Hi Daniel, On 24/10/2016 12:54, Daniel J Blueman wrote:
Hi Tvrtko, I'm seeing this warning [1] on a Skylake Dell XPS 15 9550 with the internal 3840x2160 panel with 4.8.4. Let me know if you're interested in any debug.
I suggest best to add your logs to https://bugs.freedesktop.org/show_bug.cgi?id=98214 and go from there. Unfortunately I am not too knowledgable on the display side of things, just happened to add this warning since I was hitting it myself under some circumstances.
Regards, Tvrtko
Many thanks! Daniel -- [1] [ 2236.760626] WARNING: CPU: 1 PID: 1150 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:14178 skl_max_scale.part.120+0x75/0x80 [i915] [ 2236.760627] WARN_ON_ONCE(!crtc_clock || cdclk < crtc_clock) [ 2236.760628] Modules linked in: [ 2236.760629] bnep ax88179_178a usbnet mii ebtable_filter ebtables iptable_mangle xt_DSCP hid_multitouch snd_hda_codec_hdmi dell_led snd_hda_codec_realtek snd_hda_codec_generic i2c_designware_platform i2c_designware_core dell_wmi snd_hda_intel snd_hda_codec snd_hda_core dell_laptop snd_hwdep dell_smbios intel_rapl dcdbas x86_pkg_temp_thermal intel_powerclamp nls_iso8859_1 coretemp crct10dif_pclmul crc32_pclmul snd_pcm ghash_clmulni_intel aesni_intel snd_seq_midi snd_seq_midi_event aes_x86_64 lrw brcmfmac glue_helper ablk_helper snd_rawmidi cryptd uvcvideo intel_cstate brcmutil videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 intel_rapl_perf snd_seq videobuf2_core cfg80211 videodev input_leds joydev snd_seq_device media snd_timer rtsx_pci_ms snd memstick serio_raw soundcore idma64 virt_dma mei_me [ 2236.760673] shpchp processor_thermal_device mei intel_soc_dts_iosf intel_lpss_pci hci_uart btbcm btqca btintel bluetooth int3403_thermal intel_lpss_acpi dell_smo8800 intel_lpss int3402_thermal int3400_thermal intel_hid int340x_thermal_zone acpi_als acpi_pad acpi_thermal_rel sparse_keymap kfifo_buf mac_hid industrialio kvm_intel kvm irqbypass xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables x_tables parport_pc ppdev lp parport autofs4 rtsx_pci_sdmmc nouveau i915 mxm_wmi ttm i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt fb_sys_fops [ 2236.760716] nvme nvme_core drm rtsx_pci i2c_hid hid wmi pinctrl_sunrisepoint video pinctrl_intel fjes [ 2236.760726] CPU: 1 PID: 1150 Comm: Xorg Not tainted 4.8.4-040804-generic #201610220733 [ 2236.760727] Hardware name: Dell Inc. XPS 15 9550/0N7TVV, BIOS 01.02.00 04/07/2016 [ 2236.760729] 0000000000000286 0000000066463e07 ffff8ed2e4f2b930 ffffffffafe12f12 [ 2236.760733] ffff8ed2e4f2b980 0000000000000000 ffff8ed2e4f2b970 ffffffffafa82d9b [ 2236.760736] 00003762000000b0 ffff8ed2e78896c0 ffff8ed2e2fd5800 ffff8ed2e36e5000 [ 2236.760739] Call Trace: [ 2236.760744] [<ffffffffafe12f12>] dump_stack+0x63/0x81 [ 2236.760748] [<ffffffffafa82d9b>] __warn+0xcb/0xf0 [ 2236.760751] [<ffffffffafa82e1f>] warn_slowpath_fmt+0x5f/0x80 [ 2236.760763] [<ffffffffc04a5924>] ? drm_atomic_helper_normalize_zpos+0x264/0x300 [drm_kms_helper] [ 2236.760799] [<ffffffffc0580085>] skl_max_scale.part.120+0x75/0x80 [i915] [ 2236.760830] [<ffffffffc0580156>] intel_check_primary_plane+0xc6/0xe0 [i915] [ 2236.760841] [<ffffffffc04a5924>] ? drm_atomic_helper_normalize_zpos+0x264/0x300 [drm_kms_helper] [ 2236.760875] [<ffffffffc05713f2>] intel_plane_atomic_check+0x132/0x1f0 [i915] [ 2236.760885] [<ffffffffc04a2794>] drm_atomic_helper_check_planes+0x84/0x200 [drm_kms_helper] [ 2236.760926] [<ffffffffc058bef5>] intel_atomic_check+0x155/0x760 [i915] [ 2236.760952] [<ffffffffc0416757>] drm_atomic_check_only+0x187/0x610 [drm] [ 2236.760972] [<ffffffffc0416bf7>] drm_atomic_commit+0x17/0x60 [drm] [ 2236.760983] [<ffffffffc04a49ac>] drm_atomic_helper_disable_plane+0xac/0xf0 [drm_kms_helper] [ 2236.761003] [<ffffffffc040543b>] __setplane_internal+0x17b/0x270 [drm] [ 2236.761006] [<ffffffffafac6f60>] ? __wake_up_sync_key+0x50/0x60 [ 2236.761024] [<ffffffffc0405669>] drm_mode_cursor_universal+0x139/0x240 [drm] [ 2236.761046] [<ffffffffc04057ee>] drm_mode_cursor_common+0x7e/0x180 [drm] [ 2236.761070] [<ffffffffc0409f10>] drm_mode_cursor_ioctl+0x50/0x70 [drm] [ 2236.761091] [<ffffffffc03fbda0>] drm_ioctl+0x200/0x4f0 [drm] [ 2236.761115] [<ffffffffc0409ec0>] ? drm_mode_setcrtc+0x580/0x580 [drm] [ 2236.761120] [<ffffffffafc30d97>] ? __vfs_read+0x37/0x150 [ 2236.761124] [<ffffffffafc46a53>] do_vfs_ioctl+0xa3/0x600 [ 2236.761129] [<ffffffffafa9015b>] ? recalc_sigpending+0x1b/0x50 [ 2236.761134] [<ffffffffafa90f21>] ? __set_task_blocked+0x41/0xa0 [ 2236.761138] [<ffffffffafc47029>] SyS_ioctl+0x79/0x90 [ 2236.761140] [<ffffffffafa93b9e>] ? SyS_rt_sigprocmask+0x8e/0xc0 [ 2236.761145] [<ffffffffb0282ef6>] entry_SYSCALL_64_fastpath+0x1e/0xa8 [ 2236.761148] ---[ end trace 0a69ec658ca26029 ]--- [ 2290.023659] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=3183 end=3184) time 560 us, min 2146, max 2159, scanline start 2120, end 2189 [ 3356.918317] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=67193 end=67194) time 719 us, min 2146, max 2159, scanline start 2107, end 2197 [ 5485.971871] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=194929 end=194930) time 785 us, min 2146, max 2159, scanline start 2073, end 2166 [ 5962.865923] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=223541 end=223542) time 281 us, min 2146, max 2159, scanline start 2134, end 2160 [ 6072.139161] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=230097 end=230098) time 627 us, min 2146, max 2159, scanline start 2102, end 2185 [ 6072.155778] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=230098 end=230099) time 753 us, min 2146, max 2159, scanline start 2091, end 2197 [ 6133.875655] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=233801 end=233802) time 280 us, min 2146, max 2159, scanline start 2137, end 2180 [ 6255.420329] nouveau 0000:01:00.0: DRM: resuming kernel object tree... [ 6255.559367] nouveau 0000:01:00.0: priv: HUB0: 10ecc0 ffffffff (1b40822c) [ 6255.580032] nouveau 0000:01:00.0: DRM: resuming client object trees... [ 6261.528053] nouveau 0000:01:00.0: DRM: evicting buffers... [ 6261.528057] nouveau 0000:01:00.0: DRM: waiting for kernel channels to go idle... [ 6261.528432] nouveau 0000:01:00.0: DRM: suspending client object trees... [ 6261.531724] nouveau 0000:01:00.0: DRM: suspending kernel object tree... [ 9022.210358] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=48190 end=48191) time 278 us, min 2146, max 2159, scanline start 2129, end 2160 [13423.649275] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=190290 end=190291) time 530 us, min 2146, max 2159, scanline start 2084, end 2213
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