Kobo breaking my usb ports - Page 2

JSWolf · 12-29-2017, 04:14 PM

I plugged my H2O in, copied 600MB of files to it. Deleted the files and then ejected it I did this three times. I then plugged in my Fiio X3II (hi-res music player) and copied the same file to it. I deleted the files. Then I plugged my H2O in again and did the same just once.

No problem at all. I'm running the latest Windows 10 Home 64-bit.

Maybe it depends on the chipset of the USB ports. The laptop is using an IBM chipset for the USB ports.

Semwize · 12-29-2017, 04:40 PM

And maybe from the Kobo firmware. I'm talking about Mark6. There's another kernel and driver.

sjfan · 12-29-2017, 04:55 PM

If something can hang/break USB like that, it's a driver/hardware bug (with obvious security implications). Particular Kobo versions may be tickling it in a way that other things aren't, but ultimately it should be fixed at the driver level.

It's probably worth itemizing the USB controller and kernel versions for people seeing the problem, to see if the problematic hardware/drivers can be narrowed down.

FWIW, I've loaded thousands of books over dozens of connect/reconnects on my H2O with no problems (using Ubuntu versions from 10-16) on 2 machines with "Intel Corporation Wildcat Point-LP USB xHCI Controller" and "Intel Corporation 6 Series/C200 Series Chipset".

davidfor · 12-29-2017, 05:12 PM

Quote:

Originally Posted by geek1011

Yep, the first bit is right, other than that I don't have to restart the Kobo, just restart the computer or change usb ports.

The comment about restarting the Kobo was about having a defined starting point. If you don't, you don't truly know what is going on.

Quote:

I am just copying files, and sometimes updating the database (all in one transaction) when I need to tweak the home screen or update series metadata. I even tried copying a large dummy file, and it seems to happen sooner with many small files.

Restarting the Kobo does nothing, as the usb port stops working even with other usb devices until a reboot.

In this case, I was wondering if restarting the Kobo device between connections to the PC would prevent the problems occurring. If you think the next time you connect this problem is likely to happen, restarting the device first might prevent it.

compurandom · 12-29-2017, 07:09 PM

I had a problem with my kobo working unreliably on a usb port, changed usb ports a few times, eventually it stopped working at all on one particular port.

Some time later, I upgraded a hard drive and while I had the system open, I noticed that the cable for the usb port on the case had fallen off of the motherboard completely. It must have been partially seated when it was working unreliably.

GeoffR · 12-29-2017, 10:21 PM

I've used Debian 7 (wheezy) and 8 (jessie) on a couple of different ThinkPad laptops (currently Debian 8 on a T420), in the five years I've been connecting my Glo I've never encountered any sort of USB problems with any firmware version (currently 4.7.10413.)

(Edit: In case it matters, I'm still using the original cable that came with the Glo, but I have replaced the internal 2GB micro-SD card with an 8GB class-4 Sandisk card.)

geek1011 · 12-30-2017, 10:30 AM

I'm going to try this with FreeBSD later and see if it happens with it.

Also, this is not happening with any of my Minis (I have access to 2).

Semwize · 12-30-2017, 10:45 AM

I do not understand why write owners Mark4 and Mark5 that they have everything in order. When talking about Mark6.

DuckieTigger · 12-30-2017, 11:19 AM

Quote:

Originally Posted by Semwize

I do not understand why write owners Mark4 and Mark5 that they have everything in order. When talking about Mark6.

If they are running the same firmware it makes it very relevant. It is obviously a botched hardware or software implementation on the Kobo side. More likely software only as it happened after an update

Namenlos · 01-05-2018, 07:25 PM

Could be a dying sdcard. Put the sdcard in a external reader and dump everything with dd a few times, if the sdard is bad you should get the same or at least other errors. If not you at least have a backup and you know the sdcard is fine.

If the sdcard is bad you can use gddrescue and read from the beginning to the end and vice versa to recover most of it.

geek1011 · 01-05-2018, 08:06 PM

Quote:

Originally Posted by Namenlos

Could be a dying sdcard. Put the sdcard in a external reader and dump everything with dd a few times, if the sdard is bad you should get the same or at least other errors. If not you at least have a backup and you know the sdcard is fine.

If the sdcard is bad you can use gddrescue and read from the beginning to the end and vice versa to recover most of it.

The SD card is fine.

Sent from my Moto G5 using Tapatalk

Semwize · 01-06-2018, 03:16 AM

The SD card is replaced by a 32 gigabytes. With the old SD too.

For some reason it seems to me that it's the firmware of Mark6. Maybe I'm wrong.

12-29-2017, 04:14 PM	#16
JSWolf Resident Curmudgeon Posts: 74,037 Karma: 129333114 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	I plugged my H2O in, copied 600MB of files to it. Deleted the files and then ejected it I did this three times. I then plugged in my Fiio X3II (hi-res music player) and copied the same file to it. I deleted the files. Then I plugged my H2O in again and did the same just once. No problem at all. I'm running the latest Windows 10 Home 64-bit. Maybe it depends on the chipset of the USB ports. The laptop is using an IBM chipset for the USB ports. Last edited by JSWolf; 12-29-2017 at 04:17 PM.

12-29-2017, 10:21 PM	#21
GeoffR Wizard Posts: 3,821 Karma: 19162882 Join Date: Nov 2012 Location: Te Riu-a-Māui Device: Kobo Glo	I've used Debian 7 (wheezy) and 8 (jessie) on a couple of different ThinkPad laptops (currently Debian 8 on a T420), in the five years I've been connecting my Glo I've never encountered any sort of USB problems with any firmware version (currently 4.7.10413.) (Edit: In case it matters, I'm still using the original cable that came with the Glo, but I have replaced the internal 2GB micro-SD card with an 8GB class-4 Sandisk card.) Last edited by GeoffR; 12-29-2017 at 11:02 PM. Reason: ... original cable, replaced micro-SD ...

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12-29-2017, 04:40 PM	#17
Semwize Guru Posts: 873 Karma: 252902 Join Date: Jun 2016 Device: Kobo	And maybe from the Kobo firmware. I'm talking about Mark6. There's another kernel and driver.

12-29-2017, 04:55 PM	#18
sjfan Addict Posts: 281 Karma: 7724454 Join Date: Sep 2017 Location: Bethesda, MD, USA Device: Kobo Aura H20, Kobo Clara HD	If something can hang/break USB like that, it's a driver/hardware bug (with obvious security implications). Particular Kobo versions may be tickling it in a way that other things aren't, but ultimately it should be fixed at the driver level. It's probably worth itemizing the USB controller and kernel versions for people seeing the problem, to see if the problematic hardware/drivers can be narrowed down. FWIW, I've loaded thousands of books over dozens of connect/reconnects on my H2O with no problems (using Ubuntu versions from 10-16) on 2 machines with "Intel Corporation Wildcat Point-LP USB xHCI Controller" and "Intel Corporation 6 Series/C200 Series Chipset".

12-29-2017, 07:09 PM	#20
compurandom Guru Posts: 919 Karma: 417282 Join Date: Jun 2015 Device: kobo aura h2o, kobo forma	I had a problem with my kobo working unreliably on a usb port, changed usb ports a few times, eventually it stopped working at all on one particular port. Some time later, I upgraded a hard drive and while I had the system open, I noticed that the cable for the usb port on the case had fallen off of the motherboard completely. It must have been partially seated when it was working unreliably.

12-30-2017, 10:30 AM	#22
geek1011 Wizard Posts: 2,736 Karma: 6990705 Join Date: May 2016 Location: Ontario, Canada Device: Kobo Mini, Aura Edition 2 v1, Clara HD	I'm going to try this with FreeBSD later and see if it happens with it. Also, this is not happening with any of my Minis (I have access to 2).

12-30-2017, 10:45 AM	#23
Semwize Guru Posts: 873 Karma: 252902 Join Date: Jun 2016 Device: Kobo	I do not understand why write owners Mark4 and Mark5 that they have everything in order. When talking about Mark6.

01-05-2018, 07:25 PM	#25
Namenlos Enthusiast Posts: 37 Karma: 10 Join Date: Jul 2014 Device: Kobo Mini	Could be a dying sdcard. Put the sdcard in a external reader and dump everything with dd a few times, if the sdard is bad you should get the same or at least other errors. If not you at least have a backup and you know the sdcard is fine. If the sdcard is bad you can use gddrescue and read from the beginning to the end and vice versa to recover most of it.

01-06-2018, 03:16 AM	#27
Semwize Guru Posts: 873 Karma: 252902 Join Date: Jun 2016 Device: Kobo	The SD card is replaced by a 32 gigabytes. With the old SD too. For some reason it seems to me that it's the firmware of Mark6. Maybe I'm wrong.

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