On 04/09/2013 07:42 PM, Hans de Bruin wrote: > On 04/09/2013 06:40 PM, Daniel Vetter wrote: >> Can you please quickly test whether the below patch changes anything >> in the behaviour? >> >> diff --git a/drivers/gpu/drm/i915/intel_display.c >> b/drivers/gpu/drm/i915/intel_display.c >> index 8809813..974ae32 100644 >> --- a/drivers/gpu/drm/i915/intel_display.c >> +++ b/drivers/gpu/drm/i915/intel_display.c >> @@ -4715,7 +4715,7 @@ static int i9xx_crtc_mode_set(struct drm_crtc >> *crtc, >> >> i9xx_set_pipeconf(intel_crtc); >> >> - intel_enable_pipe(dev_priv, pipe, false); >> + //intel_enable_pipe(dev_priv, pipe, false); >> >> intel_wait_for_vblank(dev, pipe); >> >> >> > > > for some reason the diff did not work. Here a snippet of my modified > intel_display.c: > > > ... > /* pipesrc and dspsize control the size that is scaled from, > * which should always be the user's requested size. > */ > I915_WRITE(DSPSIZE(plane), > ((mode->vdisplay - 1) << 16) | > (mode->hdisplay - 1)); > I915_WRITE(DSPPOS(plane), 0); > > I915_WRITE(PIPECONF(pipe), pipeconf); > POSTING_READ(PIPECONF(pipe)); > //intel_enable_pipe(dev_priv, pipe, false); > > intel_wait_for_vblank(dev, pipe); > > I915_WRITE(DSPCNTR(plane), dspcntr); > POSTING_READ(DSPCNTR(plane)); > ... > > The screen still does not scale. > > > By the way, I have had this problem before: > https://bugzilla.kernel.org/show_bug.cgi?id=43071 sorry my mistake that one did scale, but just was not alligned properly. -- Hans
