[Bug 219514] PC does not resume from suspend, bisect points to btusb/mediatek

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219514

--- Comment #11 from Olivier Croquette (olivier@croquette.de) ---
I just tested with 6.12.8 and was able to resume from suspend 3 times in a row.
That looks good. However it took a long time to get the BT devices to work
again. From dmesg:

[  263.253098] PM: suspend exit
[  263.340683] pci_bus 0000:03: Allocating resources
[  263.348625] pci_bus 0000:03: Allocating resources
[  263.365801] r8169 0000:0b:00.0 enp11s0: Link is Down
[  263.386884] Bluetooth: hci0: HW/SW Version: 0x008a008a, Build Time:
20241106163512
[  263.395274] RTL8226B_RTL8221B 2.5Gbps PHY r8169-0-b00:00: attached PHY
driver (mii_bus:phy_addr=r8169-0-b00:00, irq=MAC)
[  263.575549] r8169 0000:0b:00.0 enp11s0: Link is Down
[  266.524999] r8169 0000:0b:00.0 enp11s0: Link is Up - 1Gbps/Full - flow
control rx/tx
[  284.169397] Bluetooth: hci0: Device setup in 20437679 usecs
[  284.169402] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection
command is advertised, but not supported.
[  284.444262] Bluetooth: hci0: AOSP extensions version v1.00
[  284.444270] Bluetooth: hci0: AOSP quality report is supported
[  284.444433] Bluetooth: MGMT ver 1.23
[  292.361312] input: Logitech Wireless Mouse MX Master 3 as
/devices/virtual/misc/uhid/.../input/input24
[  292.361454] logitech-hidpp-device input,hidraw4: BLUETOOTH HID v0.15
Keyboard [Logitech Wireless Mouse MX Master 3]
[  292.387566] logitech-hidpp-device: HID++ 4.5 device connected.


So it takes around 20 seconds to setup hci0, and 8 more seconds to find the
mouse (maybe because it was in sleep mode too though).

When I resume I see a black screen for a long time, maybe the 20 seconds.

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