[Kernel-packages] [Bug 1550779] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
I think this issue has been affecting me for a few years now but I just recently started to look into it. My current system is Ubuntu 19.04 but this issue was present even when I was using 18.04 and 18.10 and even before that. OS: Ubuntu 19.04 CPU: Intel Core i7 6700 Graphics (integrated only): HD Graphics 530 (Skylake GT2) Anyway, from time to time only one of my monitors turn on. When that happens `dmesg | grep i915` prints this: ``` ➜ ~ dmesg -e | grep i915 [ +0.000545] i915 :00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem [ +0.000627] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27) [ +0.003052] [drm] Initialized i915 1.6.0 20181204 for :00:02.0 on minor 0 [ +0.36] snd_hda_intel :00:1f.3: bound :00:02.0 (ops i915_audio_component_bind_ops [i915]) [ +0.47] i915 :00:02.0: fb0: inteldrmfb frame buffer device [ +0.249846] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun ➜ ~ dmesg -T | grep i915 [Sat Apr 27 17:47:08 2019] i915 :00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem [Sat Apr 27 17:47:08 2019] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27) [Sat Apr 27 17:47:09 2019] [drm] Initialized i915 1.6.0 20181204 for :00:02.0 on minor 0 [Sat Apr 27 17:47:09 2019] snd_hda_intel :00:1f.3: bound :00:02.0 (ops i915_audio_component_bind_ops [i915]) [Sat Apr 27 17:47:09 2019] i915 :00:02.0: fb0: inteldrmfb frame buffer device [Sat Apr 27 17:47:09 2019] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun ``` When I switch to Wayland, sometimes none of my monitors turn on at all. Once when both turned on, I turned off one and tried to turn it back on again, but it went into energy saving mode. Then `dmesg` was showing this: ``` ➜ ~ dmesg -T | grep i915 [Sat Apr 27 18:14:17 2019] i915 :00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem [Sat Apr 27 18:14:17 2019] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27) [Sat Apr 27 18:14:18 2019] [drm] Initialized i915 1.6.0 20181204 for :00:02.0 on minor 0 [Sat Apr 27 18:14:18 2019] snd_hda_intel :00:1f.3: bound :00:02.0 (ops i915_audio_component_bind_ops [i915]) [Sat Apr 27 18:14:18 2019] i915 :00:02.0: fb0: inteldrmfb frame buffer device [Sat Apr 27 18:14:56 2019] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun ➜ ~ dmesg -e | grep i915 [ +0.000664] i915 :00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem [ +0.000861] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27) [ +0.016298] [drm] Initialized i915 1.6.0 20181204 for :00:02.0 on minor 0 [ +0.47] snd_hda_intel :00:1f.3: bound :00:02.0 (ops i915_audio_component_bind_ops [i915]) [ +0.47] i915 :00:02.0: fb0: inteldrmfb frame buffer device [ +23.689059] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun ``` I have attached the complete dmesg output in case that might help. ** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1550779/+attachment/5259448/+files/dmesg.txt -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1550779 Title: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun Status in linux package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Incomplete Bug description: Upgraded linux-image-extra-4.2.0-30-generic I see graphic glitches, looks like the graphic buffer gets screwed up - funny repetition's patterns (back in time glitches) - black screen (<1sec) - graphic errors I can influence the severity of the issue with switching windows and using certain programs, e.g. Google Maps in chrome causes this issue reproducibly dmesg | grep i915 [2.726864] [drm] Initialized i915 1.6.0 20150522 for :00:02.0 on minor 0 [2.792005] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5 [3.471092] i915 :00:02.0: fb0: inteldrmfb frame buffer device [3.471093] i915 :00:02.0: registered panic notifier [9.573129] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [9.574847] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A [9.574895] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun linux-image-extra-4.2.0-27-generic works find ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-30.36-generic 4.2.8-ckt3 Uname: Linux 4.2.0-30-generic x86_64 .tmp.unity.support
[Kernel-packages] [Bug 1490349] Re: 15:10 and 16.04: bluetoothd reports "Not enough handles to register service" at start
This affects me too: $ journalctl | grep -i bluetooth Jul 16 16:58:40 machine kernel: Bluetooth: Core ver 2.21 Jul 16 16:58:40 machine kernel: Bluetooth: HCI device and connection manager initialized Jul 16 16:58:40 machine kernel: Bluetooth: HCI socket layer initialized Jul 16 16:58:40 machine kernel: Bluetooth: L2CAP socket layer initialized Jul 16 16:58:40 machine kernel: Bluetooth: SCO socket layer initialized Jul 16 16:58:40 machine kernel: Bluetooth: HCI UART driver ver 2.3 Jul 16 16:58:40 machine kernel: Bluetooth: HCI UART protocol H4 registered Jul 16 16:58:40 machine kernel: Bluetooth: HCI UART protocol BCSP registered Jul 16 16:58:40 machine kernel: Bluetooth: HCI UART protocol LL registered Jul 16 16:58:40 machine kernel: Bluetooth: HCI UART protocol ATH3K registered Jul 16 16:58:40 machine kernel: Bluetooth: HCI UART protocol Three-wire (H5) registered Jul 16 16:58:40 machine kernel: Bluetooth: HCI UART protocol Intel registered Jul 16 16:58:40 machine kernel: Bluetooth: HCI UART protocol BCM registered Jul 16 16:58:40 machine kernel: Bluetooth: HCI UART protocol QCA registered Jul 16 16:58:41 machine kernel: Bluetooth: hci0: Bootloader revision 0.0 build 2 week 52 2014 Jul 16 16:58:41 machine kernel: Bluetooth: hci0: Device revision is 5 Jul 16 16:58:41 machine kernel: Bluetooth: hci0: Secure boot is enabled Jul 16 16:58:41 machine kernel: Bluetooth: hci0: OTP lock is enabled Jul 16 16:58:41 machine kernel: Bluetooth: hci0: API lock is enabled Jul 16 16:58:41 machine kernel: Bluetooth: hci0: Debug lock is disabled Jul 16 16:58:41 machine kernel: Bluetooth: hci0: Minimum firmware build 1 week 10 2014 Jul 16 16:58:41 machine kernel: Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi Jul 16 16:58:41 machine NetworkManager[898]: [1468652321.0800] Loaded device plugin: NMBluezManager (/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so) Jul 16 16:58:41 machine kernel: Bluetooth: hci0: Failed to send firmware data (-38) Jul 16 16:58:43 machine kernel: Bluetooth: hci0 command 0xfc05 tx timeout Jul 16 16:58:47 machine kernel: Bluetooth: hci0: Reading Intel version information failed (-19) Jul 16 16:58:48 machine systemd[1]: Starting Bluetooth service... Jul 16 16:58:48 machine bluetoothd[1482]: Bluetooth daemon 5.37 Jul 16 16:58:48 machine bluetoothd[1482]: Starting SDP server Jul 16 16:58:48 machine systemd[1]: Started Bluetooth service. Jul 16 16:58:48 machine systemd[1]: Reached target Bluetooth. Jul 16 16:58:48 machine systemd[1]: bluetooth.target: Unit not needed anymore. Stopping. Jul 16 16:58:48 machine systemd[1]: Stopped target Bluetooth. Jul 16 16:58:48 machine kernel: Bluetooth: BNEP (Ethernet Emulation) ver 1.3 Jul 16 16:58:48 machine kernel: Bluetooth: BNEP filters: protocol multicast Jul 16 16:58:48 machine kernel: Bluetooth: BNEP socket layer initialized Jul 16 16:58:48 machine bluetoothd[1482]: Bluetooth management interface 1.10 initialized Jul 16 16:58:48 machine kernel: Bluetooth: hci0: Bootloader revision 0.0 build 2 week 52 2014 Jul 16 16:58:48 machine kernel: Bluetooth: hci0: Device revision is 5 Jul 16 16:58:48 machine kernel: Bluetooth: hci0: Secure boot is enabled Jul 16 16:58:48 machine kernel: Bluetooth: hci0: OTP lock is enabled Jul 16 16:58:48 machine kernel: Bluetooth: hci0: API lock is enabled Jul 16 16:58:48 machine kernel: Bluetooth: hci0: Debug lock is disabled Jul 16 16:58:48 machine kernel: Bluetooth: hci0: Minimum firmware build 1 week 10 2014 Jul 16 16:58:48 machine kernel: Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi Jul 16 16:58:50 machine kernel: Bluetooth: hci0: Waiting for firmware download to complete Jul 16 16:58:50 machine kernel: Bluetooth: hci0: Firmware loaded in 1679702 usecs Jul 16 16:58:50 machine kernel: Bluetooth: hci0: Waiting for device to boot Jul 16 16:58:50 machine kernel: Bluetooth: hci0: Device booted in 11770 usecs Jul 16 16:58:50 machine kernel: Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-11-5.ddc Jul 16 16:58:50 machine kernel: Bluetooth: hci0: Applying Intel DDC parameters completed Jul 16 16:58:50 machine kernel: Bluetooth: hci0: Setting Intel event mask failed (-16) Jul 16 16:58:50 machine bluetoothd[1482]: Failed to obtain handles for "Service Changed" characteristic Jul 16 16:58:50 machine bluetoothd[1482]: Not enough free handles to register service Jul 16 16:58:50 machine bluetoothd[1482]: Error adding Link Loss service Jul 16 16:58:50 machine bluetoothd[1482]: Not enough free handles to register service Jul 16 16:58:50 machine bluetoothd[1482]: Not enough free handles to register service Jul 16 16:58:50 machine bluetoothd[1482]: Not enough free handles to register service Jul 16 16:58:50 machine bluetoothd[1482]: Current Time Service could not be registered Jul 16 16:58:50 machine bluetoothd[1482]: gatt-time-server: Input/output error (5) Jul 16 16:58:50 machine bluetoothd[1482]: Not enough free handles to register service Jul 16 16:58:50 machin
