[Kernel-packages] [Bug 1675204] ProcEnviron.txt
apport information ** Attachment added: "ProcEnviron.txt" https://bugs.launchpad.net/bugs/1675204/+attachment/4842940/+files/ProcEnviron.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/1675204 Title: Intel HD graphics crashes when connecting to 3 outputs (DVI+HDMI+DP) Status in linux package in Ubuntu: Confirmed Bug description: I have a very strange issue related to Intel graphics drivers (i915) with 3 connected on-board displays. I have a Xubuntu (14.04 LTS with HWE on 4.4.0-66 kernel) desktop computer running on a i7-6700K processor and on-board graphics (Mobo: AsRock z170 extreme4). I connect it to 3 displays - a 3440x1400 LG display (via onboard DP port), a 1920x1200 Dell display (via on-board HDMI), and a Sony 4k TV (via onboard DVI and a DVI-to-HDMI adapter). If I just connect my desktop to the first two displays (not the TV), everything works fine (except some minor issues). However, if I connect the 4k TV, even the TV is not on, my graphics starts to flicker every 5 min-ish (window theme turns off and then turns quickly back on); after a few flickering, the window theme will disappear, and the screen becomes weird - my chrome window will not fresh, or show blank boxes etc. If I disconnect the DVI connector to the TV (just use the LG+Dell dual-display), flickering and crash will not appear. I want to mention that, when I connect the computer to all 3 displays, I was actually able to get video output to all displays (I used arandr to configure them). I can even get 4k output to the 4k TV at 30Hz. I can't find a useful log entry when the flicking or graphics crash happens. I can only see a "CPU pipe A FIFO underrun" for pipe A/B/F (log attached at the end), but I can see many similar errors in my log and the appearance is not correlated to the flickering/crash. The "pipe A FIFO underrun" issue was previously reported in Bug#1550779. I also see "intel(0): HDMI max TMDS frequency 30KHz" entry in my Xorg.0.log file constantly, I also do not see an consistent mapping between the log entry and the flickering. Can anyone tell me how to properly debug this? what can I do to get a log for what was wrong? --- [ 145.033055] WARNING: CPU: 2 PID: 1804 at /build/linux-lts-xenial-drAJVo/linux-lts-xenial-4.4.0/ubuntu/i915/intel_pm.c:3675 skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo]() [ 145.033058] WARN_ON(!wm_changed) [ 145.033060] Modules linked in: nfsv3 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) autofs4 rpcsec_gss_krb5 nfsv4 usblp joydev input_leds ti_usb_3410_5052 usbserial hid_generic gspca_ov534 gspca_main v4l2_common videodev media snd_usb_audio snd_usbmidi_lib usbhid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic nvidia_uvm(POE) uas usb_storage intel_rapl x86_pkg_temp_thermal intel_powerclamp mxm_wmi coretemp kvm_intel bnep kvm rfcomm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hda_core nvidia_drm(POE) nvidia_modeset(POE) snd_hwdep aesni_intel snd_pcm aes_x86_64 nvidia(POE) lrw gf128mul snd_seq_midi snd_seq_midi_event glue_helper ablk_helper snd_rawmidi cryptd snd_seq snd_seq_device snd_timer serio_raw snd soundcore nfsd i915_bpo auth_rpcgss nfs_acl nfs binfmt_misc lockd grace 8250_fintek hci_uart sunrpc intel_ips drm_kms_helper btbcm pinctrl_sunrisepoint btqca fscache pinctrl_intel btintel intel_lpss_ac pi bluetooth i2c_hid intel_lpss drm hid video i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt shpchp mei_me mei mac_hid acpi_als wmi kfifo_buf industrialio acpi_pad parport_pc ppdev lp parport e1000e psmouse ptp pps_core ahci nvme libahci fjes [ 145.033284] CPU: 2 PID: 1804 Comm: Xorg Tainted: PW OE 4.4.0-66-generic #87~14.04.1-Ubuntu [ 145.033287] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z170 Extreme4, BIOS P7.00 09/09/2016 [ 145.033290] 88086e5879a0 813dc80c 88086e5879e8 [ 145.033295] c0556700 88086e5879d8 8107e9d6 88086d898000 [ 145.033300] 88086d89b000 0004 880871924b78 88086e587a64 [ 145.033305] Call Trace: [ 145.033311] [] dump_stack+0x63/0x87 [ 145.033317] [] warn_slowpath_common+0x86/0xc0 [ 145.033323] [] warn_slowpath_fmt+0x4c/0x50 [ 145.033358] [] ? ironlake_irq_handler+0x660/0xba0 [i915_bpo] [ 145.033393] [] skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo] [ 145.033435] [] skl_update_wm+0x19a/0x6f0 [i915_bpo] [ 145.033491] [] ? chv_write8+0x390/0x390 [i915_bpo] [ 145.033551] [] ? skl_ddi_pll_disable+0x70/0x80 [i915_bpo] [ 145.033590] [] intel_update_watermarks+0x1e/0x30 [i915_bpo] [ 145.033649] [] intel_atomic_commit+0x432/0x1440 [i915_bpo] [ 145.033688] [] ?
[Kernel-packages] [Bug 1675204] ProcEnviron.txt
apport information ** Attachment added: "ProcEnviron.txt" https://bugs.launchpad.net/bugs/1675204/+attachment/4842925/+files/ProcEnviron.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/1675204 Title: Intel HD graphics crashes when connecting to 3 outputs (DVI+HDMI+DP) Status in linux package in Ubuntu: Confirmed Bug description: I have a very strange issue related to Intel graphics drivers (i915) with 3 connected on-board displays. I have a Xubuntu (14.04 LTS with HWE on 4.4.0-66 kernel) desktop computer running on a i7-6700K processor and on-board graphics (Mobo: AsRock z170 extreme4). I connect it to 3 displays - a 3440x1400 LG display (via onboard DP port), a 1920x1200 Dell display (via on-board HDMI), and a Sony 4k TV (via onboard DVI and a DVI-to-HDMI adapter). If I just connect my desktop to the first two displays (not the TV), everything works fine (except some minor issues). However, if I connect the 4k TV, even the TV is not on, my graphics starts to flicker every 5 min-ish (window theme turns off and then turns quickly back on); after a few flickering, the window theme will disappear, and the screen becomes weird - my chrome window will not fresh, or show blank boxes etc. If I disconnect the DVI connector to the TV (just use the LG+Dell dual-display), flickering and crash will not appear. I want to mention that, when I connect the computer to all 3 displays, I was actually able to get video output to all displays (I used arandr to configure them). I can even get 4k output to the 4k TV at 30Hz. I can't find a useful log entry when the flicking or graphics crash happens. I can only see a "CPU pipe A FIFO underrun" for pipe A/B/F (log attached at the end), but I can see many similar errors in my log and the appearance is not correlated to the flickering/crash. The "pipe A FIFO underrun" issue was previously reported in Bug#1550779. I also see "intel(0): HDMI max TMDS frequency 30KHz" entry in my Xorg.0.log file constantly, I also do not see an consistent mapping between the log entry and the flickering. Can anyone tell me how to properly debug this? what can I do to get a log for what was wrong? --- [ 145.033055] WARNING: CPU: 2 PID: 1804 at /build/linux-lts-xenial-drAJVo/linux-lts-xenial-4.4.0/ubuntu/i915/intel_pm.c:3675 skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo]() [ 145.033058] WARN_ON(!wm_changed) [ 145.033060] Modules linked in: nfsv3 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) autofs4 rpcsec_gss_krb5 nfsv4 usblp joydev input_leds ti_usb_3410_5052 usbserial hid_generic gspca_ov534 gspca_main v4l2_common videodev media snd_usb_audio snd_usbmidi_lib usbhid snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic nvidia_uvm(POE) uas usb_storage intel_rapl x86_pkg_temp_thermal intel_powerclamp mxm_wmi coretemp kvm_intel bnep kvm rfcomm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hda_core nvidia_drm(POE) nvidia_modeset(POE) snd_hwdep aesni_intel snd_pcm aes_x86_64 nvidia(POE) lrw gf128mul snd_seq_midi snd_seq_midi_event glue_helper ablk_helper snd_rawmidi cryptd snd_seq snd_seq_device snd_timer serio_raw snd soundcore nfsd i915_bpo auth_rpcgss nfs_acl nfs binfmt_misc lockd grace 8250_fintek hci_uart sunrpc intel_ips drm_kms_helper btbcm pinctrl_sunrisepoint btqca fscache pinctrl_intel btintel intel_lpss_ac pi bluetooth i2c_hid intel_lpss drm hid video i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt shpchp mei_me mei mac_hid acpi_als wmi kfifo_buf industrialio acpi_pad parport_pc ppdev lp parport e1000e psmouse ptp pps_core ahci nvme libahci fjes [ 145.033284] CPU: 2 PID: 1804 Comm: Xorg Tainted: PW OE 4.4.0-66-generic #87~14.04.1-Ubuntu [ 145.033287] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z170 Extreme4, BIOS P7.00 09/09/2016 [ 145.033290] 88086e5879a0 813dc80c 88086e5879e8 [ 145.033295] c0556700 88086e5879d8 8107e9d6 88086d898000 [ 145.033300] 88086d89b000 0004 880871924b78 88086e587a64 [ 145.033305] Call Trace: [ 145.033311] [] dump_stack+0x63/0x87 [ 145.033317] [] warn_slowpath_common+0x86/0xc0 [ 145.033323] [] warn_slowpath_fmt+0x4c/0x50 [ 145.033358] [] ? ironlake_irq_handler+0x660/0xba0 [i915_bpo] [ 145.033393] [] skl_update_other_pipe_wm+0x191/0x1a0 [i915_bpo] [ 145.033435] [] skl_update_wm+0x19a/0x6f0 [i915_bpo] [ 145.033491] [] ? chv_write8+0x390/0x390 [i915_bpo] [ 145.033551] [] ? skl_ddi_pll_disable+0x70/0x80 [i915_bpo] [ 145.033590] [] intel_update_watermarks+0x1e/0x30 [i915_bpo] [ 145.033649] [] intel_atomic_commit+0x432/0x1440 [i915_bpo] [ 145.033688] [] ?
