Hi, Using drm-intel-nightly or drm-intel-next-fixes, I get a warning on boot in intel_pm.c skl_updatE_pipe_wm. p->pixel_rate == 0. This is with a new Skylake i7 6700K on an Asus Z170-DELUXE. The monitor is connected via the HDMI 2.0 port to a 1080p monitor with an HDMI-to-DVI cable. HDMI 2.0 is provided by the motherboard with an onboard DP to HDMI 2.0 adapter. Any idea why pixel_rate would be uninitialized? Thanks, Joe Yasi >From the syslog: [ 1.782469] [drm] Initialized drm 1.1.0 20060810 [ 1.807782] [drm] Memory usable by graphics device = 4096M [ 1.810838] [drm] VT-d active for gfx access [ 1.813784] [drm] Replacing VGA console driver [ 1.824170] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 1.827424] [drm] Driver supports precise vblank timestamp query. [ 1.836101] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem [ 1.882875] [drm] failed to retrieve link info, disabling eDP [ 1.886015] ------------[ cut here ]------------ [ 1.888895] WARNING: CPU: 0 PID: 172 at drivers/gpu/drm/i915/intel_pm.c:3326 skl_update_pipe_wm+0x7af/0x7c0 [i915]() [ 1.894879] WARN_ON(p->pixel_rate == 0) [ 1.894919] Modules linked in: [ 1.904040] bcache igb crc32c_intel hwmon psmouse dca e1000e(+) i915(+) ptp drm_kms_helper pps_core syscopyarea i2c_algo_bit sysfillrect sysimgblt fb_sys_fops drm i2c_core sr_mod intel_gtt cdrom sg agpgart fan thermal video button [ 1.907216] CPU: 0 PID: 172 Comm: systemd-udevd Not tainted 4.2.0-drmintelnightly-customhwl #1 [ 1.910529] Hardware name: System manufacturer System Product Name/Z170-DELUXE, BIOS 0801 08/21/2015 [ 1.913669] 0000000000000000 ffffffffc01e1560 ffffffff815a353d ffff88045eb73568 [ 1.917006] ffffffff81046de7 0000000000000000 ffff88045e5497de 0000000000000002 [ 1.920158] ffff88045eb73856 ffff88045eb73730 ffffffff81046e65 ffffffffc01f1aa0 [ 1.923290] Call Trace: [ 1.926404] [<ffffffff815a353d>] ? dump_stack+0x47/0x67 [ 1.929552] [<ffffffff81046de7>] ? warn_slowpath_common+0x77/0xb0 [ 1.932770] [<ffffffff81046e65>] ? warn_slowpath_fmt+0x45/0x50 [ 1.935902] [<ffffffff81337e69>] ? idr_get_empty_slot+0x189/0x380 [ 1.939046] [<ffffffffc012ff5f>] ? skl_update_pipe_wm+0x7af/0x7c0 [i915] [ 1.942195] [<ffffffffc01303ab>] ? skl_update_wm+0x10b/0x610 [i915] [ 1.945316] [<ffffffff810dd73f>] ? __alloc_pages_nodemask+0x10f/0x7a0 [ 1.948501] [<ffffffff8133f3a6>] ? string.isra.4+0x36/0xc0 [ 1.951850] [<ffffffffc019a8b2>] ? skl_disable_plane+0xb2/0xd0 [i915] [ 1.954991] [<ffffffffc018f1df>] ? intel_modeset_setup_hw_state+0x89f/0xcf0 [i915] [ 1.958091] [<ffffffffc008ba7e>] ? drm_modeset_lock_all_crtcs+0x8e/0xa0 [drm] [ 1.961121] [<ffffffffc0191153>] ? intel_modeset_init+0xad3/0x1990 [i915] [ 1.964130] [<ffffffffc0121d87>] ? gen8_irq_postinstall+0x267/0x320 [i915] [ 1.967126] [<ffffffffc01c6be9>] ? i915_driver_load+0xed9/0x14f0 [i915] [ 1.970119] [<ffffffff815293cf>] ? netlink_broadcast_filtered+0x12f/0x3b0 [ 1.973087] [<ffffffff81339980>] ? cleanup_uevent_env+0x10/0x10 [ 1.976029] [<ffffffff81339c86>] ? kobject_uevent_env+0xf6/0x520 [ 1.978935] [<ffffffff8159e4ef>] ? klist_add_tail+0x1f/0x50 [ 1.981808] [<ffffffff81400da4>] ? device_add+0x204/0x5a0 [ 1.984709] [<ffffffffc0077607>] ? drm_dev_register+0x97/0xa0 [drm] [ 1.987566] [<ffffffffc0079f94>] ? drm_get_pci_dev+0x84/0x1d0 [drm] [ 1.990425] [<ffffffff8140c497>] ? __pm_runtime_resume+0x47/0x60 [ 1.993249] [<ffffffff8136daaf>] ? pci_device_probe+0x6f/0xc0 [ 1.996069] [<ffffffff8140388f>] ? driver_probe_device+0x12f/0x2d0 [ 1.998891] [<ffffffff81403aa6>] ? __driver_attach+0x76/0x80 [ 2.001701] [<ffffffff81403a30>] ? driver_probe_device+0x2d0/0x2d0 [ 2.004487] [<ffffffff81401b95>] ? bus_for_each_dev+0x55/0x90 [ 2.007259] [<ffffffff814030aa>] ? bus_add_driver+0x1aa/0x220 [ 2.010013] [<ffffffffc0215000>] ? 0xffffffffc0215000 [ 2.012779] [<ffffffff8140424a>] ? driver_register+0x5a/0xe0 [ 2.015565] [<ffffffff810002d0>] ? do_one_initcall+0x90/0x1e0 [ 2.018337] [<ffffffff815a1888>] ? do_init_module+0x50/0x1d6 [ 2.021091] [<ffffffff810aaf1a>] ? load_module+0x1c9a/0x20c0 [ 2.023829] [<ffffffff810a8020>] ? __symbol_put+0x50/0x50 [ 2.026535] [<ffffffff81100f5a>] ? do_mmap_pgoff+0x2fa/0x3e0 [ 2.029218] [<ffffffff810ab4a6>] ? SyS_finit_module+0x66/0x70 [ 2.031893] [<ffffffff815a8e9b>] ? entry_SYSCALL_64_fastpath+0x16/0x6e [ 2.034630] ---[ end trace 310cfca5c3452d55 ]--- [ 2.037318] [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0! [ 2.061573] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) [ 2.088374] fbcon: inteldrmfb (fb1) is primary device [ 2.088374] fbcon: Remapping primary device, fb1, to tty 1-63 [ 2.324985] i915 0000:00:02.0: fb1: inteldrmfb frame buffer device [ 3.744558] [drm] RC6 on _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
