[Bug 93892] Screen flickering

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Mar 23 18:41:19 UTC 2016 

https://bugs.freedesktop.org/show_bug.cgi?id=93892

--- Comment #12 from Adam Pigg <adam at piggz.co.uk> ---
Reported downstream at https://bugzilla.opensuse.org/show_bug.cgi?id=972206

4.4.3 seems ok, 4.5 flickers.  Got this

[   11.594521] ------------[ cut here ]------------
[   11.594553] WARNING: CPU: 0 PID: 1655 at
../drivers/gpu/drm/i915/intel_uncore.c:599 hsw_unclaimed_reg_debug+0x69/0x90
[i915]()
[   11.594555] Unclaimed register detected after reading register 0x65f10
[   11.594556] Modules linked in: af_packet vboxpci(O) vboxnetadp(O)
vboxnetflt(O) vboxdrv(O) bnep nls_iso8859_1 nls_cp437 vfat fat
snd_hda_codec_hdmi rndis_host cdc_ether usbnet uvcvideo btusb videobuf2_vmalloc
videobuf2_memops btrtl btbcm videobuf2_v4l2 btintel videobuf2_core bluetooth
videodev msr snd_hda_codec_realtek snd_hda_codec_generic arc4 intel_rapl
x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel hp_wmi snd_hda_intel
sparse_keymap snd_hda_codec snd_hda_core kvm snd_hwdep irqbypass snd_pcm
crct10dif_pclmul crc32_pclmul crc32c_intel iwlmvm snd_timer mac80211
ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul snd glue_helper
ablk_helper cryptd iwlwifi rtsx_pci_ms pcspkr joydev cfg80211 soundcore
i2c_i801 rfkill r8169 memstick mii shpchp int3403_thermal hp_accel lis3lv02d
input_polldev
[   11.594618]  fjes hp_wireless wmi battery thermal tpm_crb int3400_thermal
acpi_thermal_rel mei_me mei acpi_pad processor_thermal_device
int340x_thermal_zone intel_soc_dts_iosf tpm_tis ac tpm rtsx_pci_sdmmc mmc_core
serio_raw rtsx_pci mfd_core i915 i2c_algo_bit drm_kms_helper syscopyarea
sysfillrect sysimgblt fb_sys_fops drm xhci_pci xhci_hcd usbcore usb_common
video button sg efivarfs
[   11.594634] CPU: 0 PID: 1655 Comm: pulseaudio Tainted: G           O   
4.5.0-1-default #1
[   11.594636] Hardware name: HP HP Pavilion Notebook/80A1, BIOS F.54
09/22/2015
[   11.594637]  0000000000000000 ffff880246abb7f8 ffffffff81395921
ffff880246abb840
[   11.594639]  ffffffffa027b790 ffff880246abb830 ffffffff8107d912
ffff8802682a0000
[   11.594640]  ffff8802682a0080 0000000000000000 0000000000000206
ffff8802682a0000
[   11.594642] Call Trace:
[   11.594650]  [<ffffffff8101b175>] try_stack_unwind+0x175/0x190
[   11.594655]  [<ffffffff8101a0c9>] dump_trace+0x69/0x3a0
[   11.594657]  [<ffffffff8101b1db>] show_trace_log_lvl+0x4b/0x60
[   11.594660]  [<ffffffff8101a50c>] show_stack_log_lvl+0x10c/0x180
[   11.594662]  [<ffffffff8101b275>] show_stack+0x25/0x50
[   11.594679]  [<ffffffff81395921>] dump_stack+0x63/0x82
[   11.594683]  [<ffffffff8107d912>] warn_slowpath_common+0x82/0xc0
[   11.594686]  [<ffffffff8107d99c>] warn_slowpath_fmt+0x4c/0x50
[   11.594703]  [<ffffffffa01f38e9>] hsw_unclaimed_reg_debug+0x69/0x90 [i915]
[   11.594726]  [<ffffffffa01fa9e9>] gen9_read32+0x119/0x340 [i915]
[   11.594752]  [<ffffffffa01ffccd>]
i915_audio_component_codec_wake_override+0x7d/0xb0 [i915]
[   11.594762]  [<ffffffffa08506df>] snd_hdac_set_codec_wakeup+0x3f/0xa0
[snd_hda_core]
[   11.594773]  [<ffffffffa06e74d8>] azx_runtime_resume+0x1a8/0x1d0
[snd_hda_intel]
[   11.594780]  [<ffffffff813e052b>] pci_pm_runtime_resume+0x7b/0xa0
[   11.594785]  [<ffffffff814e7a42>] __rpm_callback+0x32/0x70
[   11.594789]  [<ffffffff814e7aa4>] rpm_callback+0x24/0x80
[   11.594792]  [<ffffffff814e83fb>] rpm_resume+0x47b/0x690
[   11.594796]  [<ffffffff814e82d8>] rpm_resume+0x358/0x690
[   11.594800]  [<ffffffff814e948f>] __pm_runtime_resume+0x3f/0x60
[   11.594805]  [<ffffffffa084be33>] snd_hdac_power_up+0x13/0x20 [snd_hda_core]
[   11.594815]  [<ffffffffa0873932>] azx_pcm_open+0x1d2/0x3e0 [snd_hda_codec]
[   11.594823]  [<ffffffffa06cca09>] snd_pcm_open_substream+0x59/0x110
[snd_pcm]
[   11.594829]  [<ffffffffa06ccb68>] snd_pcm_open+0xa8/0x220 [snd_pcm]
[   11.594835]  [<ffffffffa06ccd27>] snd_pcm_capture_open+0x47/0x70 [snd_pcm]
[   11.594842]  [<ffffffffa03b8481>] snd_open+0xb1/0x180 [snd]
[   11.594846]  [<ffffffff8120f30f>] chrdev_open+0x9f/0x1c0
[   11.594850]  [<ffffffff8120829f>] do_dentry_open+0x1ff/0x2f0
[   11.594867]  [<ffffffff81209546>] vfs_open+0x56/0x60
[   11.594870]  [<ffffffff81218371>] path_openat+0x1b1/0x13a0
[   11.594873]  [<ffffffff8121ae4e>] do_filp_open+0x7e/0xe0
[   11.594877]  [<ffffffff8120989b>] do_sys_open+0x11b/0x1f0
[   11.594880]  [<ffffffff8120998e>] SyS_open+0x1e/0x20
[   11.594884]  [<ffffffff816cbff2>] entry_SYSCALL_64_fastpath+0x16/0x71
[   11.597086] DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x16/0x71

[   11.597090] Leftover inexact backtrace:

[   11.597094] ---[ end trace ddb82be2781f3856 ]---
[   11.861249] Bluetooth: RFCOMM TTY layer initialized
[   11.861258] Bluetooth: RFCOMM socket layer initialized
[   11.861263] Bluetooth: RFCOMM ver 1.11
[   16.184084] show_signal_msg: 18 callbacks suppressed
[   16.184089] xembedsniproxy[1644]: segfault at 2 ip 000000000040c28f sp
00007fff0026ca80 error 4 in xembedsniproxy[400000+13000]
[   24.664379] wlo1: authenticate with f4:9f:f3:64:f3:f4
[   24.672668] wlo1: send auth to f4:9f:f3:64:f3:f4 (try 1/3)
[   24.673551] wlo1: authenticated
[   24.677496] wlo1: associate with f4:9f:f3:64:f3:f4 (try 1/3)
[   24.678745] wlo1: RX AssocResp from f4:9f:f3:64:f3:f4 (capab=0x11 status=0
aid=1)
[   24.680034] wlo1: associated
[   24.745537] wlo1: Limiting TX power to 23 (23 - 0) dBm as advertised by
f4:9f:f3:64:f3:f4
[   71.795968] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe A FIFO underrun

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