Bug 114771

Summary:	Output to HDMI crashes kernel - i915 on Dell XPS13 9350 (Skylake)
Product:	Drivers	Reporter:	Daniel (kdebugs)
Component:	Video(DRI - Intel)	Assignee:	intel-gfx-bugs (intel-gfx-bugs)
Status:	RESOLVED INVALID
Severity:	normal	CC:	intel-gfx-bugs
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	4.5.0	Subsystem:
Regression:	No	Bisected commit-id:

Description Daniel 2016-03-16 00:33:45 UTC

[  608.719410] ------------[ cut here ]------------
[  608.719502] WARNING: CPU: 0 PID: 908 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_pm.c:3553 skl_update_other_pipe_wm+0x16c/0x180 [i915]()
[  608.719509] WARN_ON(!wm_changed)
[  608.719514] Modules linked in:
[  608.719520]  rfcomm drbg ansi_cprng bnep snd_hda_codec_hdmi dell_laptop dcdbas i2c_designware_platform dell_wmi i2c_designware_core sparse_keymap dell_led nls_iso8859_1 snd_soc_skl snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_soc_sst_match snd_soc_core cdc_ether snd_compress usbnet ac97_bus snd_hda_codec_realtek r8152 snd_hda_codec_generic snd_pcm_dmaengine mii intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel dw_dmac_core kvm snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep irqbypass crct10dif_pclmul crc32_pclmul snd_pcm brcmfmac ghash_clmulni_intel aesni_intel brcmutil snd_seq_midi snd_seq_midi_event aes_x86_64 cfg80211 lrw snd_rawmidi rtsx_pci_ms memstick gf128mul snd_seq glue_helper ablk_helper cryptd snd_seq_device snd_timer uvcvideo input_leds joydev
[  608.719633]  videobuf2_vmalloc videobuf2_memops serio_raw videobuf2_v4l2 videobuf2_core snd videodev hid_multitouch btusb btrtl media soundcore shpchp mei_me idma64 virt_dma mei processor_thermal_device intel_lpss_pci intel_soc_dts_iosf hci_uart btbcm btqca btintel bluetooth int3400_thermal intel_lpss_acpi acpi_thermal_rel intel_lpss acpi_als int3403_thermal int340x_thermal_zone kfifo_buf acpi_pad mac_hid industrialio parport_pc ppdev lp parport autofs4 hid_generic usbhid rtsx_pci_sdmmc i915 psmouse nvme i2c_algo_bit rtsx_pci drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ahci drm libahci wmi i2c_hid hid pinctrl_sunrisepoint video pinctrl_intel fjes
[  608.719755] CPU: 0 PID: 908 Comm: Xorg Tainted: G     U  W       4.5.0-040500-generic #201603140130
[  608.719760] Hardware name: Dell Inc. XPS 13 9350/0VM5NC, BIOS 1.2.3 01/08/2016
[  608.719766]  0000000000000286 0000000033c25cd0 ffff88046d1239a8 ffffffff813e0233
[  608.719777]  ffff88046d1239f0 ffffffffc027b838 ffff88046d1239e0 ffffffff81080e72
[  608.719785]  ffff880075f2e000 ffff880467789bd4 ffff880075f2d000 ffff880467f5cba8
[  608.719794] Call Trace:
[  608.719810]  [<ffffffff813e0233>] dump_stack+0x63/0x90
[  608.719823]  [<ffffffff81080e72>] warn_slowpath_common+0x82/0xc0
[  608.719832]  [<ffffffff81080f0c>] warn_slowpath_fmt+0x5c/0x80
[  608.719905]  [<ffffffffc01b366c>] skl_update_other_pipe_wm+0x16c/0x180 [i915]
[  608.719968]  [<ffffffffc01b3805>] skl_update_wm+0x185/0x640 [i915]
[  608.720062]  [<ffffffffc023ad00>] ? intel_ddi_post_disable+0x120/0x1e0 [i915]
[  608.720072]  [<ffffffff818213f2>] ? mutex_lock+0x12/0x30
[  608.720161]  [<ffffffffc022a455>] ? intel_fbc_disable_crtc+0x45/0xb0 [i915]
[  608.720222]  [<ffffffffc01b71de>] intel_update_watermarks+0x1e/0x30 [i915]
[  608.720309]  [<ffffffffc021e41c>] intel_atomic_commit+0x3dc/0xb30 [i915]
[  608.720378]  [<ffffffffc00b8761>] ? drm_atomic_check_only+0x181/0x600 [drm]
[  608.720435]  [<ffffffffc00b7f7f>] ? drm_atomic_set_crtc_for_connector+0x2f/0xe0 [drm]
[  608.720487]  [<ffffffffc00b8c17>] drm_atomic_commit+0x37/0x60 [drm]
[  608.720517]  [<ffffffffc0120bb6>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper]
[  608.720569]  [<ffffffffc00b789a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm]
[  608.720621]  [<ffffffffc00a7c32>] drm_mode_set_config_internal+0x62/0x100 [drm]
[  608.720672]  [<ffffffffc00ac5b0>] drm_mode_setcrtc+0x3e0/0x500 [drm]
[  608.720710]  [<ffffffffc009d812>] drm_ioctl+0x152/0x540 [drm]
[  608.720756]  [<ffffffffc00ac1d0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
[  608.720771]  [<ffffffff81214707>] ? __vfs_write+0x37/0x120
[  608.720781]  [<ffffffff81228bd1>] do_vfs_ioctl+0xa1/0x5b0
[  608.720789]  [<ffffffff812178e1>] ? __sb_end_write+0x21/0x30
[  608.720799]  [<ffffffff812150ed>] ? vfs_write+0x15d/0x1a0
[  608.720807]  [<ffffffff81229159>] SyS_ioctl+0x79/0x90
[  608.720815]  [<ffffffff8122b2b1>] ? SyS_poll+0x71/0x130
[  608.720826]  [<ffffffff818235f6>] entry_SYSCALL_64_fastpath+0x16/0x75
[  608.720832] ---[ end trace 90a1d475b0fe2a37 ]---

Comment 1 Jani Nikula 2016-03-16 09:44:13 UTC

Please file new drm/i915 bug reports to the freedesktop.org bugzilla:
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel

Additionally, that's not a crash, that's a warning. There's probably an existing bug over at freedesktop.org.

Comment 2 Daniel 2016-03-16 09:59:25 UTC

OK< anyway, HDMI oiutput doe snot work with any resolutions above 1440x900