From: "Bruno Prémont" <bonbons@linux-vserver.org>
To: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: 3.13-rc2, i855, [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock
Date: Thu, 5 Dec 2013 23:13:41 +0100 [thread overview]
Message-ID: <20131205231341.6a543744@neptune.home> (raw)
In-Reply-To: <20131205104956.GX10036@intel.com>
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Hi Ville,
On Thu, 05 December 2013 Ville Syrjälä wrote:
> On Wed, Dec 04, 2013 at 09:09:22PM +0100, Bruno Prémont wrote:
> > [ 1.621199] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock (expected 108000, found 48000)
>
> Hmm. Kind of looks like we're reading/parsing the PLL registers incorrectly.
>
> Let's try to see what the driver thinks the registers contain:
Below a summary of the PLL values, full dmesg attached
(gzip-compressed to be polite on mailboxes):
...
[ 0.976312] [drm:intel_dump_pipe_config], DPLL = 0x808b0000
[ 0.976315] [drm:intel_dump_pipe_config], DPLL_MD = 0x0
[ 0.976317] [drm:intel_dump_pipe_config], FP0 = 0x21207
[ 0.976319] [drm:intel_dump_pipe_config], FP1 = 0x21207
...
[ 0.976367] [drm:intel_dump_pipe_config], DPLL = 0x90020000
[ 0.976369] [drm:intel_dump_pipe_config], DPLL_MD = 0x0
[ 0.976371] [drm:intel_dump_pipe_config], FP0 = 0x2140e
[ 0.976373] [drm:intel_dump_pipe_config], FP1 = 0x21207
...
[ 1.030670] [drm:intel_dump_pipe_config], DPLL = 0x0
[ 1.030672] [drm:intel_dump_pipe_config], DPLL_MD = 0x0
[ 1.030674] [drm:intel_dump_pipe_config], FP0 = 0x0
[ 1.030676] [drm:intel_dump_pipe_config], FP1 = 0x0
...
[ 1.132925] [drm:intel_dump_pipe_config], DPLL = 0x0
[ 1.132927] [drm:intel_dump_pipe_config], DPLL_MD = 0x0
[ 1.132928] [drm:intel_dump_pipe_config], FP0 = 0x0
[ 1.132929] [drm:intel_dump_pipe_config], FP1 = 0x0
...
[ 1.691202] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock (expected 108000, found 48000)
[ 1.691203] ------------[ cut here ]------------
[ 1.691214] WARNING: CPU: 0 PID: 1 at /home/Projects/Linux-git/drivers/gpu/drm/i915/intel_display.c:9288 check_crtc_state+0x6eb/0xe60()
[ 1.691215] pipe state doesn't match!
[ 1.691217] Modules linked in:
...
[ 1.691488] [drm:intel_dump_pipe_config], DPLL = 0x90020000
[ 1.691489] [drm:intel_dump_pipe_config], DPLL_MD = 0x0
[ 1.691491] [drm:intel_dump_pipe_config], FP0 = 0x3170d
[ 1.691492] [drm:intel_dump_pipe_config], FP1 = 0x3170d
...
[ 1.691528] [drm:intel_dump_pipe_config], DPLL = 0x90020000
[ 1.691530] [drm:intel_dump_pipe_config], DPLL_MD = 0x0
[ 1.691531] [drm:intel_dump_pipe_config], FP0 = 0x3170d
[ 1.691532] [drm:intel_dump_pipe_config], FP1 = 0x3170d
...
[ 1.803189] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 1.805213] i915 0000:00:02.0: registered panic notifier
[ 1.807248] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
...
[ 53.589413] [drm:intel_dump_pipe_config], DPLL = 0x0
[ 53.589418] [drm:intel_dump_pipe_config], DPLL_MD = 0x0
[ 53.589424] [drm:intel_dump_pipe_config], FP0 = 0x0
[ 53.589429] [drm:intel_dump_pipe_config], FP1 = 0x0
...
[ 53.641132] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock (expected 108000, found 48000)
[ 53.641139] ------------[ cut here ]------------
[ 53.641165] WARNING: CPU: 0 PID: 2176 at /home/Projects/Linux-git/drivers/gpu/drm/i915/intel_display.c:9288 check_crtc_state+0x6eb/0xe60()
[ 53.641171] pipe state doesn't match!
...
[ 53.641710] [drm:intel_dump_pipe_config], DPLL = 0x90020000
[ 53.641716] [drm:intel_dump_pipe_config], DPLL_MD = 0x0
[ 53.641721] [drm:intel_dump_pipe_config], FP0 = 0x3170d
[ 53.641726] [drm:intel_dump_pipe_config], FP1 = 0x3170d
...
[ 53.641847] [drm:intel_dump_pipe_config], DPLL = 0x90020000
[ 53.641853] [drm:intel_dump_pipe_config], DPLL_MD = 0x0
[ 53.641858] [drm:intel_dump_pipe_config], FP0 = 0x3170d
[ 53.641863] [drm:intel_dump_pipe_config], FP1 = 0x3170d
...
[ 53.696988] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock (expected 108000, found 48000)
[ 53.696995] ------------[ cut here ]------------
[ 53.697012] WARNING: CPU: 0 PID: 2176 at /home/Projects/Linux-git/drivers/gpu/drm/i915/intel_display.c:9288 check_crtc_state+0x6eb/0xe60()
[ 53.697017] pipe state doesn't match!
...
Bruno
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prev parent reply other threads:[~2013-12-05 22:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-04 20:09 3.13-rc2, i855, [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.crtc_clock Bruno Prémont
2013-12-05 10:49 ` Ville Syrjälä
2013-12-05 22:13 ` Bruno Prémont [this message]
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