https://bugs.kde.org/show_bug.cgi?id=527377
Bug ID: 527377
Summary: kwin thread hangs as it wakes up the dgpu to active
state
Classification: Plasma
Product: kwin
Version First 6.8.0
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: performance
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Compositor hangs for half a second to a second as it waits for the dGPU to wake
up. Happens very frequently (when gpu autosuspend delay is low, then it can
happen a few times a minute).
Semi-workaround seems to be to increase the autosuspend delay:
echo 30000 | sudo tee
/sys/bus/pci/devices/0000:03:00.0/power/autosuspend_delay_ms
Marking this as major, because disabling autosuspend on a laptop greatly lowers
the battery life, increases heat and noise.
Issues noticed after very recent Arch update.
Journal log:
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: [drm] PCIE GART of 512M
enabled (table at 0x00000082FEB00000).
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: PSP is resuming...
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: reserve 0xa00000 from
0x82fd000000 for PSP TMR
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: RAS: optional ras ta ucode
is not available
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: SECUREDISPLAY: optional
securedisplay ta ucode is not available
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: SMU is resuming...
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: SMU is resumed
successfully!
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: kiq ring mec 2 pipe 1 q 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: [drm] DMUB hardware
initialized: version=0x02020022
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: [drm] Cannot find any crtc
or sizes
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring gfx_0.0.0 uses VM inv
eng 0 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring gfx_0.1.0 uses VM inv
eng 1 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.0.0 uses VM inv
eng 4 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.1.0 uses VM inv
eng 5 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.2.0 uses VM inv
eng 6 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.3.0 uses VM inv
eng 7 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.0.1 uses VM inv
eng 8 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.1.1 uses VM inv
eng 9 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.2.1 uses VM inv
eng 10 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.3.1 uses VM inv
eng 11 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring kiq_0.2.1.0 uses VM
inv eng 12 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring sdma0 uses VM inv eng
13 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring sdma1 uses VM inv eng
14 on hub 0
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring vcn_dec_0 uses VM inv
eng 0 on hub 8
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring vcn_enc_0.0 uses VM
inv eng 1 on hub 8
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring vcn_enc_0.1 uses VM
inv eng 4 on hub 8
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: ring jpeg_dec uses VM inv
eng 5 on hub 8
Oct 18 22:25:48 laptop kernel: amdgpu 0000:03:00.0: [drm] Cannot find any crtc
or sizes
Oct 18 22:25:48 laptop kwin_wayland[1152]: The main thread was hanging
temporarily!
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170359]
(dw_udev_watch ) udev event detected
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
Udev_Event_Detail
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
prop_subsystem: drm
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
prop_action: change
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
prop_connector: (null)
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
prop_devname: /dev/dri/card1
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
prop_devmode: (null)
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
prop_hotplug: 1
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
prop_major: 226
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
prop_minor: 1
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
sysname: card1
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
syspath:
/sys/devices/pci0000:00/0000:00:01.1/0000:01:00.0/0000:02:00.0/0000:03:00.0/drm/card1
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170540]
attr_name: (null)
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.170629]
(dw_pause_retaking_if_suspended) Allowing time for events to coalesce: Sleeping
for 100 milliseconds
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.270962]
(dw_udev_drain ) Drained 1 additional queued udev event(s)
Oct 18 22:25:48 laptop org_kde_powerdevil[1295]: [ 1406][26729.334952]
(dw_udev_drain ) Drained 0 additional queued udev event(s)
Oct 18 22:26:55 laptop kernel: amdgpu 0000:03:00.0: [drm] PCIE GART of 512M
enabled (table at 0x00000082FEB00000).
Oct 18 22:26:55 laptop kernel: amdgpu 0000:03:00.0: PSP is resuming...
Oct 18 22:26:55 laptop kernel: amdgpu 0000:03:00.0: reserve 0xa00000 from
0x82fd000000 for PSP TMR
Oct 18 22:26:55 laptop kernel: amdgpu 0000:03:00.0: RAS: optional ras ta ucode
is not available
Oct 18 22:26:55 laptop kernel: amdgpu 0000:03:00.0: SECUREDISPLAY: optional
securedisplay ta ucode is not available
Oct 18 22:26:55 laptop kernel: amdgpu 0000:03:00.0: SMU is resuming...
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: SMU is resumed
successfully!
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: kiq ring mec 2 pipe 1 q 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: [drm] DMUB hardware
initialized: version=0x02020022
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: [drm] Cannot find any crtc
or sizes
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring gfx_0.0.0 uses VM inv
eng 0 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring gfx_0.1.0 uses VM inv
eng 1 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.0.0 uses VM inv
eng 4 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.1.0 uses VM inv
eng 5 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.2.0 uses VM inv
eng 6 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.3.0 uses VM inv
eng 7 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.0.1 uses VM inv
eng 8 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.1.1 uses VM inv
eng 9 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.2.1 uses VM inv
eng 10 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring comp_1.3.1 uses VM inv
eng 11 on hub 0
Oct 18 22:26:56 laptop kernel: amdgpu 0000:03:00.0: ring kiq_0.2.1.0 uses VM
inv eng 12 on hub 0
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