Can't install w/o computer crashing. manual power cycle required

ScottRKahler · 07-03-2018, 10:51 PM

Steps performed
1. installed Calibre from the repository.
got "QGtkStyle could not resolve GTK"

2. Reinstalled ubuntu from a fresh iso
Added ssh and TightVNC

3. looked at the install instructions.

4. Started to check for libraries and versions.

5. installed locate to assist with looking.

6. completed libraries and versions - all where above the minimum versions.

7. Installed using sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin. install was successful.

8. ran: scott@scott-desktop:~$ Calibre
Received: QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries. Then system froze. I needed to unplug the power from the system to restart it.

9. Checked Forum:
found "https://www.mobileread.com/forums/showthread.php?t=296118&highlight=QGtkStyle+GTK+li braries."
tried sudo calibre
system froze - must unplug from wall outlet.

10. checked "https://bugs.launchpad.net/calibre/+bug/1740020"
found: I'm using Ubutun 17.10 mate, I have the same issue. Changing the environment variable did not work.

peter@Talesian:/opt/calibre/bin$ CALIBRE_USE_SYSTEM_THEME=1 calibre
QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries.

peter@Talesian:/opt/calibre/bin$ CALIBRE_USE_SYSTEM_THEME=0 calibre
QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries.

Kovid Goyal (kovid) wrote on 2018-04-07: #4
That value of the environment variable is irrelevant, calibre checks for its existence.

So this means I need to comment it out? I am not sure what to change and how to change it.

11.
checked: "https://manual.calibre-ebook.com/customize.html#environment-variables"
Found: CALIBRE_USE_SYSTEM_THEME - By default, on Linux, calibre uses its own builtin Qt style. This is to avoid crashes and hangs caused by incompatibilities between the version of Qt calibre is built against and the system Qt. The downside is that calibre may not follow the system look and feel. If you set this environment variable on Linux, it will cause calibre to use the system theme – beware of crashes and hangs.

12. ran ran env | grep CALIBRE and got no results.

13. uninstalled using scott@scott-desktop:~$ sudo calibre-uninstall.
it was removed

14. downloaded binary from: https://download.calibre-ebook.com/3...6.1-x86_64.txz
Ran sudo mkdir -p /opt/calibre && sudo rm -rf /opt/calibre/* && sudo tar xvf /home/scott/downloads/calibre-3.26.1-x86_64.txz -C /opt/calibre && sudo /opt/calibre/calibre_postinstall
Install completed

15. Ran Calibre
Got QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries.
QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries.
System froze again. removed power

I have not the details of my steps saved if you need them. I am at a loss. I don't know what to do. I am pretty confident I did everything correctly. However, I am kind of new with Linux. I don' know how to change, check or set Environment Variables. I love this software so much. It is very turnkey on windows but I would like for it to be on my linux box. I have gotten it to work in previous versions of linux, 16.04, I think, maybe. Any help would be thankful.

kovidgoyal · 07-04-2018, 01:38 AM

If your entire system is freezing it is likely an issue with your graphics card drivers. You can probably get it to work by changing the driver. Typically in Linux there are multiple drivers available for any given graphics card, proprietary and open source versions. Try switching between them. Or fallback to the defult VESA mode graphics driver (which is slow but suitable for most everyday tasks)

ScottRKahler · 07-05-2018, 01:14 AM

Thank you, I'll try that. Ok I switched to the proprietary driver and it stopped lockign up the system. However, I still get the same error. Anything else you can do to help?

ScottRKahler · 07-05-2018, 01:15 AM

maybe I lied

ScottRKahler · 07-05-2018, 01:17 AM

I can ssh to reboot the box but, it takes a long time. I don't know if that helps at all.

ScottRKahler · 07-05-2018, 01:30 AM

Do you have a resource for setting VESA Graphics mode? I don't know how.

ScottRKahler · 07-05-2018, 01:39 AM

I think I got it working. I went into GUI for my nvidia graphics driver. changed the settings to enhance application settings. It started to work. Testing some more.

07-03-2018, 10:51 PM	#1
ScottRKahler Member Posts: 10 Karma: 10 Join Date: Jul 2018 Device: Moon Reader Pro	Can't install w/o computer crashing. manual power cycle required Steps performed 1. installed Calibre from the repository. got "QGtkStyle could not resolve GTK" 2. Reinstalled ubuntu from a fresh iso Added ssh and TightVNC 3. looked at the install instructions. 4. Started to check for libraries and versions. 5. installed locate to assist with looking. 6. completed libraries and versions - all where above the minimum versions. 7. Installed using sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh \| sudo sh /dev/stdin. install was successful. 8. ran: scott@scott-desktop:~$ Calibre Received: QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries. Then system froze. I needed to unplug the power from the system to restart it. 9. Checked Forum: found "https://www.mobileread.com/forums/showthread.php?t=296118&highlight=QGtkStyle+GTK+li braries." tried sudo calibre system froze - must unplug from wall outlet. 10. checked "https://bugs.launchpad.net/calibre/+bug/1740020" found: I'm using Ubutun 17.10 mate, I have the same issue. Changing the environment variable did not work. peter@Talesian:/opt/calibre/bin$ CALIBRE_USE_SYSTEM_THEME=1 calibre QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries. peter@Talesian:/opt/calibre/bin$ CALIBRE_USE_SYSTEM_THEME=0 calibre QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries. Kovid Goyal (kovid) wrote on 2018-04-07: #4 That value of the environment variable is irrelevant, calibre checks for its existence. So this means I need to comment it out? I am not sure what to change and how to change it. 11. checked: "https://manual.calibre-ebook.com/customize.html#environment-variables" Found: CALIBRE_USE_SYSTEM_THEME - By default, on Linux, calibre uses its own builtin Qt style. This is to avoid crashes and hangs caused by incompatibilities between the version of Qt calibre is built against and the system Qt. The downside is that calibre may not follow the system look and feel. If you set this environment variable on Linux, it will cause calibre to use the system theme – beware of crashes and hangs. 12. ran ran env \| grep CALIBRE and got no results. 13. uninstalled using scott@scott-desktop:~$ sudo calibre-uninstall. it was removed 14. downloaded binary from: https://download.calibre-ebook.com/3...6.1-x86_64.txz Ran sudo mkdir -p /opt/calibre && sudo rm -rf /opt/calibre/* && sudo tar xvf /home/scott/downloads/calibre-3.26.1-x86_64.txz -C /opt/calibre && sudo /opt/calibre/calibre_postinstall Install completed 15. Ran Calibre Got QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries. QGtkStyle could not resolve GTK. Make sure you have installed the proper libraries. System froze again. removed power I have not the details of my steps saved if you need them. I am at a loss. I don't know what to do. I am pretty confident I did everything correctly. However, I am kind of new with Linux. I don' know how to change, check or set Environment Variables. I love this software so much. It is very turnkey on windows but I would like for it to be on my linux box. I have gotten it to work in previous versions of linux, 16.04, I think, maybe. Any help would be thankful.

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07-04-2018, 01:38 AM	#2
kovidgoyal creator of calibre Posts: 43,963 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	If your entire system is freezing it is likely an issue with your graphics card drivers. You can probably get it to work by changing the driver. Typically in Linux there are multiple drivers available for any given graphics card, proprietary and open source versions. Try switching between them. Or fallback to the defult VESA mode graphics driver (which is slow but suitable for most everyday tasks)

07-05-2018, 01:14 AM	#3
ScottRKahler Member Posts: 10 Karma: 10 Join Date: Jul 2018 Device: Moon Reader Pro	Thank you, I'll try that. Ok I switched to the proprietary driver and it stopped lockign up the system. However, I still get the same error. Anything else you can do to help?

07-05-2018, 01:15 AM	#4
ScottRKahler Member Posts: 10 Karma: 10 Join Date: Jul 2018 Device: Moon Reader Pro	maybe I lied

07-05-2018, 01:17 AM	#5
ScottRKahler Member Posts: 10 Karma: 10 Join Date: Jul 2018 Device: Moon Reader Pro	I can ssh to reboot the box but, it takes a long time. I don't know if that helps at all.

07-05-2018, 01:30 AM	#6
ScottRKahler Member Posts: 10 Karma: 10 Join Date: Jul 2018 Device: Moon Reader Pro	Do you have a resource for setting VESA Graphics mode? I don't know how.

07-05-2018, 01:39 AM	#7
ScottRKahler Member Posts: 10 Karma: 10 Join Date: Jul 2018 Device: Moon Reader Pro	I think I got it working. I went into GUI for my nvidia graphics driver. changed the settings to enhance application settings. It started to work. Testing some more.