Hi, When you run the mpv media player in fullscreen, it will soft crash i think. The result is a popup showing: "desktop effects were restarted due to a graphics reset" This is on a dualscreen setup! Reproducing this is difficult since it only happens in one case: - fresh boot - open mpv with like this: "mpv http://www.npo.nl/live/npo-1" Note, you need "youtube-dl" for that to work. It will open the live stream of the dutch NPO1 channel. - go to fullscreen mode (press f). Mpv now plays the video fullscreen on one monitor. - now go to another monitor and do something else. Browsing the web or what not. Within seconds the image completely freezes (only the mouse cursor remains active) for about 20 seconds. Sound continues to play fine, but you can't do anything at all. After the ~20 second freeze you see a popup with the text: "desktop effects were restarted due to a graphics reset".. Afterwards everything is fine. You can stop mpv, start another stream, play it fullscreen. No problem at all, no crashes/stalls. It only happens once! The very first time you start mpv. I tried restarting kwin to see if that makes mpv stall the graphics card for the next run, but it didn't seem to be the case. Login/out also didn't help. A real reboot seems to be the only way (i know of now) to reproduce this issue. You probably need as much information as you can get to reproduce this, so here we go. This is the kwin output: kwin_core: Extensions: shape: 0x "11" composite: 0x "4" render: 0x "b" fixes: 0x "50" randr: 0x "14" sync: 0x "31" damage: 0x "11" Constructing a KPluginInfo object from old style JSON. Please use kcoreaddons_desktop_to_json() for "/usr/lib/qt/plugins/org.kde.kdecoration2/oxygendecoration.so" instead of kservice_desktop_to_json() in your CMake code. Constructing a KPluginInfo object from old style JSON. Please use kcoreaddons_desktop_to_json() for "/usr/lib/qt/plugins/org.kde.kdecoration2/breezedecoration.so" instead of kservice_desktop_to_json() in your CMake code. Constructing a KPluginInfo object from old style JSON. Please use kcoreaddons_desktop_to_json() for "/usr/lib/qt/plugins/org.kde.kdecoration2/kwin5_aurorae.so" instead of kservice_desktop_to_json() in your CMake code. kf5.kservice.sycoca: Trying to open ksycoca from "/home/mark/.cache/ksycoca5" Trying to load decoration plugin: "/usr/lib/qt/plugins/org.kde.kdecoration2/breezedecoration.so" kwin_core: screens: 2 desktops: 1 kwin_core: Done. kwin_core: User timestamp, ASN: 231240 kwin_core: User timestamp, final: 'ID: 41943059 ;WMCLASS: "plasmashell" : "plasmashell" ;Caption: "Desktop — Plasma" ' : 231240 kwin_core: Activation: No client active, allowing kwin_core: screens: 2 desktops: 1 kwin_core: Done. kwin_core: User timestamp, ASN: 271976 kwin_core: User timestamp, final: 'ID: 41943055 ;WMCLASS: "plasmashell" : "plasmashell" ;Caption: "Desktop — Plasma" ' : 271976 kwin_core: Activation: No client active, allowing kwin_core: screens: 2 desktops: 1 kwin_core: Done. kwin_core: User timestamp, ASN: 1022995 kwin_core: User timestamp, final: 'ID: 54525953 ;WMCLASS: "chromium" : "chromium" ;Caption: "Enter A Bug - Chromium" ' : 1022995 kwin_core: Activation: No client active, allowing kwin_core: screens: 2 desktops: 1 kwin_core: Done. kwin_core: User timestamp, ASN: 1127861 kwin_core: User timestamp, final: 'ID: 2097159 ;WMCLASS: "konsole" : "konsole" ;Caption: "mark : zsh" ' : 1127861 kwin_core: Activation: No client active, allowing kwin_core: screens: 2 desktops: 1 kwin_core: Done. kwin_core: User timestamp, ASN: 824775 kwin_core: User timestamp, final: 'ID: 41943067 ;WMCLASS: "plasmashell" : "plasmashell" ;Caption: "Plasma" ' : 824775 kwin_core: Activation: No client active, allowing kwin_core: screens: 2 desktops: 1 kwin_core: Done. kwin_core: screens: 2 desktops: 1 kwin_core: Done. QXcbConnection: XCB error: 8 (BadMatch), sequence: 1273, resource id: 2097159, major code: 42 (SetInputFocus), minor code: 0 kwin_core: Initializing OpenGL compositing kwin_core: Choosing GLXFBConfig 0x115 X visual 0x2b depth 24 RGBA 8:8:8:0 ZS 0:0 OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce GTX 670/PCIe/SSE2 OpenGL version string: 3.1.0 NVIDIA 352.30 OpenGL shading language version string: 1.40 NVIDIA via Cg compiler Driver: NVIDIA Driver version: 352.30 GPU class: Unknown OpenGL version: 3.1 GLSL version: 1.40 X server version: 1.17.2 Linux kernel version: 4.1.4 Requires strict binding: no GLSL shaders: yes Texture NPOT support: yes Virtual Machine: no Direct rendering: true kwin_core: Initializing fences for synchronization with the X command stream kwin_core: Color correction: false kwin_core: 0x20071: Buffer detailed info: Buffer object 1 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_DYNAMIC_DRAW) will use SYSTEM HEAP memory as the source for buffer object operations. kwin_core: 0x20071: Buffer detailed info: Buffer object 1 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_DYNAMIC_DRAW) has been mapped WRITE_ONLY in SYSTEM HEAP memory (fast). kwin_core: OpenGL 2 compositing successfully initialized kwin_core: Vertical Refresh rate 60 Hz ( "primary screen" ) kf5.kservice.sycoca: Trying to open ksycoca from "/home/mark/.cache/ksycoca5" Using FBConfig 0x1a8 for visual 0xc4 kwin_core: 0x20071: Buffer detailed info: Buffer object 2 (bound to GL_ELEMENT_ARRAY_BUFFER_ARB, usage hint is GL_STATIC_DRAW) will use VIDEO memory as the source for buffer object operations. Using FBConfig 0x119 for visual 0x2d QXcbConnection: XCB error: 9 (BadDrawable), sequence: 1456, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 1466, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 1467, resource id: 0, major code: 14 (GetGeometry), minor code: 0 QXcbConnection: XCB error: 9 (BadDrawable), sequence: 1468, resource id: 0, major code: 14 (GetGeometry), minor code: 0 kwin_core: screens: 2 desktops: 1 kwin_core: Done. Using FBConfig 0x1a8 for visual 0xc4 kwin_core: Successfully loaded built-in effect: "blur" kwin_core: Successfully loaded built-in effect: "contrast" kwin_core: Session path: "/org/freedesktop/login1/session/c4" kwin_core: Successfully loaded built-in effect: "dashboard" kwin_core: Successfully loaded scripted effect: "kwin4_effect_translucency" kwin_core: Successfully loaded built-in effect: "desktopgrid" kwin_core: Successfully loaded scripted effect: "kwin4_effect_windowaperture" kwin_core: Successfully loaded built-in effect: "highlightwindow" kwin_core: Successfully loaded scripted effect: "kwin4_effect_maximize" kwin_core: Successfully loaded built-in effect: "kscreen" kwin_core: Successfully loaded scripted effect: "kwin4_effect_fade" kwin_core: Successfully loaded built-in effect: "logout" kwin_core: Successfully loaded scripted effect: "kwin4_effect_dialogparent" kwin_core: Successfully loaded built-in effect: "magiclamp" kwin_core: Successfully loaded scripted effect: "kwin4_effect_login" kwin_core: Successfully loaded built-in effect: "presentwindows" kwin_core: Successfully loaded built-in effect: "screenedge" kwin_core: Successfully loaded built-in effect: "screenshot" kwin_core: Successfully loaded built-in effect: "slide" kwin_core: Successfully loaded built-in effect: "slidingpopups" kwin_core: Successfully loaded built-in effect: "startupfeedback" kwin_core: Successfully loaded built-in effect: "zoom" dmesg gave nothing around the time of the stall. journalctl did gave something: aug 09 14:21:49 Mark-Linux kwin_x11[1489]: kwin_core: 0x20071: Buffer detailed info: Buffer object 7 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_STATIC_DRAW) will use VIDEO memory as the source for buffer object operations. aug 09 14:21:49 Mark-Linux kwin_x11[1489]: kwin_core: 0x20071: Buffer detailed info: Buffer object 6 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_STATIC_DRAW) will use VIDEO memory as the source for buffer object operations. aug 09 14:21:49 Mark-Linux kwin_x11[1489]: kwin_core: 0x20071: Buffer detailed info: Buffer object 5 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_STATIC_DRAW) will use VIDEO memory as the source for buffer object operations. aug 09 14:21:49 Mark-Linux kwin_x11[1489]: kwin_core: 0x20071: Buffer detailed info: Buffer object 4 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_STATIC_DRAW) will use VIDEO memory as the source for buffer object operations. aug 09 14:21:49 Mark-Linux kwin_x11[1489]: kwin_core: 0x20071: Buffer detailed info: Buffer object 3 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_STATIC_DRAW) will use VIDEO memory as the source for buffer object operations. aug 09 14:21:49 Mark-Linux kwin_x11[1489]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 63211, resource id: 33554434, major code: 18 (ChangeProperty), minor code: 0 aug 09 14:21:49 Mark-Linux kwin_x11[1489]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 63207, resource id: 33554433, major code: 18 (ChangeProperty), minor code: 0 lsmod output: Module Size Used by ppdev 20480 0 parport_pc 28672 0 parport 36864 2 ppdev,parport_pc fuse 90112 3 vmw_vsock_vmci_transport 32768 0 vsock 32768 1 vmw_vsock_vmci_transport vmw_vmci 61440 1 vmw_vsock_vmci_transport nls_iso8859_1 16384 1 nls_cp437 20480 1 vfat 24576 1 fat 65536 1 vfat mousedev 20480 0 joydev 20480 0 snd_hda_codec_hdmi 53248 1 intel_rapl 20480 0 iosf_mbi 16384 1 intel_rapl x86_pkg_temp_thermal 16384 0 intel_powerclamp 16384 0 coretemp 16384 0 kvm_intel 155648 0 hid_generic 16384 0 kvm 442368 1 kvm_intel usbhid 49152 0 hid 110592 2 hid_generic,usbhid crct10dif_pclmul 16384 0 crc32_pclmul 16384 0 nvidia 8552448 142 crc32c_intel 24576 0 ghash_clmulni_intel 16384 0 aesni_intel 172032 0 snd_hda_codec_via 24576 1 snd_hda_codec_generic 69632 1 snd_hda_codec_via aes_x86_64 20480 1 aesni_intel lrw 16384 1 aesni_intel snd_hda_intel 28672 5 snd_hda_controller 28672 1 snd_hda_intel snd_hda_codec 98304 5 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller iTCO_wdt 16384 0 evdev 24576 7 gf128mul 16384 1 lrw mxm_wmi 16384 0 snd_hda_core 28672 5 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_codec_generic,snd_hda_codec,snd_hda_controller iTCO_vendor_support 16384 1 iTCO_wdt mac_hid 16384 0 glue_helper 16384 1 aesni_intel ablk_helper 16384 1 aesni_intel snd_hwdep 16384 1 snd_hda_codec psmouse 122880 0 cryptd 20480 3 ghash_clmulni_intel,aesni_intel,ablk_helper serio_raw 16384 0 pcspkr 16384 0 snd_pcm 90112 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller drm 286720 3 nvidia alx 36864 0 i2c_i801 20480 0 mei_me 24576 0 ie31200_edac 16384 0 snd_timer 28672 1 snd_pcm i2c_core 49152 3 drm,i2c_i801,nvidia fan 16384 0 edac_core 49152 1 ie31200_edac mei 77824 1 mei_me thermal 20480 0 snd 69632 18 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_via,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel mdio 16384 1 alx soundcore 16384 1 snd battery 20480 0 lpc_ich 24576 0 shpchp 36864 0 wmi 20480 1 mxm_wmi tpm_infineon 20480 0 tpm_tis 20480 0 tpm 32768 2 tpm_tis,tpm_infineon video 24576 0 processor 28672 0 button 16384 0 sch_fq_codel 20480 2 ip_tables 28672 0 x_tables 28672 1 ip_tables ext4 516096 1 crc16 16384 1 ext4 mbcache 20480 1 ext4 jbd2 90112 1 ext4 sr_mod 24576 0 cdrom 53248 1 sr_mod sd_mod 36864 3 atkbd 24576 0 libps2 16384 2 atkbd,psmouse ahci 36864 2 libahci 28672 1 ahci libata 204800 2 ahci,libahci xhci_pci 16384 0 ehci_pci 16384 0 scsi_mod 151552 3 libata,sd_mod,sr_mod xhci_hcd 155648 1 xhci_pci ehci_hcd 73728 1 ehci_pci usbcore 200704 5 ehci_hcd,ehci_pci,usbhid,xhci_hcd,xhci_pci usb_common 16384 1 usbcore i8042 20480 1 libps2 serio 20480 6 serio_raw,atkbd,i8042,psmouse If there is any other information that you need to debug this, please do ask. Reproducible: Always
Note: ticking the "Suspend compositor for full screen windows" seems to fix this issue for me. But this seems like a workaround to me since that feature gives warnings that not all hardware might support it. My hardware apparently does.
That's actually no bug (in KWin) - everything acts as expected :-P When you set mpv fullscreen, for some™ reason, the nvidia driver starts to hang. KWin detects that and restarts the compositor. The only question is *why* fullscreen mpv AND kwin compositing makes the nvidia driver burp. I've some suspicions here, but let's see ;-) a) please dump "qdbus org.kde.KWin /KWin supportInformation" before *and* after the hang (and compositor restart) b) attach /var/log/Xorg.0.log *after* the reset c) attach "dmesg | tail -100" (right) *after* the reset d) attach "dmesg | grep NVRM" *after* the reset Please check the output of mpv, notably what video output (vdpau? opengl?) is used. ---- Suspending redirection for fullscreen windows is not known to cause trouble on nvidia - the unnamed child here is intel; and we meanwhile forcefully disable the feature on intel chips because of the daily bugreports ;-) It's left as a general warning (and because ppl. belive it gains them much performance, what's no more true since ages. Suspending the compositor altogether does. Just not redirecting one window has little impact in this regard)
Weird, I've had this issue for weeks! Now - while trying to reproduce it to provide the requested information - i'm unable to reproduce it.. sigh.. I will post the info you requested as soon as i get this issue again :)
setting to waitingforinfo till you are able to reproduce it again.
Just had the issue again. The information: dmesg | tail -100 --- right after the reset (i don't think it tells anything though.) └─> $ dmesg | tail -100 [ 1.225055] usb 5-1.3: new full-speed USB device number 3 using xhci_hcd [ 1.275812] systemd-journald[84]: Received SIGTERM from PID 1 (systemd). [ 1.378217] usb 5-1.4: new low-speed USB device number 4 using xhci_hcd [ 1.398167] tsc: Refined TSC clocksource calibration: 3503.445 MHz [ 1.398172] clocksource tsc: mask: 0xffffffffffffffff max_cycles: 0x32800736690, max_idle_ns: 440795289710 ns [ 1.450458] systemd[1]: RTC configured in localtime, applying delta of 120 minutes to system time. [ 1.473919] usb 5-1.4: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes [ 1.504941] ip_tables: (C) 2000-2006 Netfilter Core Team [ 1.505003] systemd[1]: Inserted module 'ip_tables' [ 1.805326] EXT4-fs (sda4): re-mounted. Opts: data=ordered [ 2.184891] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input2 [ 2.184899] ACPI: Power Button [PWRB] [ 2.184975] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3 [ 2.184978] ACPI: Power Button [PWRF] [ 2.197915] wmi: Mapper loaded [ 2.229445] random: nonblocking pool is initialized [ 2.234438] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042F conflicts with OpRegion 0x0000000000000400-0x000000000000047F (\PMIO) (20150410/utaddress-254) [ 2.234447] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 2.234455] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150410/utaddress-254) [ 2.234458] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 2.234460] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150410/utaddress-254) [ 2.234465] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 2.234473] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052F conflicts with OpRegion 0x0000000000000500-0x000000000000051F (\LED_) (20150410/utaddress-254) [ 2.234478] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150410/utaddress-254) [ 2.234486] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 2.234488] lpc_ich: Resource conflict(s) found affecting gpio_ich [ 2.234583] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4 [ 2.235218] thermal LNXTHERM:00: registered as thermal_zone0 [ 2.235221] ACPI: Thermal Zone [TZ00] (28 C) [ 2.235427] EDAC MC: Ver: 3.0.0 [ 2.235918] thermal LNXTHERM:01: registered as thermal_zone1 [ 2.235921] ACPI: Thermal Zone [TZ01] (30 C) [ 2.268674] input: PC Speaker as /devices/platform/pcspkr/input/input4 [ 2.280528] i801_smbus 0000:00:1f.3: enabling device (0001 -> 0003) [ 2.280844] ACPI Warning: SystemIO range 0x000000000000F000-0x000000000000F01F conflicts with OpRegion 0x000000000000F000-0x000000000000F00F (\_SB_.PCI0.SBUS.SMBI) (20150410/utaddress-254) [ 2.280850] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 2.281276] systemd-journald[223]: Received request to flush runtime journal from PID 1 [ 2.292340] [drm] Initialized drm 1.1.0 20060810 [ 2.295682] alx 0000:06:00.0 eth0: Qualcomm Atheros AR816x/AR817x Ethernet [90:2b:34:5a:1f:67] [ 2.305076] iTCO_vendor_support: vendor-support=0 [ 2.309150] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11 [ 2.309182] iTCO_wdt: unable to reset NO_REBOOT flag, device disabled by hardware/BIOS [ 2.309246] alx 0000:06:00.0 enp6s0: renamed from eth0 [ 2.314199] AVX version of gcm_enc/dec engaged. [ 2.314201] AES CTR mode by8 optimization enabled [ 2.342820] snd_hda_intel 0000:00:1b.0: enabling device (0000 -> 0002) [ 2.342974] snd_hda_intel 0000:01:00.1: enabling device (0000 -> 0002) [ 2.342997] snd_hda_intel 0000:01:00.1: Disabling MSI [ 2.343002] snd_hda_intel 0000:01:00.1: Handle VGA-switcheroo audio client [ 2.364641] snd_hda_codec_via hdaudioC0D2: autoconfig for VT2020: line_outs=3 (0x24/0x25/0x26/0x0/0x0) type:line [ 2.364645] snd_hda_codec_via hdaudioC0D2: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 2.364647] snd_hda_codec_via hdaudioC0D2: hp_outs=1 (0x28/0x0/0x0/0x0/0x0) [ 2.364649] snd_hda_codec_via hdaudioC0D2: mono: mono_out=0x0 [ 2.364650] snd_hda_codec_via hdaudioC0D2: dig-out=0x2d/0x2e [ 2.364652] snd_hda_codec_via hdaudioC0D2: inputs: [ 2.364654] snd_hda_codec_via hdaudioC0D2: Front Mic=0x29 [ 2.364656] snd_hda_codec_via hdaudioC0D2: Rear Mic=0x2b [ 2.364658] snd_hda_codec_via hdaudioC0D2: Line=0x2a [ 2.373982] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/sound/card0/input6 [ 2.374150] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7 [ 2.374185] input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8 [ 2.374224] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9 [ 2.374259] input: HDA Intel PCH Line Out Front as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10 [ 2.374297] input: HDA Intel PCH Line Out Surround as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11 [ 2.374344] input: HDA Intel PCH Line Out CLFE as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12 [ 2.374397] input: HDA Intel PCH Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13 [ 2.390605] hidraw: raw HID events driver (C) Jiri Kosina [ 2.397249] Switched to clocksource tsc [ 2.411198] intel_rapl: Found RAPL domain package [ 2.411201] intel_rapl: Found RAPL domain core [ 2.412010] usbcore: registered new interface driver usbhid [ 2.412012] usbhid: USB HID core driver [ 2.421488] nvidia: module license 'NVIDIA' taints kernel. [ 2.421492] Disabling lock debugging due to kernel taint [ 2.435196] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=io+mem [ 2.435493] [drm] Initialized nvidia-drm 0.0.0 20150116 for 0000:01:00.0 on minor 0 [ 2.435497] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 352.30 Tue Jul 21 18:53:45 PDT 2015 [ 2.444635] input: Logitech Logitech Illuminated Keyboard as /devices/pci0000:00/0000:00:1c.4/0000:03:00.0/usb5/5-1/5-1.3/5-1.3:1.0/0003:046D:C318.0001/input/input14 [ 2.497402] hid-generic 0003:046D:C318.0001: input,hidraw0: USB HID v1.11 Keyboard [Logitech Logitech Illuminated Keyboard] on usb-0000:03:00.0-1.3/input0 [ 2.497958] input: Logitech Logitech Illuminated Keyboard as /devices/pci0000:00/0000:00:1c.4/0000:03:00.0/usb5/5-1/5-1.3/5-1.3:1.1/0003:046D:C318.0002/input/input15 [ 2.550562] hid-generic 0003:046D:C318.0002: input,hiddev0,hidraw1: USB HID v1.11 Device [Logitech Logitech Illuminated Keyboard] on usb-0000:03:00.0-1.3/input1 [ 2.550660] input: Logitech USB Laser Mouse as /devices/pci0000:00/0000:00:1c.4/0000:03:00.0/usb5/5-1/5-1.4/5-1.4:1.0/0003:046D:C069.0003/input/input16 [ 2.550733] hid-generic 0003:046D:C069.0003: input,hidraw2: USB HID v1.10 Mouse [Logitech USB Laser Mouse] on usb-0000:03:00.0-1.4/input0 [ 2.553677] mousedev: PS/2 mouse device common for all mice [ 2.730921] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input17 [ 2.730965] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input18 [ 2.731009] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input19 [ 2.731046] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input20 [ 3.255145] Guest personality initialized and is inactive [ 3.255193] VMCI host device registered (name=vmci, major=10, minor=58) [ 3.255195] Initialized host personality [ 3.304296] NET: Registered protocol family 40 [ 3.341431] fuse init (API version 7.23) [ 3.489668] ppdev: user-space parallel port driver [ 4.637196] NVRM: Your system is not currently configured to drive a VGA console [ 4.637200] NVRM: on the primary VGA device. The NVIDIA Linux graphics driver [ 4.637202] NVRM: requires the use of a text-mode VGA console. Use of other console [ 4.637203] NVRM: drivers including, but not limited to, vesafb, may result in [ 4.637204] NVRM: corruption and stability problems, and is not supported. [ 5.296941] alx 0000:06:00.0 enp6s0: NIC Up: 1 Gbps Full dmesg | grep NVRM --- right after the reset. └─> $ dmesg | grep NVRM 826:[ 2.435497] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 352.30 Tue Jul 21 18:53:45 PDT 2015 844:[ 4.637196] NVRM: Your system is not currently configured to drive a VGA console 845:[ 4.637200] NVRM: on the primary VGA device. The NVIDIA Linux graphics driver 846:[ 4.637202] NVRM: requires the use of a text-mode VGA console. Use of other console 847:[ 4.637203] NVRM: drivers including, but not limited to, vesafb, may result in 848:[ 4.637204] NVRM: corruption and stability problems, and is not supported. I will attach the support information outputs right after this post.
Created attachment 94062 [details] support information output, right after reset
Created attachment 94063 [details] support information output, before reset
> [ 4.637196] NVRM: Your system is not currently configured to drive a VGA console > [ 4.637200] NVRM: on the primary VGA device. The NVIDIA Linux graphics driver > [ 4.637202] NVRM: requires the use of a text-mode VGA console. Use of other console > [ 4.637203] NVRM: drivers including, but not limited to, vesafb, may result in > [ 4.637204] NVRM: corruption and stability problems, and is not supported. Please see https://wiki.archlinux.org/index.php/GRUB/Tips_and_tricks#Disable_framebuffer Most distros use /etc/default/grub before: > Painting blocks for vertical retrace: yes after: > Painting blocks for vertical retrace: no Do you use triple buffering grep -i triple /var/log/Xorg.0.log or export __GL_YIELD to "USLEEP"? tr '\0' '\n' < "/proc/`pidof kwin_x11`/environ" | grep -i yield
Hi Thomas, Thank you very much for looking into this. Really appreciated! Yes, i use USLEEP: └─> $ env | grep "GL" 27:__GL_YIELD=USLEEP 30:__GL_THREADED_OPTIMIZATIONS=1 I remember adding that because video wasn't playing smooth without it. The xorg log shows nothing for triple buffering.
Ok, please run "kcmshell5 kwincompositing" and set the "tearing prevention" to "never". Double buffering + usleep will get you swapcontrol (v'sync), but because swapping blocks (the function stalls kwin while waiting for the next vblank signal from your screen), things act a bit different (we process events between glFlush and glSwap to not loose to much time on waiting fot the next estimated vblank) As triple buffering is misdetected on resuming the compositor, you're suddenly in the non-blocking swap path (which may bypass the collision with mpv) - as you'll be w/o v'sync (as obviously glSwap doesn't have to wait here)
Hi Thomas, Thank you for the suggestion and the elaborate explanation. I changed that setting to "never". I hope this fixes it :) I will report back within a few weeks with my findings. If i haven't done that in - lets say - 3 weeks, then please do remind me :)
Just wondering, would it make sense for KWin to check the __GL_YIELD env variable and when it's set at USLEEP to just put tearing prevention on the "never" value by default? And probably warn the user that if it's changed, the behavior could have unexpected consequences? Or would that be too vendor specific?
(In reply to Mark from comment #12) > Just wondering, would it make sense for KWin to check the __GL_YIELD env > variable and when it's set at USLEEP to just put tearing prevention on the > "never" value by default? No ;-) The entire purpose of this complex system is to allow vertical synchronisation (so the screen doesn't "tear" on updates) We require __GL_YIELD to be USLEEP because otherwise the nvidia driver starts busy waits (you can see one core spike and dispite of other claims, hear your fan start off ;-) - ie. for efficiency reasons. Without triple buffering, you'll however always run into the shifted cycle with event processing between flush and swap. We'll have to figure why this is a problem in order to actually fix this bug (or blame nvidia =) A maybe better workaround on your side would be to enable triple buffering in the driver (after we determined that the shifted cycle *is* the trigger here)
> If i haven't done that in - lets say - 3 weeks, then please do remind me :) 3 weeks passed, here's the reminder :-)
Thank you for the reminder, Martin. I followed the tips given by Thomas and haven't observed the reported issue since then. However, having the tearing prevention set to never did present me with tearing (most notable when watching videos). So a few days ago i decided to go for the real solution (also suggested by Thomas) to enable triple buffering and re-enable tearing prevention in kwin. Videos seems to be playing smoothly now and no hangs in mpv at all.
We ("I") need to test double buffering on the nvidia blob, there're too many related bug reports :-(
Dear Bug Submitter, This bug has been stagnant for a long time. Could you help us out and re-test if the bug is valid in the latest version? I am setting the status to NEEDSINFO pending your response, please change the Status back to REPORTED when you respond. Thank you for helping us make KDE software even better for everyone!
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!