[Intel-gfx] [Eaglelake][i915] pipe state doesn't match

[Felix Miata]

I suspect this might be at root in these threads:
https://lists.freedesktop.org/archives/intel-gfx/2016-March/089805.html
https://lists.freedesktop.org/archives/intel-gfx/2016-June/097652.html

Felix Miata composed on 2016-07-15 05:43 (UTC-0400):

> I looked for a match on https://bugs.freedesktop.org/query.cgi but found
> nothing looking like a close match that hadn't been marked fixed or
> duplicate.

> This is happening on a Dell Optiplex 780 in every openSUSE boot at least
> as far back as kernel 3.16 in v13.2, but is not evident in v13.1 running
> 3.12.59. It's also evident in Knoppix 7.6.1 & kernel 4.2.6. This is full
> dmesg from Tumbleweed's kernel 4.6.3, vaapi-intel-driver-1.7.0 and
> libdrm2-2.4.68/libdrm_intel1-2.4.68, with the following cmdline:
> audit=0 ipv6.disable=1 net.ifnames=0 noresume splash=0 vga=791 video=1024x768 at 60 video=1440x900 at 60 3
> http://fm.no-ip.com/Tmp/SUSE/Factory/dmsg-gx780-tw20160710-k4631.txt

> Dmesg excerpt:
> [   11.571101] [drm:intel_pipe_config_compare [i915]] *ERROR* mismatch in has_audio (expected 1, found 0)
> [   11.571102] ------------[ cut here ]------------
> [   11.571128] WARNING: CPU: 0 PID: 71 at ../drivers/gpu/drm/i915/intel_display.c:12921 intel_modeset_check_state+0x6b6/0x840 [i915]
> [   11.571129] pipe state doesn't match!
> [   11.571149] Modules linked in: snd_hda_core snd_hwdep mei_wdt snd_pcm i915 snd_timer drm_kms_helper dm_mod snd mei_me drm e1000e fb_sys_fops mei coretemp kvm_intel kvm dell_wmi ptp sparse_keymap acpi_cpufreq dell_smbios video ppdev tpm_tis syscopyarea button iTCO_wdt tpm shpchp parport_pc gpio_ich sysfillrect dcdbas parport wmi iTCO_vendor_support sysimgblt pps_core i2c_i801 floppy(+) lpc_ich mfd_core irqbypass soundcore i2c_algo_bit 8250_fintek pcspkr hid_generic usbhid uhci_hcd ehci_pci ehci_hcd serio_raw sr_mod cdrom usbcore usb_common ata_generic sg
> [   11.571151] CPU: 0 PID: 71 Comm: kworker/u16:6 Not tainted 4.6.3-1-default #1
> [   11.571152] Hardware name: Dell Inc. OptiPlex 780                 /03NVJ6, BIOS A14 08/21/2012
> [   11.571155] Workqueue: events_unbound async_run_entry_fn
> [   11.571157]  0000000000000000 ffffffff8138a6f4 ffff8800d7b83988 0000000000000000
> [   11.571158]  ffffffff8107b10e ffff8800d4f7b800 ffff8800d7b839d8 ffff880112574000
> [   11.571159]  ffff880112a00c00 ffff8800d3734400 ffff8800d7b24000 ffffffff8107b17f
> [   11.571160] Call Trace:
> [   11.571168]  [<ffffffff8102eece>] dump_trace+0x5e/0x300
> [   11.571171]  [<ffffffff8102f27c>] show_stack_log_lvl+0x10c/0x180
> [   11.571173]  [<ffffffff8102ffa1>] show_stack+0x21/0x40
> [   11.571175]  [<ffffffff8138a6f4>] dump_stack+0x5c/0x78
> [   11.571178]  [<ffffffff8107b10e>] __warn+0xbe/0xe0
> [   11.571180]  [<ffffffff8107b17f>] warn_slowpath_fmt+0x4f/0x60
> [   11.571206]  [<ffffffffa0461236>] intel_modeset_check_state+0x6b6/0x840 [i915]
> [   11.571240]  [<ffffffffa046c2a2>] intel_atomic_commit+0x832/0xc50 [i915]
> [   11.571252]  [<ffffffffa03d586c>] restore_fbdev_mode+0x22c/0x260 [drm_kms_helper]
> [   11.571261]  [<ffffffffa03d790e>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2e/0x70 [drm_kms_helper]
> [   11.571267]  [<ffffffffa03d7979>] drm_fb_helper_set_par+0x29/0x50 [drm_kms_helper]
> [   11.571293]  [<ffffffffa0481376>] intel_fbdev_set_par+0x16/0x60 [i915]
> [   11.571297]  [<ffffffff813f9f43>] fbcon_init+0x563/0x5f0
> [   11.571301]  [<ffffffff81485f73>] visual_init+0xc3/0x120
> [   11.571303]  [<ffffffff8148770f>] do_bind_con_driver+0x1cf/0x3b0
> [   11.571305]  [<ffffffff81487c5e>] do_take_over_console+0x14e/0x1c0
> [   11.571308]  [<ffffffff813f5f88>] do_fbcon_takeover+0x58/0xb0
> [   11.571311]  [<ffffffff8109a525>] notifier_call_chain+0x45/0x70
> [   11.571313]  [<ffffffff8109a871>] __blocking_notifier_call_chain+0x41/0x60
> [   11.571315]  [<ffffffff81401cc2>] register_framebuffer+0x202/0x330
> [   11.571322]  [<ffffffffa03d7c0c>] drm_fb_helper_initial_config+0x26c/0x420 [drm_kms_helper]
> [   11.571348]  [<ffffffffa0481eeb>] intel_fbdev_initial_config+0x1b/0x30 [i915]
> [   11.571350]  [<ffffffff8109be43>] async_run_entry_fn+0x43/0x140
> [   11.571352]  [<ffffffff810938ed>] process_one_work+0x1ed/0x4b0
> [   11.571354]  [<ffffffff81093bf7>] worker_thread+0x47/0x4c0
> [   11.571357]  [<ffffffff810997ed>] kthread+0xbd/0xe0
> [   11.571360]  [<ffffffff816b4062>] ret_from_fork+0x22/0x40
> [   11.572001] DWARF2 unwinder stuck at ret_from_fork+0x22/0x40
> [   11.572001] Leftover inexact backtrace:
> [   11.572001]  [<ffffffff81099730>] ? kthread_worker_fn+0x170/0x170
> [   11.572932] ---[ end trace a60da7830c1f6140 ]---
> [   11.653070] Console: switching to colour frame buffer device 180x56
-- 
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

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Felix Miata  ***  http://fm.no-ip.com/