From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Fabian Pie <fpie@teleker.com>
Subject: Screen flicker regression on Baytrail
Date: Thu, 27 Oct 2016 13:48:36 -0500 [thread overview]
Message-ID: <22cc36c5-e29a-ef95-c86e-9c8af0051128@linux.intel.com> (raw)
While testing our upcoming HDMI audio patches, I experienced pretty bad
screen flicker regressions on my Baytrail compute stick. This happens
with both v09-rc2 and drm-intel-nightly.
A quick bisect with all the audio patches removed points to the
following commit:
2efb813d5388e18255c54afac77bd91acd586908 is the first bad commit
commit 2efb813d5388e18255c54afac77bd91acd586908
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu Aug 18 17:17:06 2016 +0100
drm/i915: Fallback to using unmappable memory for scanout
More logs below. I don't have the background to fix this myself and I
don't see an obvious link with Baytrail but I hope someone smarter than
me can help fix this
-Pierre
git bisect start
# bad: [d8923dcfa53d59886d432a3fc430e26cb92ce86a] drm/i915: Track
display alignment on VMA
git bisect bad d8923dcfa53d59886d432a3fc430e26cb92ce86a
# good: [03af84fe7f48937941fbb4dcd6cf66c68ae0edd4] drm/i915: Choose
partial chunksize based on tile row size
git bisect good 03af84fe7f48937941fbb4dcd6cf66c68ae0edd4
# good: [50349247ea807ad0950bbcedb1abb576e6a785db] drm/i915: Drop
ORIGIN_GTT for untracked GTT writes
git bisect good 50349247ea807ad0950bbcedb1abb576e6a785db
# bad: [2efb813d5388e18255c54afac77bd91acd586908] drm/i915: Fallback to
using unmappable memory for scanout
git bisect bad 2efb813d5388e18255c54afac77bd91acd586908
# good: [821188778b9be2050d45490c4b2b009d51f041e0] drm/i915: Choose not
to evict faultable objects from the GGTT
git bisect good 821188778b9be2050d45490c4b2b009d51f041e0
# first bad commit: [2efb813d5388e18255c54afac77bd91acd586908] drm/i915:
Fallback to using unmappable memory for scanout
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next reply other threads:[~2016-10-27 18:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-27 18:48 Pierre-Louis Bossart [this message]
2016-10-28 5:43 ` Screen flicker regression on Baytrail Jani Nikula
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=22cc36c5-e29a-ef95-c86e-9c8af0051128@linux.intel.com \
--to=pierre-louis.bossart@linux.intel.com \
--cc=fpie@teleker.com \
--cc=intel-gfx@lists.freedesktop.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.