Clara HD Kobo Clara HD randomly ejecting

JDesat · 06-28-2021, 10:12 PM

Hey,
I just got a new laptop (never had a problem with the old one) and now my Kobo Clara is randomly ejecting after being plugged in for a short period of time. Sometimes in the middle of Calibre updating metadata, sometimes when nothing is happening. Anyone else have a problem like this? If so, does anyone know how to fix it? I'm honestly wondering if it's a Windows setting of some kind that was set differently on my old laptop... Maybe something to do with external drives or something?

Hopefully someone knows something that will help!

gbm · 06-28-2021, 10:35 PM

Quote:

Originally Posted by JDesat

Hey,
I just got a new laptop (never had a problem with the old one) and now my Kobo Clara is randomly ejecting after being plugged in for a short period of time. Sometimes in the middle of Calibre updating metadata, sometimes when nothing is happening. Anyone else have a problem like this? If so, does anyone know how to fix it? I'm honestly wondering if it's a Windows setting of some kind that was set differently on my old laptop... Maybe something to do with external drives or something?

Hopefully someone knows something that will help!

My Clara does not like the usb2--cycling between mounted and unmounted--ports in my new motherboard, works using the usb3 ports.
Those usb2 ports work with the keyboard and mouse but not with my usb tv adapter.
bernie

My system
Linux Mint 20.1
B450M PRO-M2

davidfor · 06-28-2021, 10:48 PM

My Glo HD does something like that with my main laptop. All the other devices are OK, but, it drops off when calibre is looking for books. Plug it into another laptop and it works perfectly. It wasn't always the case. It was my main device before the Clara HD came along. Sometime after that, it stopped working. I assume it is some combination of Windows update and firmware, but, have never bothered to work it out.

raygj · 06-29-2021, 02:13 AM

Quote:

Originally Posted by davidfor

My Glo HD does something like that with my main laptop. All the other devices are OK, but, it drops off when calibre is looking for books. Plug it into another laptop and it works perfectly. It wasn't always the case. It was my main device before the Clara HD came along. Sometime after that, it stopped working. I assume it is some combination of Windows update and firmware, but, have never bothered to work it out.

just a thought.
check this particular laptops USB ports power manager saved settings...this laptop could be powering off the USB ports after a set time to conserve the laptops battery life.

davidfor · 06-29-2021, 02:58 AM

Quote:

Originally Posted by raygj

just a thought.
check this particular laptops USB ports power manager saved settings...this laptop could be powering off the USB ports after a set time to conserve the laptops battery life.

I doubt that is it. It works perfectly with all my other Kobo ereaders. Including if I unplug the Glo HD and plugin one of the others in.

I have had an issue with the USB port that can be configured for charging when the laptop is powered down. But, that was with the Aura H2O and a particular cable. I'm not sure what the state of it is as I don't usually use that port for the ereaders.

JDesat · 06-29-2021, 09:02 AM

I'm on a Windows 10 machine. I found a setting that MIGHT be what I'm looking for - it hasn't ejected like that since, but I've only had it plugged in a few times and it doesn't happen every time.

In control panel I went to 'Devices' then 'USB' and there's a setting that says "Stop devices when screen is off to help save battery. If you're having problems with connected devices, clear the checkbox."

I don't know that this will help, since I'm running with the laptop plugged in, not on battery, but we'll see.

JDesat · 06-30-2021, 12:53 AM

Well, it wasn't that Windows setting, since it ejected on me again earlier tonight. Still not sure what I can do.

DrChiper · 06-30-2021, 04:34 AM

I have experienced this problem very recently also (on new Clara and Libra devices) and found the Windows 10 setting below.
Do not know whether this will help always as there are other possibilities:

Recent Motherboard driver updates
Recent Windows 10 driver updates
Recent Kobo firrmware updates
Suddenly defective USB ports
etc.

For the moment I solved my issues with the above Windows 10 setting combined with a powered USB Hub.
Why? Because this week suddenly also my external USB drives, which are powered by the USB itself, stopped working. So I suspected that the USB ports somehow could not deliver enough power anymore to make the attached USB mass storage devices work.
Note: most BIOSs have a setting to enable the support of USB mass storage devices. It cannot harm to inspect that setting too.

compurandom · 06-30-2021, 02:29 PM

Is it ejecting or getting suddenly disconnected If the latter, you could have a usb cable that is wearing out or something.

JDesat · 06-30-2021, 04:26 PM

I think it's ejecting because there's no issues the next time I plug it back in. The 'scan drive for errors' thing doesn't come up.

DrChiper, I looked but there isn't a USB option when I go to advanced power settings. I have only like 4 things listed there and none have a sub-section that is USB related either. Thanks though!

DrChiper · 06-30-2021, 04:42 PM

Quote:

Originally Posted by JDesat

DrChiper, I looked but there isn't a USB option when I go to advanced power settings. I have only like 4 things listed there and none have a sub-section that is USB related either. Thanks though!

Using the command prompt, try using the following commands:

Code:

control.exe powercfg.cpl,,3

This will show the Power Options Advanced Settings.

JDesat · 06-30-2021, 06:35 PM

That opened the same power options list I had been at before... no USB option there.

DNSB · 06-30-2021, 07:04 PM

Quote:

Originally Posted by JDesat

That opened the same power options list I had been at before... no USB option there.

Once you have the control applet open, did you click on Change plan settings for the active plan? In the windows that opened when you did so, did you click on Change advanced power settings?

What flavour of Windows 10 are you running?

JDesat · 06-30-2021, 10:46 PM

@DNSB Yes, that's exactly what I did, but USB wasn't an option.

I'm running:
Edition Windows 10 Home
Version 20H2
Installed on ‎2021-‎06-‎25
OS build 19042.1052
Experience Windows Feature Experience Pack 120.2212.2020.0

JDesat · 07-01-2021, 01:01 AM

I just found another way (hopefully) to do what the power management option I don't have on my computer does. In Device Manager I went to the USB section and in the properties there I could go to 'Power Management' and shut off the 'Allow the computer to turn off this device to save power' option. I'll see if that works.

EDIT: Changing that setting didn't fix the issue... just got ejected again.

06-28-2021, 10:12 PM	#1
JDesat Connoisseur Posts: 99 Karma: 32768 Join Date: Dec 2012 Device: Kobo Glo HD, Kobo Clara HD	Kobo Clara HD randomly ejecting Hey, I just got a new laptop (never had a problem with the old one) and now my Kobo Clara is randomly ejecting after being plugged in for a short period of time. Sometimes in the middle of Calibre updating metadata, sometimes when nothing is happening. Anyone else have a problem like this? If so, does anyone know how to fix it? I'm honestly wondering if it's a Windows setting of some kind that was set differently on my old laptop... Maybe something to do with external drives or something? Hopefully someone knows something that will help!

06-30-2021, 04:34 AM	#8
DrChiper Bookish Posts: 1,016 Karma: 2003162 Join Date: Jun 2011 Device: PC, t1, t2, t3, Clara BW, Clara HD, Libra 2, Libra Color, Nxtpaper 11	I have experienced this problem very recently also (on new Clara and Libra devices) and found the Windows 10 setting below. Do not know whether this will help always as there are other possibilities: Recent Motherboard driver updates Recent Windows 10 driver updates Recent Kobo firrmware updates Suddenly defective USB ports etc. For the moment I solved my issues with the above Windows 10 setting combined with a powered USB Hub. Why? Because this week suddenly also my external USB drives, which are powered by the USB itself, stopped working. So I suspected that the USB ports somehow could not deliver enough power anymore to make the attached USB mass storage devices work. Note: most BIOSs have a setting to enable the support of USB mass storage devices. It cannot harm to inspect that setting too. Attached Thumbnails Last edited by DrChiper; 06-30-2021 at 04:37 AM.

06-30-2021, 10:46 PM	#14
JDesat Connoisseur Posts: 99 Karma: 32768 Join Date: Dec 2012 Device: Kobo Glo HD, Kobo Clara HD	@DNSB Yes, that's exactly what I did, but USB wasn't an option. I'm running: Edition Windows 10 Home Version 20H2 Installed on ‎2021-‎06-‎25 OS build 19042.1052 Experience Windows Feature Experience Pack 120.2212.2020.0 Last edited by JDesat; 07-01-2021 at 12:56 AM. Reason: Edit

07-01-2021, 01:01 AM	#15
JDesat Connoisseur Posts: 99 Karma: 32768 Join Date: Dec 2012 Device: Kobo Glo HD, Kobo Clara HD	I just found another way (hopefully) to do what the power management option I don't have on my computer does. In Device Manager I went to the USB section and in the properties there I could go to 'Power Management' and shut off the 'Allow the computer to turn off this device to save power' option. I'll see if that works. EDIT: Changing that setting didn't fix the issue... just got ejected again. Last edited by JDesat; 07-01-2021 at 01:07 AM. Reason: Update

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06-28-2021, 10:48 PM	#3
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	My Glo HD does something like that with my main laptop. All the other devices are OK, but, it drops off when calibre is looking for books. Plug it into another laptop and it works perfectly. It wasn't always the case. It was my main device before the Clara HD came along. Sometime after that, it stopped working. I assume it is some combination of Windows update and firmware, but, have never bothered to work it out.

06-29-2021, 09:02 AM	#6
JDesat Connoisseur Posts: 99 Karma: 32768 Join Date: Dec 2012 Device: Kobo Glo HD, Kobo Clara HD	I'm on a Windows 10 machine. I found a setting that MIGHT be what I'm looking for - it hasn't ejected like that since, but I've only had it plugged in a few times and it doesn't happen every time. In control panel I went to 'Devices' then 'USB' and there's a setting that says "Stop devices when screen is off to help save battery. If you're having problems with connected devices, clear the checkbox." I don't know that this will help, since I'm running with the laptop plugged in, not on battery, but we'll see.

06-30-2021, 12:53 AM	#7
JDesat Connoisseur Posts: 99 Karma: 32768 Join Date: Dec 2012 Device: Kobo Glo HD, Kobo Clara HD	Well, it wasn't that Windows setting, since it ejected on me again earlier tonight. Still not sure what I can do.

06-30-2021, 02:29 PM	#9
compurandom Wizard Posts: 1,011 Karma: 500000 Join Date: Jun 2015 Device: Rocketbook, kobo aura h2o, kobo forma, kobo libra color	Is it ejecting or getting suddenly disconnected If the latter, you could have a usb cable that is wearing out or something.

06-30-2021, 04:26 PM	#10
JDesat Connoisseur Posts: 99 Karma: 32768 Join Date: Dec 2012 Device: Kobo Glo HD, Kobo Clara HD	I think it's ejecting because there's no issues the next time I plug it back in. The 'scan drive for errors' thing doesn't come up. DrChiper, I looked but there isn't a USB option when I go to advanced power settings. I have only like 4 things listed there and none have a sub-section that is USB related either. Thanks though!

06-30-2021, 06:35 PM	#12
JDesat Connoisseur Posts: 99 Karma: 32768 Join Date: Dec 2012 Device: Kobo Glo HD, Kobo Clara HD	That opened the same power options list I had been at before... no USB option there.

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