM_ENABLE); > } > > void intel_modeset_init_hw(struct drm_device *dev) > > > vgapci0@pci0:0:2:0: class=0x030000 card=0x15171043 chip=0x01668086 rev=0x09 > hdr=0x00 > vendor = 'Intel Corporation' > device = '3rd Gen Core processor Graphics Controller' > class = display > subclass = VGA > cap 05[90] = MSI supports 1 message enabled with 1 message > cap 01[d0] = powerspec 2 supports D0 D3 current D0 > cap 13[a4] = PCI Advanced Features: FLR TP > > Ian > > -- > Ian Freislich > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
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