Hi,

yes – I meant charging the phone. Today I found the reason in the log files. The problem only occurs with an Xperia 10 VI. Other phones work well with the same caple.

Jul 07 12:05:24 hongkong boltd[1131]: probing: timeout, done: [2000805] 
(2000000)
Jul 07 12:05:24 hongkong kernel: usb 5-1: New USB device found, idVendor=0fce, 
idProduct=020e, bcdDevice= 5.10
Jul 07 12:05:24 hongkong kernel: usb 5-1: New USB device strings: Mfr=1, 
Product=2, SerialNumber=3
Jul 07 12:05:24 hongkong kernel: usb 5-1: Product: XQ-ES54
Jul 07 12:05:24 hongkong kernel: usb 5-1: Manufacturer: Sony
Jul 07 12:05:24 hongkong kernel: usb 5-1: SerialNumber: HQ645N0837
Jul 07 12:05:24 hongkong boltd[1131]: probing: started [1000]
Jul 07 12:05:24 hongkong plasmashell[1840]: The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce. Jul 07 12:05:25 hongkong plasmashell[1840]: The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce.
Jul 07 12:05:26 hongkong boltd[1131]: probing: timeout, done: [2001331] 
(2000000)
Jul 07 12:05:36 hongkong kernel: usb 5-1: USB disconnect, device number 95
Jul 07 12:05:36 hongkong kernel: usb 5-1: new high-speed USB device number 96 
using xhci_hcd
Jul 07 12:05:36 hongkong kernel: usb 5-1: New USB device found, idVendor=0fce, 
idProduct=020e, bcdDevice= 5.10
Jul 07 12:05:36 hongkong kernel: usb 5-1: New USB device strings: Mfr=1, 
Product=2, SerialNumber=3
Jul 07 12:05:36 hongkong kernel: usb 5-1: Product: XQ-ES54
Jul 07 12:05:36 hongkong kernel: usb 5-1: Manufacturer: Sony
Jul 07 12:05:36 hongkong kernel: usb 5-1: SerialNumber: HQ645N0837
Jul 07 12:05:36 hongkong boltd[1131]: probing: started [1000]
Jul 07 12:05:36 hongkong plasmashell[1840]: The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce.
Jul 07 12:05:36 hongkong kernel: usb 5-1: USB disconnect, device number 96
Jul 07 12:05:37 hongkong kernel: usb 5-1: new high-speed USB device number 97 
using xhci_hcd
Jul 07 12:05:37 hongkong kernel: usb 5-1: Device not responding to setup 
address.
Jul 07 12:05:37 hongkong kernel: usb 5-1: Device not responding to setup 
address.
Jul 07 12:05:37 hongkong kernel: usb 5-1: device not accepting address 97, 
error -71
Jul 07 12:05:37 hongkong plasmashell[1840]: The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce.
Jul 07 12:05:37 hongkong kernel: usb 5-1: new high-speed USB device number 98 
using xhci_hcd
Jul 07 12:05:38 hongkong kernel: usb 5-1: New USB device found, idVendor=0fce, 
idProduct=020e, bcdDevice= 5.10
Jul 07 12:05:38 hongkong kernel: usb 5-1: New USB device strings: Mfr=1, 
Product=2, SerialNumber=3
Jul 07 12:05:38 hongkong kernel: usb 5-1: Product: XQ-ES54
Jul 07 12:05:38 hongkong kernel: usb 5-1: Manufacturer: Sony
Jul 07 12:05:38 hongkong kernel: usb 5-1: SerialNumber: HQ645N0837
Jul 07 12:05:38 hongkong plasmashell[1840]: The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce. Jul 07 12:05:38 hongkong plasmashell[1840]: The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce.
Jul 07 12:05:39 hongkong kernel: usb 5-1: USB disconnect, device number 98
Jul 07 12:05:39 hongkong kernel: usb 5-1: new high-speed USB device number 99 
using xhci_hcd
Jul 07 12:05:39 hongkong kernel: usb 5-1: New USB device found, idVendor=0fce, 
idProduct=020e, bcdDevice= 5.10
Jul 07 12:05:39 hongkong kernel: usb 5-1: New USB device strings: Mfr=1, 
Product=2, SerialNumber=3
Jul 07 12:05:39 hongkong kernel: usb 5-1: Product: XQ-ES54
Jul 07 12:05:39 hongkong kernel: usb 5-1: Manufacturer: Sony
Jul 07 12:05:39 hongkong kernel: usb 5-1: SerialNumber: HQ645N0837
Jul 07 12:05:39 hongkong plasmashell[1840]: The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce. Jul 07 12:05:40 hongkong plasmashell[1840]: The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce.
Jul 07 12:05:42 hongkong boltd[1131]: probing: timeout, done: [2876241] 
(2000000)
Jul 07 12:06:00 hongkong kernel: usb 5-1: USB disconnect, device number 99
Jul 07 12:06:00 hongkong kernel: usb 5-1: new high-speed USB device number 100 
using xhci_hcd
Jul 07 12:06:00 hongkong kernel: usb 5-1: New USB device found, idVendor=0fce, 
idProduct=020e, bcdDevice= 5.10
Jul 07 12:06:00 hongkong kernel: usb 5-1: New USB device strings: Mfr=1, 
Product=2, SerialNumber=3
Jul 07 12:06:00 hongkong kernel: usb 5-1: Product: XQ-ES54
Jul 07 12:06:00 hongkong kernel: usb 5-1: Manufacturer: Sony
Jul 07 12:06:00 hongkong kernel: usb 5-1: SerialNumber: HQ645N0837
Jul 07 12:06:00 hongkong boltd[1131]: probing: started [1000]
Jul 07 12:06:01 hongkong kernel: usb 5-1: USB disconnect, device number 100
Jul 07 12:06:01 hongkong kernel: usb 5-1: new high-speed USB device number 101 
using xhci_hcd
Jul 07 12:06:01 hongkong kernel: usb 5-1: New USB device found, idVendor=0fce, 
idProduct=020e, bcdDevice= 5.10
Jul 07 12:06:01 hongkong kernel: usb 5-1: New USB device strings: Mfr=1, 
Product=2, SerialNumber=3
Jul 07 12:06:01 hongkong kernel: usb 5-1: Product: XQ-ES54
Jul 07 12:06:01 hongkong kernel: usb 5-1: Manufacturer: Sony
Jul 07 12:06:01 hongkong kernel: usb 5-1: SerialNumber: HQ645N0837
...

Any ide how to solve the problem?

Thanks: Michael

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