At the request of Tele42 from the valve bug tracker for steam (https://github.com/ValveSoftware/steam-for-linux/issues/4063) I am reporting this here as well. Please let me know if you need any additional information from me. Whenever I open Steam, my monitors flash black before recovering. It seems that the intel driver is crashing, but recovers (I do not lose my gnome or xorg session). dmesg: [ 6.317623] ------------[ cut here ]------------ [ 6.317642] WARNING: CPU: 0 PID: 1548 at drivers/gpu/drm/i915/i915_gem.c:5269 i915_gem_track_fb+0x129/0x140 [i915]() [ 6.317644] WARN_ON(!(old->frontbuffer_bits & frontbuffer_bits)) [ 6.317646] Modules linked in: [ 6.317647] cmac ecb fuse xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter br_netfilter nf_nat nf_conntrack bridge stp llc dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio libcrc32c joydev loop mousedev dm_mod hid_logitech_hidpp bnep hid_logitech_dj hid_generic usbhid hid snd_hda_codec_hdmi arc4 iwlmvm intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp iTCO_wdt coretemp iTCO_vendor_support kvm_intel snd_hda_codec_via snd_hda_codec_generic mac80211 kvm crct10dif_pclmul crc32_pclmul i915 snd_hda_intel crc32c_intel ghash_clmulni_intel snd_hda_codec uvcvideo btusb snd_hda_core iwlwifi btrtl videobuf2_vmalloc aesni_intel snd_hwdep snd_pcm videobuf2_memops btbcm aes_x86_64 btintel lrw evdev videobuf2_core [ 6.317691] gf128mul input_leds glue_helper led_class ablk_helper v4l2_common drm_kms_helper cryptd rtsx_pci_ms videodev snd_timer bluetooth mac_hid media drm r8169 mei_me snd psmouse serio_raw pcspkr cfg80211 i2c_i801 memstick mei soundcore intel_gtt mii i2c_algo_bit rfkill ie31200_edac tpm_infineon edac_core lpc_ich tpm_tis shpchp tpm wmi thermal video battery ac button processor sch_fq_codel vboxnetadp(O) vboxnetflt(O) vboxdrv(O) ip_tables x_tables ext4 crc16 mbcache jbd2 sr_mod sd_mod cdrom rtsx_pci_sdmmc mmc_core atkbd libps2 ahci libahci xhci_pci ehci_pci libata xhci_hcd ehci_hcd scsi_mod usbcore rtsx_pci usb_common i8042 serio [ 6.317738] CPU: 0 PID: 1548 Comm: gnome-shell Tainted: G O 4.2.2-1-ARCH #1 [ 6.317741] Hardware name: System76, Inc. Kudu Professional /Kudu Professional , BIOS 1.03.05RS762 06/23/2014 [ 6.317743] 0000000000000000 00000000a437b514 ffff8804007a7a28 ffffffff8156b9da [ 6.317746] 0000000000000000 ffff8804007a7a80 ffff8804007a7a68 ffffffff81074886 [ 6.317749] ffff8800d6550000 0000000000000010 ffff8803eb2846c0 ffff880406b0c000 [ 6.317751] Call Trace: [ 6.317757] [<ffffffff8156b9da>] dump_stack+0x4c/0x6e [ 6.317761] [<ffffffff81074886>] warn_slowpath_common+0x86/0xc0 [ 6.317764] [<ffffffff81074915>] warn_slowpath_fmt+0x55/0x70 [ 6.317773] [<ffffffffa0901c19>] i915_gem_track_fb+0x129/0x140 [i915] [ 6.317784] [<ffffffffa0949477>] intel_prepare_plane_fb+0xe7/0x1a0 [i915] [ 6.317790] [<ffffffffa067de39>] drm_atomic_helper_prepare_planes+0x59/0xe0 [drm_kms_helper] [ 6.317800] [<ffffffffa094188e>] __intel_set_mode+0x1ae/0xb60 [i915] [ 6.317809] [<ffffffffa094350f>] ? intel_modeset_compute_config+0x3af/0xb60 [i915] [ 6.317820] [<ffffffffa0948e26>] intel_crtc_set_config+0x2b6/0x580 [i915] [ 6.317827] [<ffffffffa05039f6>] drm_mode_set_config_internal+0x66/0x100 [drm] [ 6.317834] [<ffffffffa0508809>] drm_mode_setcrtc+0x3e9/0x500 [drm] [ 6.317840] [<ffffffffa04f9575>] drm_ioctl+0x125/0x610 [drm] [ 6.317845] [<ffffffffa0508420>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] [ 6.317850] [<ffffffff811e29e5>] do_vfs_ioctl+0x295/0x480 [ 6.317853] [<ffffffff811ecad7>] ? __fget+0x77/0xb0 [ 6.317855] [<ffffffff811e2c49>] SyS_ioctl+0x79/0x90 [ 6.317858] [<ffffffff81570f6e>] entry_SYSCALL_64_fastpath+0x12/0x71 [ 6.317860] ---[ end trace 9e8b94702064bdc0 ]--- uname Linux nathan-arch 4.2.2-1-ARCH #1 SMP PREEMPT Tue Sep 29 22:21:33 CEST 2015 x86_64 GNU/Linux Drivers Name : xf86-video-intel Version : 1:2.99.917+478+gdf72bc5-2 Description : X.org Intel i810/i830/i915/945G/G965+ video drivers Steam System Information Processor Information: Vendor: GenuineIntel CPU Family: 0x6 CPU Model: 0x3c CPU Stepping: 0x3 CPU Type: 0x0 Speed: 3800 Mhz 8 logical processors 4 physical processors HyperThreading: Supported FCMOV: Supported SSE2: Supported SSE3: Supported SSSE3: Supported SSE4a: Unsupported SSE41: Supported SSE42: Supported Network Information: Network Speed: Operating System Version: "Arch Linux" (64 bit) Kernel Name: Linux Kernel Version: 4.2.2-1-ARCH X Server Vendor: The X.Org Foundation X Server Release: 11702000 X Window Manager: GNOME Shell Steam Runtime Version: steam-runtime-release_2015-06-12 Video Card: Driver: Intel Open Source Technology Center Mesa DRI Intel(R) Haswell Mobile x86/MMX/SSE2 Driver Version: 3.0 Mesa 11.0.3 OpenGL Version: 3.0 Desktop Color Depth: 24 bits per pixel Monitor Refresh Rate: 60 Hz VendorID: 0x8086 DeviceID: 0x416 Number of Monitors: 2 Number of Logical Video Cards: 1 Primary Display Resolution: 1920 x 1080 Desktop Resolution: 3280 x 1080 Primary Display Size: 15.04" x 8.46" (17.24" diag) 38.2cm x 21.5cm (43.8cm diag) Primary VRAM Not Detected Sound card: Audio device: Intel Haswell HDMI Memory: RAM: 15972 Mb Miscellaneous: UI Language: English LANG: en_US.UTF-8 Microphone: Not set Total Hard Disk Space Available: 480593 Mb Largest Free Hard Disk Block: 352680 Mb Installed software: Recent Failure Reports:
This doesn't appear to be a Mesa problem, but I'm not sure what the right component is. I'm reassigning to DRI since this occurs in the kernel. Perhaps the DDX is a better choice. Chris: Any ideas what's going on here?
Yes, it doesn't sound like a crash at all (the warning is fairly harmless side-effect of the current atomic modesetting code). The flicker sounds just like the usual effect on the monitor of switching between modes. Adding drm.debug=6 (to the kernel commandline and pasting the output of dmesg after the event) should be enough to put the warning in context and with an Xorg.0.log might explain what the client is requesting at the time of the flicker.
Created attachment 118880 [details] drm.debug=6 dmesg output I've attached the dmesg output with drm.debug=6 while opening steam. I noticed that this also occurs when logging into gnome, The screen flashes black before presenting the desktop instead of smoothly fading and similar messages appear in dmesg.
Created attachment 118881 [details] Xorg.0.log
Presumed fixed per the dupe. *** This bug has been marked as a duplicate of bug 91866 ***
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