Thanks for comment.
I'm not familiar with that, so just followed the patch in mes
https://patchwork.freedesktop.org/patch/124918/a.

How about change subtitle to "drm/i915: Increase max CRTC bounds to 16k for
gen9+"?

On Thu, Dec 7, 2017 at 5:32 PM, Chris Wilson <chris@chris-wilson.co.uk>
wrote:

> Quoting Alex Tu (2017-12-07 09:26:00)
> > Rrefer to another patch [1] on mesa to extend width/height to 16384.
> > For issue :
> >  - https://bugs.freedesktop.org/show_bug.cgi?id=102508
> >  - LP: #1714178 Triple monitor display failed with Dell Dock (HiDPI)
> >
> > [1] https://patchwork.freedesktop.org/patch/124918/
> >
> > Signed-off-by: Alex Tu <alex.tu@canonical.com>
> > ---
> >  drivers/gpu/drm/i915/intel_display.c | 6 +++---
> >  1 file changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> > index 47a2f6acee50..556fa57b18b8 100644
> > --- a/drivers/gpu/drm/i915/intel_display.c
> > +++ b/drivers/gpu/drm/i915/intel_display.c
> > @@ -13905,7 +13905,7 @@ u32 intel_fb_pitch_limit(struct drm_i915_private
> *dev_priv,
> >                 /* "The stride in bytes must not exceed the of the size
> of 8K
> >                  *  pixels and 32K bytes."
> >                  */
> > -               return min(8192 * cpp, 32768);
> > +               return min(16384 * cpp, 65536);
> >         } else if (gen >= 5 && !HAS_GMCH_DISPLAY(dev_priv)) {
> >                 return 32*1024;
> >         } else if (gen >= 4) {
> > @@ -14604,8 +14604,8 @@ int intel_modeset_init(struct drm_device *dev)
> >                 dev->mode_config.max_width = 4096;
> >                 dev->mode_config.max_height = 4096;
> >         } else {
> > -               dev->mode_config.max_width = 8192;
> > -               dev->mode_config.max_height = 8192;
> > +               dev->mode_config.max_width = 16384;
> > +               dev->mode_config.max_height = 16384;
>
> These are nothing to do with texture size, but single CRTC bounds.
> -Chris
>