Just experienced the bug. Now one external monitor is off out of two and I have FIFO underrun in dmesg:
[176800.326018] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun [176800.359505] [drm:pipe_config_mismatch [i915]] *ERROR* mismatch in pixel_rate (expected 148500, found 296999) [176800.359591] [drm:pipe_config_mismatch [i915]] *ERROR* mismatch in shared_dpll (expected 0000000055585ceb, found 0000000067839797) [176800.359667] [drm:pipe_config_mismatch [i915]] *ERROR* mismatch in dpll_hw_state.ctrl1 (expected 0x00000003, found 0x00000001) [176800.359742] [drm:pipe_config_mismatch [i915]] *ERROR* mismatch in base.adjusted_mode.crtc_clock (expected 148500, found 296999) [176800.359813] [drm:pipe_config_mismatch [i915]] *ERROR* mismatch in port_clock (expected 270000, found 540000) [176800.359816] ------------[ cut here ]------------ [176800.359817] pipe state doesn't match! [176800.359993] WARNING: CPU: 0 PID: 4800 at drivers/gpu/drm/i915/display/intel_display.c:13158 verify_crtc_state+0x2ad/0x300 [i915] [176800.359995] Modules linked in: binfmt_misc vhost_net vhost tap btrfs xor zstd_compress raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs rfcomm ccm xt_MASQUERADE xt_conntrack xt_CHECKSUM ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter bpfilter bridge stp llc cmac algif_hash algif_skcipher af_alg bnep nls_iso8859_1 snd_soc_skl_hda_dsp snd_hda_codec_hdmi snd_soc_hdac_hdmi snd_hda_codec_realtek snd_soc_dmic snd_hda_codec_generic x86_pkg_temp_thermal snd_sof_pci intel_powerclamp snd_sof_intel_hda_common snd_soc_hdac_hda coretemp snd_sof_intel_hda snd_sof_intel_byt mei_hdcp kvm_intel snd_sof_intel_ipc intel_rapl_msr snd_sof kvm snd_sof_xtensa_dsp snd_hda_ext_core snd_soc_acpi_intel_match crct10dif_pclmul snd_soc_acpi ghash_clmulni_intel snd_soc_core aesni_intel crypto_simd cryptd glue_helper snd_compress rapl ac97_bus [176800.360042] intel_cstate snd_pcm_dmaengine snd_hda_intel snd_intel_dspcfg snd_seq_midi serio_raw snd_hda_codec snd_usb_audio snd_seq_midi_event snd_hda_core cdc_ether iwlmvm usbnet thinkpad_acpi snd_usbmidi_lib snd_hwdep r8152 nvram ledtrig_audio mii mac80211 snd_rawmidi wmi_bmof snd_pcm intel_wmi_thunderbolt libarc4 snd_seq uvcvideo btusb iwlwifi snd_seq_device btrtl videobuf2_vmalloc btbcm videobuf2_memops btintel snd_timer videobuf2_v4l2 bluetooth joydev videobuf2_common input_leds videodev rtsx_pci_ms mei_me mc cfg80211 ecdh_generic nxp_nci_i2c memstick ecc mei nxp_nci snd nci processor_thermal_device intel_rapl_common nfc intel_soc_dts_iosf ucsi_acpi typec_ucsi typec soundcore int3403_thermal int340x_thermal_zone acpi_pad mac_hid intel_hid int3400_thermal sparse_keymap acpi_thermal_rel sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 zfs(PO) zunicode(PO) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) zlua(PO) hid_logitech_hidpp hid_logitech_dj hid_generic usbhid [176800.360095] hid rtsx_pci_sdmmc i915 crc32_pclmul i2c_algo_bit drm_kms_helper psmouse syscopyarea nvme e1000e sysfillrect sysimgblt thunderbolt fb_sys_fops intel_lpss_pci i2c_i801 intel_lpss nvme_core drm idma64 rtsx_pci virt_dma wmi pinctrl_cannonlake video pinctrl_intel [176800.360118] CPU: 0 PID: 4800 Comm: Xorg Tainted: P O 5.4.0-52-generic #57-Ubuntu [176800.360120] Hardware name: LENOVO 20S1S2H600/20S1S2H600, BIOS N2XET23W (1.13 ) 08/26/2020 [176800.360186] RIP: 0010:verify_crtc_state+0x2ad/0x300 [i915] [176800.360191] Code: b6 45 bf e9 8d fe ff ff 80 3d 65 76 10 00 00 0f b6 f0 48 c7 c7 48 8a 5f c0 75 32 e8 5d 87 d7 ff e9 1e fe ff ff e8 7e bd f7 cd <0f> 0b e9 1b ff ff ff e8 72 bd f7 cd 0f 0b e9 85 fe ff ff e8 66 bd [176800.360193] RSP: 0018:ffffb32055adfa40 EFLAGS: 00010286 [176800.360196] RAX: 0000000000000000 RBX: ffff983f570202b0 RCX: 0000000000000006 [176800.360198] RDX: 0000000000000007 RSI: 0000000000000092 RDI: ffff983f6d4178c0 [176800.360199] RBP: ffffb32055adfa88 R08: 0000000000002b29 R09: 0000000000000004 [176800.360201] R10: 0000000000000000 R11: 0000000000000001 R12: ffff983f5732a000 [176800.360203] R13: ffff983f570202b8 R14: ffff983f57020000 R15: ffff983f2e18d000 [176800.360206] FS: 00007f47ed9c8a80(0000) GS:ffff983f6d400000(0000) knlGS:0000000000000000 [176800.360208] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [176800.360210] CR2: 00007f59a3e9c000 CR3: 000000080f096004 CR4: 00000000003626f0 [176800.360211] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [176800.360213] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [176800.360214] Call Trace: [176800.360289] intel_atomic_commit_tail+0xa43/0x12e0 [i915] [176800.360357] intel_atomic_commit+0x284/0x2b0 [i915] [176800.360394] drm_atomic_commit+0x4a/0x50 [drm] [176800.360411] drm_atomic_helper_set_config+0x89/0xa0 [drm_kms_helper] [176800.360438] drm_mode_setcrtc+0x1cd/0x7a0 [drm] [176800.360467] ? drm_syncobj_array_free+0x44/0x50 [drm] [176800.360490] ? drm_mode_getcrtc+0x190/0x190 [drm] [176800.360511] drm_ioctl_kernel+0xae/0xf0 [drm] [176800.360532] drm_ioctl+0x234/0x3d0 [drm] [176800.360553] ? drm_mode_getcrtc+0x190/0x190 [drm] [176800.360560] do_vfs_ioctl+0x407/0x670 [176800.360565] ? recalc_sigpending+0x1c/0x60 [176800.360571] ? _copy_from_user+0x3e/0x60 [176800.360574] ksys_ioctl+0x67/0x90 [176800.360577] __x64_sys_ioctl+0x1a/0x20 [176800.360582] do_syscall_64+0x57/0x190 [176800.360589] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [176800.360591] RIP: 0033:0x7f47edd2850b [176800.360595] Code: 0f 1e fa 48 8b 05 85 39 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 55 39 0d 00 f7 d8 64 89 01 48 [176800.360597] RSP: 002b:00007ffc8184fd38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [176800.360600] RAX: ffffffffffffffda RBX: 00007ffc8184fd70 RCX: 00007f47edd2850b [176800.360602] RDX: 00007ffc8184fd70 RSI: 00000000c06864a2 RDI: 000000000000000c [176800.360603] RBP: 00000000c06864a2 R08: 0000000000000000 R09: 0000561e9fc16650 [176800.360605] R10: 0000000000000000 R11: 0000000000000246 R12: 0000561e9eb21300 [176800.360606] R13: 000000000000000c R14: 0000561e9e934860 R15: 0000000000000001 [176800.360611] ---[ end trace 86d37062033c9455 ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1901894 Title: One or more monitors turns off but system usable until monitor orientation change To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1901894/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
