Control: tags -1 + moreinfo Hi,
On Wed, May 01, 2024 at 10:06:51AM +0800, Gedalya wrote: > Package: src:linux > Version: 6.7.12-1 > Severity: normal > > Hello, > > I have a computer with an Intel i3-9100 CPU, using the integrated graphics, > no graphic session running, and a monitor plugged in to the DVI port. > > The following command executed upon startup: > setterm --term linux --blank 1 > > After one minute of console inactivity the monitor is actually suspended, and > I get the following effect every ~20 seconds: > > # turbostat --interval 1 --show > PkgWatt,CorWatt,Avg_MHz,Busy%,Bzy_MHz,IPC,IRQ,CoreTmp,PkgTmp,POLL,POLL% > > Avg_MHz Busy% Bzy_MHz IPC IRQ POLL POLL% CoreTmp PkgTmp > PkgWatt CorWatt > 2 0.20 800 0.38 57 0 0.00 31 31 0.35 > 0.11 > 1 0.11 800 0.22 9 0 0.00 30 31 0.35 > 0.11 > 2 0.28 800 0.26 16 0 0.00 30 > 1 0.08 800 0.30 8 0 0.00 31 > 3 0.34 800 0.55 24 0 0.00 31 > Avg_MHz Busy% Bzy_MHz IPC IRQ POLL POLL% CoreTmp PkgTmp > PkgWatt CorWatt > 3233 81.25 3978 0.06 3782 142889 78.95 35 34 19.93 > 19.78 > 3396 85.32 3980 0.06 2731 36309 78.63 34 34 19.91 > 19.77 > 3171 79.77 3975 0.06 223 35550 79.02 32 > 3170 79.67 3979 0.06 212 35545 79.05 33 > 3191 80.23 3977 0.06 616 35485 79.01 35 > Avg_MHz Busy% Bzy_MHz IPC IRQ POLL POLL% CoreTmp PkgTmp > PkgWatt CorWatt > 2 0.14 1397 0.31 57 0 0.00 32 32 0.38 > 0.13 > 1 0.08 1331 0.17 10 0 0.00 30 32 0.38 > 0.13 > 2 0.21 1142 0.22 16 0 0.00 30 > 1 0.05 2129 0.22 10 0 0.00 31 > 3 0.20 1494 0.47 21 0 0.00 32 > > Or, with .5 second interval: > > Avg_MHz Busy% Bzy_MHz IPC IRQ POLL POLL% CoreTmp PkgTmp > PkgWatt CorWatt > 3 0.32 800 0.43 43 0 0.00 30 30 0.39 > 0.16 > 2 0.27 800 0.31 11 0 0.00 29 30 0.39 > 0.16 > 1 0.14 800 0.27 9 0 0.00 28 > 5 0.62 800 0.28 18 0 0.00 29 > 2 0.26 800 0.98 5 0 0.00 30 > Avg_MHz Busy% Bzy_MHz IPC IRQ POLL POLL% CoreTmp PkgTmp > PkgWatt CorWatt > 1373 35.07 3912 0.06 752 31036 34.45 38 38 8.30 > 8.11 > 1370 34.97 3918 0.06 51 7723 34.44 38 38 8.29 > 8.10 > 1374 35.36 3886 0.06 533 7885 34.29 37 > 1372 35.06 3914 0.06 51 7719 34.48 37 > 1371 34.88 3932 0.06 117 7709 34.48 38 > Avg_MHz Busy% Bzy_MHz IPC IRQ POLL POLL% CoreTmp PkgTmp > PkgWatt CorWatt > 3626 90.58 4003 0.06 2081 80119 88.33 39 39 21.97 > 21.82 > 3565 89.12 4000 0.06 120 19931 88.44 39 39 21.97 > 21.82 > 3788 94.46 4011 0.06 1503 20358 88.02 38 > 3565 89.13 4000 0.06 123 19930 88.43 39 > 3584 89.59 4001 0.06 335 19900 88.42 39 > Avg_MHz Busy% Bzy_MHz IPC IRQ POLL POLL% CoreTmp PkgTmp > PkgWatt CorWatt > 1477 36.91 4003 0.06 987 31849 35.03 32 32 9.67 > 9.46 > 1417 35.45 3998 0.06 56 7922 35.11 30 32 9.67 > 9.47 > 1639 40.76 4022 0.06 705 8101 34.92 29 > 1420 35.54 3996 0.06 64 7920 35.09 30 > 1434 35.90 3994 0.06 162 7906 35.06 32 > Avg_MHz Busy% Bzy_MHz IPC IRQ POLL POLL% CoreTmp PkgTmp > PkgWatt CorWatt > 2 0.23 925 0.46 22 0 0.00 30 30 0.36 > 0.11 > 2 0.16 1059 0.30 7 0 0.00 29 30 0.36 > 0.11 > 1 0.07 1036 0.30 2 0 0.00 29 > 4 0.47 867 0.26 12 0 0.00 30 > 2 0.20 911 1.09 1 0 0.00 30 > > > Nothing is seen in `top`. I can see a brief ~20 watt increase in power > consuption reported by the UPS. > > There is no issue while the display is active. > If the monitor is unplugged these spikes occur every 20 seconds, even if no > blanking/suspend is enabled. > As long as the monitor is plugged in, and the display is not suspended on the > computer side, the issue doesn't occur even if the monitor is powered off. > > With the i915 driver blacklisted the display can not be suspended, it is only > blanked. The CPU spikes do not occur at all, whether the display is active, > blanked or unplugged. > > The behavior is the same with linux 6.1.85 from bookworm. > > # dmesg | grep i915 > [ 3.681513] i915 0000:00:02.0: [drm] VT-d active for gfx access > [ 3.681610] i915 0000:00:02.0: vgaarb: deactivate vga console > [ 3.681642] i915 0000:00:02.0: [drm] Using Transparent Hugepages > [ 3.682781] i915 0000:00:02.0: vgaarb: VGA decodes changed: > olddecodes=io+mem,decodes=io+mem:owns=io+mem > [ 3.683974] i915 0000:00:02.0: firmware: direct-loading firmware > i915/kbl_dmc_ver1_04.bin > [ 3.684936] i915 0000:00:02.0: [drm] Finished loading DMC firmware > i915/kbl_dmc_ver1_04.bin (v1.4) > [ 4.092652] i915 0000:00:02.0: [drm] [ENCODER:94:DDI A/PHY A] failed to > retrieve link info, disabling eDP > [ 4.118882] [drm] Initialized i915 1.6.0 20230929 for 0000:00:02.0 on > minor 0 > [ 4.121193] i915 display info: display version: 9 > [ 4.121195] i915 display info: cursor_needs_physical: no > [ 4.121196] i915 display info: has_cdclk_crawl: no > [ 4.121197] i915 display info: has_cdclk_squash: no > [ 4.121197] i915 display info: has_ddi: yes > [ 4.121198] i915 display info: has_dp_mst: yes > [ 4.121199] i915 display info: has_dsb: no > [ 4.121200] i915 display info: has_fpga_dbg: yes > [ 4.121200] i915 display info: has_gmch: no > [ 4.121201] i915 display info: has_hotplug: yes > [ 4.121202] i915 display info: has_hti: no > [ 4.121203] i915 display info: has_ipc: yes > [ 4.121203] i915 display info: has_overlay: no > [ 4.121204] i915 display info: has_psr: yes > [ 4.121205] i915 display info: has_psr_hw_tracking: yes > [ 4.121205] i915 display info: overlay_needs_physical: no > [ 4.121206] i915 display info: supports_tv: no > [ 4.121207] i915 display info: has_hdcp: yes > [ 4.121208] i915 display info: has_dmc: yes > [ 4.121208] i915 display info: has_dsc: no > [ 4.575203] fbcon: i915drmfb (fb0) is primary device > [ 4.602129] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device Can you please test if you have the same behaviour with recent upstream kernels? For instance test with 6.8.9-1 in unstable, or if you can build upstream stable version 6.8.10, 6.9.1. Regards, Salvatore
