<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - WARN intel_ddi.c:772 intel_ddi_get_crtc_new_encoder(): 2 encoders on crtc for pipe A"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93192">93192</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>WARN intel_ddi.c:772 intel_ddi_get_crtc_new_encoder(): 2 encoders on crtc for pipe A
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>[ 4.204507] ------------[ cut here ]------------
[ 4.204514] WARNING: CPU: 1 PID: 1361 at
drivers/gpu/drm/i915/intel_ddi.c:772 intel_ddi_get_crtc_new_encoder+0x8c/0x90()
[ 4.204515] 2 encoders on crtc for pipe A
[ 4.204516] Modules linked in: arc4 iwlmvm mac80211 snd_hda_codec_realtek
snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_intel snd_hda_codec
snd_hda_core snd_pcm snd_hwdep snd_seq_midi snd_seq_midi_event
x86_pkg_temp_thermal intel_powerclamp coretemp snd_rawmidi kvm_intel cmac kvm
iwlwifi snd_seq irqbypass dm_multipath crct10dif_pclmul btusb crc32_pclmul
cfg80211 snd_timer btrtl snd_seq_device btbcm mei_me btintel mei rfcomm
aesni_intel bnep bluetooth snd aes_x86_64 glue_helper lrw gf128mul shpchp
ablk_helper lpc_ich cryptd serio_raw nuvoton_cir soundcore rc_core binfmt_misc
i2c_hid dw_dmac hid dw_dmac_core i2c_designware_platform spi_pxa2xx_platform
8250_dw i2c_designware_core parport_pc nls_iso8859_1 acpi_pad mac_hid ppdev lp
parport dm_mirror dm_region_hash dm_log usb_storage e1000e psmouse ptp ahci
libahci pps_core sdhci_acpi sdhci
[ 4.204554] CPU: 1 PID: 1361 Comm: Xorg Not tainted 4.4.0-rc3+ #75
[ 4.204555] Hardware name:
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff/NUC5i5RYB,
BIOS RYBDWi35.86A.0137.2015.0107.1700 01/07/2015
[ 4.204556] ffffffff81d43550 ffff88040b1ef938 ffffffff813937ad
ffff88040b1ef980
[ 4.204558] ffff88040b1ef970 ffffffff81076196 ffff88040a141f00
ffff880409383c00
[ 4.204559] ffff88040b6ca400 ffff88040c2ca800 ffff88040a141f00
ffff88040b1ef9d0
[ 4.204561] Call Trace:
[ 4.204565] [<ffffffff813937ad>] dump_stack+0x44/0x57
[ 4.204568] [<ffffffff81076196>] warn_slowpath_common+0x86/0xc0
[ 4.204569] [<ffffffff8107621c>] warn_slowpath_fmt+0x4c/0x50
[ 4.204571] [<ffffffff8158277c>] intel_ddi_get_crtc_new_encoder+0x8c/0x90
[ 4.204573] [<ffffffff81582dc5>] intel_ddi_pll_select+0x35/0x1460
[ 4.204576] [<ffffffff8182456a>] ? __ww_mutex_lock_slowpath+0x16e/0x184
[ 4.204578] [<ffffffff8156cf5d>] ?
intel_plane_atomic_calc_changes+0x4d/0x790
[ 4.204580] [<ffffffff814e88cf>] ? drm_rect_clip_scaled+0x10f/0x120
[ 4.204583] [<ffffffff814c35e8>] ? drm_plane_helper_check_update+0xa8/0x1e0
[ 4.204585] [<ffffffff815565c2>] haswell_crtc_compute_clock+0x12/0x30
[ 4.204587] [<ffffffff81562a55>] intel_crtc_atomic_check+0x195/0x220
[ 4.204589] [<ffffffff814c9e71>] drm_atomic_helper_check_planes+0x121/0x1d0
[ 4.204590] [<ffffffff81566586>] intel_atomic_check+0x2d6/0x2040
[ 4.204593] [<ffffffff811c73cb>] ? kmem_cache_alloc_trace+0x17b/0x1e0
[ 4.204595] [<ffffffff814c9923>] ?
drm_atomic_helper_connector_duplicate_state+0x33/0x80
[ 4.204596] [<ffffffff814ea001>] ? drm_atomic_get_crtc_state+0x11/0xd0
[ 4.204598] [<ffffffff814ead28>] drm_atomic_check_only+0x158/0x580
[ 4.204600] [<ffffffff814ea520>] ?
drm_atomic_set_crtc_for_connector+0x20/0x90
[ 4.204601] [<ffffffff814eb167>] drm_atomic_commit+0x17/0x60
[ 4.204603] [<ffffffff814cbce7>] drm_atomic_helper_set_config+0x77/0xb0
[ 4.204605] [<ffffffff814da974>] drm_mode_set_config_internal+0x64/0x100
[ 4.204607] [<ffffffff814de8bd>] drm_mode_setcrtc+0xdd/0x4f0
[ 4.204609] [<ffffffff814d0f4b>] drm_ioctl+0x23b/0x4d0
[ 4.204611] [<ffffffff810686d3>] ? pte_alloc_one+0x33/0x40
[ 4.204613] [<ffffffff814de7e0>] ? drm_mode_setplane+0x1c0/0x1c0
[ 4.204615] [<ffffffff811f955d>] do_vfs_ioctl+0x2cd/0x4b0
[ 4.204617] [<ffffffff810826b2>] ? __set_task_blocked+0x32/0x70
[ 4.204618] [<ffffffff81084d06>] ? __set_current_blocked+0x36/0x60
[ 4.204620] [<ffffffff811f97b9>] SyS_ioctl+0x79/0x90
[ 4.204621] [<ffffffff81084f76>] ? SyS_rt_sigprocmask+0x86/0xb0
[ 4.204623] [<ffffffff81826976>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 4.204624] ---[ end trace 7f16c2693ffe8623 ]---
[ 4.305982] ------------[ cut here ]------------
[ 4.305992] WARNING: CPU: 0 PID: 1361 at
drivers/gpu/drm/i915/intel_display.c:6456 intel_atomic_commit+0x9e6/0x22f0()
[ 4.305993] attached crtc is active, but connector isn't
[ 4.305995] Modules linked in: arc4 iwlmvm mac80211 snd_hda_codec_realtek
snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_intel snd_hda_codec
snd_hda_core snd_pcm snd_hwdep snd_seq_midi snd_seq_midi_event
x86_pkg_temp_thermal intel_powerclamp coretemp snd_rawmidi kvm_intel cmac kvm
iwlwifi snd_seq irqbypass dm_multipath crct10dif_pclmul btusb crc32_pclmul
cfg80211 snd_timer btrtl snd_seq_device btbcm mei_me btintel mei rfcomm
aesni_intel bnep bluetooth snd aes_x86_64 glue_helper lrw gf128mul shpchp
ablk_helper lpc_ich cryptd serio_raw nuvoton_cir soundcore rc_core binfmt_misc
i2c_hid dw_dmac hid dw_dmac_core i2c_designware_platform spi_pxa2xx_platform
8250_dw i2c_designware_core parport_pc nls_iso8859_1 acpi_pad mac_hid ppdev lp
parport dm_mirror dm_region_hash dm_log usb_storage e1000e psmouse ptp ahci
libahci pps_core sdhci_acpi sdhci
[ 4.306048] CPU: 0 PID: 1361 Comm: Xorg Tainted: G W 4.4.0-rc3+
#75
[ 4.306049] Hardware name:
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff/NUC5i5RYB,
BIOS RYBDWi35.86A.0137.2015.0107.1700 01/07/2015
[ 4.306051] ffffffff81d3e018 ffff88040b1efaf8 ffffffff813937ad
ffff88040b1efb40
[ 4.306054] ffff88040b1efb30 ffffffff81076196 ffff8800d9479000
ffff8804097bc200
[ 4.306057] ffff880409978000 0000000000000004 ffff88040b6ca400
ffff88040b1efb90
[ 4.306060] Call Trace:
[ 4.306065] [<ffffffff813937ad>] dump_stack+0x44/0x57
[ 4.306068] [<ffffffff81076196>] warn_slowpath_common+0x86/0xc0
[ 4.306070] [<ffffffff8107621c>] warn_slowpath_fmt+0x4c/0x50
[ 4.306073] [<ffffffff81563df6>] intel_atomic_commit+0x9e6/0x22f0
[ 4.306077] [<ffffffff811c73cb>] ? kmem_cache_alloc_trace+0x17b/0x1e0
[ 4.306081] [<ffffffff814c9923>] ?
drm_atomic_helper_connector_duplicate_state+0x33/0x80
[ 4.306084] [<ffffffff814ead28>] ? drm_atomic_check_only+0x158/0x580
[ 4.306087] [<ffffffff814ea520>] ?
drm_atomic_set_crtc_for_connector+0x20/0x90
[ 4.306090] [<ffffffff814eb187>] drm_atomic_commit+0x37/0x60
[ 4.306092] [<ffffffff814cbce7>] drm_atomic_helper_set_config+0x77/0xb0
[ 4.306096] [<ffffffff814da974>] drm_mode_set_config_internal+0x64/0x100
[ 4.306098] [<ffffffff814de8bd>] drm_mode_setcrtc+0xdd/0x4f0
[ 4.306102] [<ffffffff814d0f4b>] drm_ioctl+0x23b/0x4d0
[ 4.306105] [<ffffffff810686d3>] ? pte_alloc_one+0x33/0x40
[ 4.306108] [<ffffffff814de7e0>] ? drm_mode_setplane+0x1c0/0x1c0
[ 4.306111] [<ffffffff811f955d>] do_vfs_ioctl+0x2cd/0x4b0
[ 4.306114] [<ffffffff810826b2>] ? __set_task_blocked+0x32/0x70
[ 4.306116] [<ffffffff81084d06>] ? __set_current_blocked+0x36/0x60
[ 4.306119] [<ffffffff811f97b9>] SyS_ioctl+0x79/0x90
[ 4.306121] [<ffffffff81084f76>] ? SyS_rt_sigprocmask+0x86/0xb0
[ 4.306124] [<ffffffff81826976>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 4.306126] ---[ end trace 7f16c2693ffe8624 ]---
[ 4.890947] ------------[ cut here ]------------
[ 4.890957] WARNING: CPU: 3 PID: 1361 at
drivers/gpu/drm/drm_atomic_helper.c:682
drm_atomic_helper_update_legacy_modeset_state+0x22b/0x250()
[ 4.890959] Modules linked in: arc4 iwlmvm mac80211 snd_hda_codec_realtek
snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_intel snd_hda_codec
snd_hda_core snd_pcm snd_hwdep snd_seq_midi snd_seq_midi_event
x86_pkg_temp_thermal intel_powerclamp coretemp snd_rawmidi kvm_intel cmac kvm
iwlwifi snd_seq irqbypass dm_multipath crct10dif_pclmul btusb crc32_pclmul
cfg80211 snd_timer btrtl snd_seq_device btbcm mei_me btintel mei rfcomm
aesni_intel bnep bluetooth snd aes_x86_64 glue_helper lrw gf128mul shpchp
ablk_helper lpc_ich cryptd serio_raw nuvoton_cir soundcore rc_core binfmt_misc
i2c_hid dw_dmac hid dw_dmac_core i2c_designware_platform spi_pxa2xx_platform
8250_dw i2c_designware_core parport_pc nls_iso8859_1 acpi_pad mac_hid ppdev lp
parport dm_mirror dm_region_hash dm_log usb_storage e1000e psmouse ptp ahci
libahci pps_core sdhci_acpi sdhci
[ 4.891012] CPU: 3 PID: 1361 Comm: Xorg Tainted: G W 4.4.0-rc3+
#75
[ 4.891014] Hardware name:
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff/NUC5i5RYB,
BIOS RYBDWi35.86A.0137.2015.0107.1700 01/07/2015
[ 4.891016] ffffffff81d340e8 ffff88040b1efb10 ffffffff813937ad
0000000000000000
[ 4.891019] ffff88040b1efb48 ffffffff81076196 ffff88040b1bea00
ffff8800d9479000
[ 4.891021] 0000000000000004 ffff88040c2ca800 ffff880405505f60
ffff88040b1efb58
[ 4.891024] Call Trace:
[ 4.891029] [<ffffffff813937ad>] dump_stack+0x44/0x57
[ 4.891032] [<ffffffff81076196>] warn_slowpath_common+0x86/0xc0
[ 4.891035] [<ffffffff8107628a>] warn_slowpath_null+0x1a/0x20
[ 4.891038] [<ffffffff814c922b>]
drm_atomic_helper_update_legacy_modeset_state+0x22b/0x250
[ 4.891041] [<ffffffff81563c08>] intel_atomic_commit+0x7f8/0x22f0
[ 4.891046] [<ffffffff818245df>] ? __ww_mutex_lock+0x5f/0x97
[ 4.891049] [<ffffffff814e9901>] ? modeset_backoff+0x101/0x120
[ 4.891052] [<ffffffff814ead28>] ? drm_atomic_check_only+0x158/0x580
[ 4.891055] [<ffffffff814ea520>] ?
drm_atomic_set_crtc_for_connector+0x20/0x90
[ 4.891058] [<ffffffff814eb187>] drm_atomic_commit+0x37/0x60
[ 4.891061] [<ffffffff814cbce7>] drm_atomic_helper_set_config+0x77/0xb0
[ 4.891064] [<ffffffff814da974>] drm_mode_set_config_internal+0x64/0x100
[ 4.891067] [<ffffffff814de8bd>] drm_mode_setcrtc+0xdd/0x4f0
[ 4.891070] [<ffffffff814d0f4b>] drm_ioctl+0x23b/0x4d0
[ 4.891073] [<ffffffff814de7e0>] ? drm_mode_setplane+0x1c0/0x1c0
[ 4.891077] [<ffffffff811f955d>] do_vfs_ioctl+0x2cd/0x4b0
[ 4.891080] [<ffffffff810826b2>] ? __set_task_blocked+0x32/0x70
[ 4.891082] [<ffffffff811e8e81>] ? __sb_end_write+0x21/0x30
[ 4.891085] [<ffffffff81084d06>] ? __set_current_blocked+0x36/0x60
[ 4.891087] [<ffffffff811f97b9>] SyS_ioctl+0x79/0x90
[ 4.891090] [<ffffffff81826976>] entry_SYSCALL_64_fastpath+0x16/0x75
[ 4.891092] ---[ end trace 7f16c2693ffe8625 ]---</pre>
</div>
</p>
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