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From: Thomas Richter <thor@math.tu-berlin.de>
To: intel-gfx@lists.freedesktop.org, Daniel Vetter <daniel@ffwll.ch>
Subject: i830 watermark problems - status?
Date: Mon, 25 Nov 2013 16:14:12 +0100	[thread overview]
Message-ID: <52936944.1080906@math.tu-berlin.de> (raw)
In-Reply-To: <16967_1385369810_529310D2_16967_15891_1_20131125085723.GW27344@phenom.ffwll.local>

Hi Daniel, hi group,

just being curious - what is the status of the i830 watermark problems, 
i.e. the state of affairs
concerning that the i830 does not allow the maximum watermark value, but 
requires a "headroom" of eight entries to
avoid flickering.

I provided a patch for this a while ago, but this seems to go nowhere. 
Just to remind you: The current code does not create
a stable image on i830 based devices, even if only an internal display 
is connected.

I provided two possible attacks to the problem: A quick and dirty method 
which checks for the maximum value for
i830 manually, or an overall solution which adds a "minimum" watermark 
value for all supported chipsets.

Please let me know how to proceed.

Thanks,
     Thomas

  parent reply	other threads:[~2013-11-25 15:14 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1385093524-22276-1-git-send-email-keithp@keithp.com>
     [not found] ` <20131122102632.GQ27344@phenom.ffwll.local>
     [not found]   ` <86d2lsem3m.fsf@miki.keithp.com>
2013-11-22 16:17     ` [Mesa-dev] [PATCH] dri3, i915, i965: Add __DRI_IMAGE_FOURCC_SARGB8888 Daniel Vetter
2013-11-22 17:46       ` Ville Syrjälä
2013-11-22 22:12       ` [Intel-gfx] " Kristian Høgsberg
2013-11-22 23:05         ` Ville Syrjälä
2013-11-22 23:43           ` Keith Packard
2013-11-23  1:10             ` Ville Syrjälä
2013-11-25 14:57               ` Geert Uytterhoeven
2013-11-22 23:36         ` [Intel-gfx] " Keith Packard
2013-11-25  8:57         ` [Mesa-dev] " Daniel Vetter
2013-11-25 14:15           ` Ville Syrjälä
     [not found]         ` <16967_1385369810_529310D2_16967_15891_1_20131125085723.GW27344@phenom.ffwll.local>
2013-11-25 15:14           ` Thomas Richter [this message]
2013-11-25 15:23             ` i830 watermark problems - status? Daniel Vetter
     [not found]             ` <26487_1385392973_52936B4D_26487_126_1_20131125152331.GB27344@phenom.ffwll.local>
2013-11-25 15:55               ` Thomas Richter
2013-11-25 20:30                 ` Daniel Vetter
     [not found]                 ` <26487_1385411456_5293B380_26487_2367_1_CAKMK7uFFZcf92XbzA9Mj2c0fdhDWZMKkZVNK9yy8Shc8pcLygg@mail.gmail.com>
2013-11-30 20:11                   ` Thomas Richter
2013-12-19 14:01                   ` intel-drm-nightly: hang and black screen on i830 Thomas Richter

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