7f139b7c4f
On a recent version of kernels, "intel_ipts" module will be used by companion
driver "ipts_surface". So, unload the module first on unloading whole IPTS
modules and load the module last on loading whole IPTS modules.
Otherwise, unloading "intel_ipts" will fail.
Unloading the module will automatically unload "intel_ipts" module but
I did not remove the line for clarity and for kernels that don't have
the companion driver ("ipts_surface").
On my 5.3 kernel:
$ lsmod | grep -e "Used by" -e "ipts"
Module Size Used by
ipts_surface 16384 0
intel_ipts 45056 1 ipts_surface
hid 143360 6 i2c_hid,usbhid,hid_multitouch,hid_sensor_hub,intel_ipts,hid_generic
mei 122880 5 mei_hdcp,intel_ipts,mei_me
i915 2273280 18 intel_ipts
Tested on kernel 5.3.12 and 4.19.85 that use the "ipts_surface" companion driver with IPTS lines
uncommented on sleep script.
62 lines
1.8 KiB
Bash
62 lines
1.8 KiB
Bash
#!/bin/bash
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case $1 in
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pre) # unload the modules before going to sleep
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# Disable bluetooth if no device is connected
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if ps cax | grep bluetoothd && ! bluetoothctl info; then
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bluetoothctl power off
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fi
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# handle wifi issues
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modprobe -r mwifiex_pcie;
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modprobe -r mwifiex;
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modprobe -r cfg80211;
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## IPTS: see notes below
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## > Remove IPTS from ME side
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#modprobe -r ipts_surface
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#modprobe -r intel_ipts
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#modprobe -r mei_hdcp
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#modprobe -r mei_me
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#modprobe -r mei
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## > Remove IPTS from i915 side
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#for i in $(find /sys/kernel/debug/dri -name i915_intel_ipts_cleanup); do echo 1 > $i; done
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;;
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post) # re-load modules after resume
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## IPTS: see notes below
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## > Load IPTS from i915 side
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#for i in $(find /sys/kernel/debug/dri -name i915_intel_ipts_init); do echo 1 > $i; done
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## > Load IPTS from ME side
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#modprobe mei
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#modprobe mei_me
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#modprobe mei_hdcp
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#modprobe intel_ipts
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#modprobe ipts_surface
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# Restart bluetooth
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if ps cax | grep bluetoothd; then
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bluetoothctl power on
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fi
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# handle wifi issues: complete cycle
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modprobe cfg80211;
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modprobe mwifiex;
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modprobe mwifiex_pcie;
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echo 1 > /sys/bus/pci/rescan
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if [ -x "$(command -v nmcli)" ] && [ "$(nmcli net)" = "enabled" ]; then
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nmcli net off
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nmcli net on
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fi
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;;
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esac
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# Notes:
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# - For IPTS, see
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# > https://github.com/jakeday/linux-surface/issues/544#issuecomment-519126757
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# for an explanation/discussion. We do not unload/reload modules for now as
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# the IPTS drivers should be able to resume/suspend without this. If you
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# experience any issues on suspend/resume, please file an appropriate issue or
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# join the discussion linked above so that we can fix it. As a temporary
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# workaround, you may want to uncomment the IPTS-related lines above.
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