Created attachment 174661 [details] full dmesg On openSUSE, with 3.19.3-1-desktop, following occurs: [67369.864983] ------------[ cut here ]------------ [67369.865057] WARNING: CPU: 0 PID: 3109 at ../drivers/gpu/drm/i915/intel_display.c:7817 hsw_enable_pc8+0x588/0x630 [i915]() [67369.865059] SPLL enabled [67369.865061] Modules linked in: msr cpufreq_stats rfcomm nf_log_ipv6 xt_pkttype nf_log_ipv4 nf_log_common xt_LOG xt_limit iscsi_ibft iscsi_boot_sysfs af_packet ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables bnep ecb arc4 nls_iso8859_1 nls_cp437 vfat fat snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp coretemp dell_laptop ppdev kvm_intel dell_wmi sparse_keymap dcdbas kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel dm_mod aes_x86_64 lrw i8k gf128mul glue_helper uvcvideo iwlmvm [67369.865116] ablk_helper videobuf2_vmalloc cryptd mac80211 videobuf2_memops joydev videobuf2_core pcspkr v4l2_common i2c_i801 serio_raw btusb videodev lpc_ich mfd_core bluetooth iwlwifi cfg80211 parport_pc rfkill i2c_hid parport 8250_fintek wmi thermal 8250_dw i2c_designware_platform i2c_designware_core snd_hda_intel snd_hda_controller sdhci_pci battery ac snd_hda_codec snd_hwdep e1000e snd_pcm snd_timer snd ptp mei_me pps_core mei soundcore shpchp processor efivarfs uas usb_storage btrfs xor raid6_pq crc32c_intel i915 i2c_algo_bit drm_kms_helper xhci_pci drm xhci_hcd video sdhci_acpi sdhci mmc_core button sg [67369.865170] CPU: 0 PID: 3109 Comm: kworker/0:0 Not tainted 3.19.3-1-desktop #1 [67369.865173] Hardware name: Dell Inc. Latitude E7240/08YF01, BIOS A14 02/02/2015 [67369.865181] Workqueue: pm pm_runtime_work [67369.865184] 0000000000000000 ffffffffa0208a20 ffffffff81665a4c ffff8800a2283c28 [67369.865190] ffffffff81062431 ffff880212440000 ffff880212c91b80 ffff880212c91b90 [67369.865194] ffff880212c91800 0000000000000000 ffffffff810624aa ffffffffa0214cc8 [67369.865198] Call Trace: [67369.865217] [<ffffffff8100558c>] dump_trace+0x8c/0x340 [67369.865224] [<ffffffff810058e3>] show_stack_log_lvl+0xa3/0x190 [67369.865230] [<ffffffff81007041>] show_stack+0x21/0x50 [67369.865240] [<ffffffff81665a4c>] dump_stack+0x47/0x67 [67369.865251] [<ffffffff81062431>] warn_slowpath_common+0x81/0xb0 [67369.865258] [<ffffffff810624aa>] warn_slowpath_fmt+0x4a/0x50 [67369.865295] [<ffffffffa01b57a8>] hsw_enable_pc8+0x588/0x630 [i915] [67369.865318] [<ffffffffa014d042>] intel_suspend_complete+0xf2/0x6b0 [i915] [67369.865338] [<ffffffffa014d8b1>] intel_runtime_suspend+0xf1/0x220 [i915] [67369.865347] [<ffffffff813806bd>] pci_pm_runtime_suspend+0x5d/0x140 [67369.865355] [<ffffffff814670ed>] __rpm_callback+0x2d/0x70 [67369.865361] [<ffffffff8146714f>] rpm_callback+0x1f/0x80 [67369.865367] [<ffffffff8146763c>] rpm_suspend+0x10c/0x660 [67369.865373] [<ffffffff81468e8a>] pm_runtime_work+0x7a/0xd0 [67369.865381] [<ffffffff8107a012>] process_one_work+0x142/0x3f0 [67369.865388] [<ffffffff8107a3d4>] worker_thread+0x114/0x460 [67369.865395] [<ffffffff8107f551>] kthread+0xc1/0xe0 [67369.865403] [<ffffffff8166c298>] ret_from_fork+0x58/0x90 [67369.865408] ---[ end trace aff1bd92a71a97f4 ]--- Issue does not seem to be fatal, graphics seems to still work
This has nothing to do with the WiFi team.
We seem to have neglected this bug. Apologies. If the problem persists with latest kernels, please file a bug at the freedesktop.org bugzilla [1], referencing this bug. Thank you. [1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel