From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Jani Nikula <jani.nikula@linux.intel.com>,
intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Rodrigo Vivi <rodrigo.vivi@intel.com>
Subject: Re: Bad flicker on skylake HQD due to code in the 4.7 merge window
Date: Tue, 31 May 2016 06:33:58 -0700 [thread overview]
Message-ID: <1464701638.2234.1.camel@HansenPartnership.com> (raw)
In-Reply-To: <871t4ibr7k.fsf@intel.com>
On Tue, 2016-05-31 at 10:51 +0300, Jani Nikula wrote:
> On Mon, 30 May 2016, James Bottomley <
> James.Bottomley@HansenPartnership.com> wrote:
> > I've tested a pristine 4.6.0 system, so it's definitely something
> > that
> > went in during the merge window. The flicker isn't continuous,
> > it's
> > periodic, with an interval of something like 2-5 seconds. It looks
> > like an old analogue TV going out of sync and then resyncing. I've
> > attached the dmesg and X.org log below just in case they can help.
> > I
> > might be able to bisect this next week, but, unfortunately, this is
> > my
> > current laptop and I'm travelling this week.
>
> Please try i915.enable_psr=0 module parameter.
Makes no discernable difference. Current parameter settings are:
disable_display: N
disable_power_well: 1
edp_vswing: 0
enable_cmd_parser: 1
enable_dc: -1
enable_dp_mst: Y
enable_execlists: 1
enable_fbc: -1
enable_guc_submission: N
enable_hangcheck: Y
enable_ips: 1
enable_ppgtt: 3
enable_psr: 0
enable_rc6: 1
fastboot: N
guc_log_level: -1
inject_load_failure: 0
invert_brightness: 0
load_detect_test: N
lvds_channel_mode: 0
lvds_use_ssc: -1
mmio_debug: 0
modeset: -1
nuclear_pageflip: N
panel_ignore_lid: 1
prefault_disable: N
preliminary_hw_support: 1
reset: Y
semaphores: -1
use_mmio_flip: 0
vbt_sdvo_panel_type: -1
verbose_state_checks: Y
James
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WARNING: multiple messages have this Message-ID (diff)
From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Jani Nikula <jani.nikula@linux.intel.com>,
intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Rodrigo Vivi <rodrigo.vivi@intel.com>
Subject: Re: Bad flicker on skylake HQD due to code in the 4.7 merge window
Date: Tue, 31 May 2016 06:33:58 -0700 [thread overview]
Message-ID: <1464701638.2234.1.camel@HansenPartnership.com> (raw)
In-Reply-To: <871t4ibr7k.fsf@intel.com>
On Tue, 2016-05-31 at 10:51 +0300, Jani Nikula wrote:
> On Mon, 30 May 2016, James Bottomley <
> James.Bottomley@HansenPartnership.com> wrote:
> > I've tested a pristine 4.6.0 system, so it's definitely something
> > that
> > went in during the merge window. The flicker isn't continuous,
> > it's
> > periodic, with an interval of something like 2-5 seconds. It looks
> > like an old analogue TV going out of sync and then resyncing. I've
> > attached the dmesg and X.org log below just in case they can help.
> > I
> > might be able to bisect this next week, but, unfortunately, this is
> > my
> > current laptop and I'm travelling this week.
>
> Please try i915.enable_psr=0 module parameter.
Makes no discernable difference. Current parameter settings are:
disable_display: N
disable_power_well: 1
edp_vswing: 0
enable_cmd_parser: 1
enable_dc: -1
enable_dp_mst: Y
enable_execlists: 1
enable_fbc: -1
enable_guc_submission: N
enable_hangcheck: Y
enable_ips: 1
enable_ppgtt: 3
enable_psr: 0
enable_rc6: 1
fastboot: N
guc_log_level: -1
inject_load_failure: 0
invert_brightness: 0
load_detect_test: N
lvds_channel_mode: 0
lvds_use_ssc: -1
mmio_debug: 0
modeset: -1
nuclear_pageflip: N
panel_ignore_lid: 1
prefault_disable: N
preliminary_hw_support: 1
reset: Y
semaphores: -1
use_mmio_flip: 0
vbt_sdvo_panel_type: -1
verbose_state_checks: Y
James
next prev parent reply other threads:[~2016-05-31 13:33 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-30 19:59 Bad flicker on skylake HQD due to code in the 4.7 merge window James Bottomley
2016-05-31 7:51 ` Jani Nikula
2016-05-31 13:33 ` James Bottomley [this message]
2016-05-31 13:33 ` James Bottomley
2016-06-13 10:14 ` Jani Nikula
2016-06-13 10:14 ` Jani Nikula
2016-06-16 21:15 ` James Bottomley
2016-06-16 21:24 ` Daniel Vetter
2016-06-16 21:24 ` [Intel-gfx] " Daniel Vetter
2016-06-16 21:29 ` James Bottomley
2016-06-16 21:29 ` James Bottomley
2016-06-16 22:42 ` James Bottomley
2016-06-16 22:42 ` [Intel-gfx] " James Bottomley
2016-06-17 7:28 ` Daniel Vetter
2016-06-17 7:28 ` [Intel-gfx] " Daniel Vetter
2016-06-17 13:34 ` Jani Nikula
2016-06-17 13:34 ` [Intel-gfx] " Jani Nikula
2016-06-17 16:08 ` James Bottomley
2016-06-17 23:06 ` James Bottomley
2016-06-17 23:06 ` [Intel-gfx] " James Bottomley
2016-06-19 21:53 ` James Bottomley
2016-06-19 21:53 ` [Intel-gfx] " James Bottomley
2016-06-20 8:03 ` Jani Nikula
2016-06-20 8:03 ` Jani Nikula
2016-06-21 13:53 ` James Bottomley
2016-06-21 13:53 ` [Intel-gfx] " James Bottomley
2016-06-21 15:44 ` Ville Syrjälä
2016-06-21 15:44 ` [Intel-gfx] " Ville Syrjälä
2016-06-21 21:00 ` James Bottomley
2016-06-21 21:00 ` [Intel-gfx] " James Bottomley
2016-06-23 11:25 ` James Bottomley
2016-06-23 11:25 ` James Bottomley
2016-07-02 6:24 ` Thorsten Leemhuis
2016-07-02 6:24 ` [Intel-gfx] " Thorsten Leemhuis
2016-07-07 16:14 ` Ville Syrjälä
2016-07-07 16:14 ` Ville Syrjälä
2016-07-07 16:55 ` James Bottomley
2016-07-07 16:55 ` James Bottomley
2016-07-07 19:19 ` James Bottomley
2016-07-07 19:19 ` James Bottomley
2016-07-08 10:19 ` Ville Syrjälä
2016-07-08 10:19 ` Ville Syrjälä
2016-07-08 14:48 ` James Bottomley
2016-07-08 14:48 ` James Bottomley
2016-07-08 16:56 ` Ville Syrjälä
2016-07-08 16:56 ` [Intel-gfx] " Ville Syrjälä
2016-07-12 12:00 ` [PATCH] drm/i915: Ignore panel type from OpRegion on SKL ville.syrjala
2016-07-13 12:04 ` Daniel Vetter
2016-07-13 13:09 ` Ville Syrjälä
2016-07-13 13:33 ` James Bottomley
2016-07-13 13:36 ` Ville Syrjälä
2016-07-14 13:12 ` Ville Syrjälä
2016-07-12 13:12 ` ✗ Ro.CI.BAT: warning for " Patchwork
2016-07-14 13:02 ` Ville Syrjälä
2016-09-11 14:10 ` [Intel-gfx] Bad flicker on skylake HQD due to code in the 4.7 merge window James Hogan
2016-09-13 13:59 ` Jani Nikula
2016-09-13 13:59 ` Jani Nikula
2016-06-23 12:52 ` Steven Newbury
2016-06-23 12:59 ` Jani Nikula
2016-06-23 12:59 ` Jani Nikula
2016-06-23 13:14 ` Steven Newbury
2016-06-23 13:14 ` [Intel-gfx] " Steven Newbury
2016-06-24 10:59 ` Chris Wilson
2016-06-24 10:59 ` [Intel-gfx] " Chris Wilson
2016-06-24 11:48 ` Steven Newbury
2016-06-24 11:48 ` Steven Newbury
2016-06-24 12:42 ` Chris Wilson
2016-06-24 12:42 ` Chris Wilson
2016-07-12 10:08 ` Daniel Vetter
2016-09-14 9:43 ` Jani Nikula
2016-06-17 8:12 ` Chris Wilson
2016-06-17 8:12 ` [Intel-gfx] " Chris Wilson
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