[asllearner]

Originally Posted by kovidgoyal

Try:

1) Reboot your computer
2) Run calibre without plugins (in a terminal)

/Applications/calibre.app/Contents/MacOS/calibre --ignore-plugins

This briefly showed the plain screen then became grey.

3) Run calibre with a fresh config (in a terminal)

CALIBRE_CONFIG_DIRECTORY=/tmp/c /Applications/calibre.app/Contents/MacOS/calibre

this breifly showed teh setup dialogue in grey, and prompted ot open library, but it came out grey.

Worse than before: I restarted in debug mode after the last...It showed briefly, then went grey too, but here is the log

Spoiler:

2018-04-27 13:58:55.357 calibre-debug[602:12681] OS X 10.13, zestyWin loaded...
calibre Debug log
calibre 3.22.1 embedded-python: True is64bit: True
Darwin-17.5.0-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '17.5.0', 'Darwin Kernel Version 17.5.0: Mon Mar 5 22:24:32 PST 2018; root:xnu-4570.51.1~1/RELEASE_X86_64')
Python 2.7.12
OSX: ('10.13.4', ('', '', ''), 'x86_64')
Interface language: None
calibre 3.22.1 embedded-python: True is64bit: True
Darwin-17.5.0-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '17.5.0', 'Darwin Kernel Version 17.5.0: Mon Mar 5 22:24:32 PST 2018; root:xnu-4570.51.1~1/RELEASE_X86_64')
Python 2.7.12
OSX: ('10.13.4', ('', '', ''), 'x86_64')
Interface language: None
devicePixelRatio: 1.0
logicalDpi: 72.0 x 72.0
physicalDpi: 109.000001637 x 109.000001637
Using calibre Qt style: True
[0.00] Starting up...
[0.03] Showing splash screen...
[0.17] splash screen shown
[0.17] Initializing db...
[0.18] db initialized
[0.18] Constructing main UI...
[1.33] main UI initialized...
[1.33] Hiding splash screen
[1.33] splash screen hidden
[1.33] Started up in 1.33 seconds with 19 books

I tried again a few times, here is what I got after trying to switch libraries a few times.

libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
Device 0 (VID=0482 and PID=09fc) is a Kyocera 302KC.
ignoring libusb_claim_interface() = -3PTP_ERROR_IO: failed to open session, trying again after resetting USB interface
LIBMTP libusb: Attempt to reset device
ignoring libusb_claim_interface() = -3LIBMTP PANIC: failed to open session on second attempt
Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 295, in detect_device
File "site-packages/calibre/devices/mtp/driver.py", line 126, in open
File "site-packages/calibre/devices/mtp/base.py", line 26, in synchronizer
File "site-packages/calibre/devices/mtp/unix/driver.py", line 220, in open
OpenFailed: Failed to open MTPDevice(busnum=20, devnum=5, vendor_id=1154, product_id=2556, bcd=256, serial=u'c2a7bcf3', manufacturer=u'Kyocera Corporation', product=u'302KC'): Error: Unable to open MTP device with busnum=20 and devnum=5, tried 1 such devices
EpubMerge: DEBUG: 2018-04-27 14:00:19,768: calibre_plugins.epubmerge.epubmerge_plugin(152): macmenuhack file_path:/Users/donnodd/Library/Preferences/calibre/plugins/fanficfare_macmenuhack.txt
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
calibre Debug log
calibre 3.22.1 embedded-python: True is64bit: True
Darwin-17.5.0-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '17.5.0', 'Darwin Kernel Version 17.5.0: Mon Mar 5 22:24:32 PST 2018; root:xnu-4570.51.1~1/RELEASE_X86_64')
Python 2.7.12
OSX: ('10.13.4', ('', '', ''), 'x86_64')
Interface language: None
DEBUG: 0.0 GetFileName::__init__.py - loading translations
DEBUG: 0.0 GetFileName::__init__.py - loading translations
Successfully initialized third party plugins: DeDRM (6, 6, 0) && EpubMerge (2, 2, 0) && Goodreads (1, 1, 14) && Walk Search History (1, 3, 1) && EpubSplit (2, 4, 0) && Copy Cover To Device (2, 0, 0) && Job Spy (1, 0, 113) && Resize Cover (1, 0, 2) && Generate Cover (1, 5, 21) && Search The Internet (1, 7, 6) && MultiColumnSearch (1, 0, 74) && Find Duplicates (1, 6, 3) && Open With (1, 5, 10) && Barnes & Noble (1, 2, 15) && Prettify Cover 0.9.12 && Library Splitter (1, 0, 0) && Manage Series (1, 2, 8) && djvumaker (1, 0, 2) && Save Composite Custom Columns (1, 1, 0) && Annotations (1, 7, 0) && User Category (1, 5, 3) && Library Codes (1, 0, 30) && EpubCheck (0, 1, 2) && KePub Metadata Reader (3, 0, 2) && Quick Preferences (1, 4, 1) && Quality Check (1, 9, 11) && Amazon.com Multiple Countries (1, 0, 0) && Extract ISBN (1, 4, 4) && Consolidate All Library Metadata (2, 0, 32) && View Manager (1, 4, 3) && Clean Metadata (0, 0, 6) && Favourites Menu (1, 0, 4) && GetFileName (0, 0, 12) && Import List (1, 3, 0) && Diaps Editing Toolbag (0, 3, 5) && Webscription (1, 1, 0)
calibre 3.22.1 embedded-python: True is64bit: True
Darwin-17.5.0-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '17.5.0', 'Darwin Kernel Version 17.5.0: Mon Mar 5 22:24:32 PST 2018; root:xnu-4570.51.1~1/RELEASE_X86_64')
Python 2.7.12
OSX: ('10.13.4', ('', '', ''), 'x86_64')
Interface language: None
Successfully initialized third party plugins: DeDRM (6, 6, 0) && EpubMerge (2, 2, 0) && Goodreads (1, 1, 14) && Walk Search History (1, 3, 1) && EpubSplit (2, 4, 0) && Copy Cover To Device (2, 0, 0) && Job Spy (1, 0, 113) && Resize Cover (1, 0, 2) && Generate Cover (1, 5, 21) && Search The Internet (1, 7, 6) && MultiColumnSearch (1, 0, 74) && Find Duplicates (1, 6, 3) && Open With (1, 5, 10) && Barnes & Noble (1, 2, 15) && Prettify Cover 0.9.12 && Library Splitter (1, 0, 0) && Manage Series (1, 2, 8) && djvumaker (1, 0, 2) && Save Composite Custom Columns (1, 1, 0) && Annotations (1, 7, 0) && User Category (1, 5, 3) && Library Codes (1, 0, 30) && EpubCheck (0, 1, 2) && KePub Metadata Reader (3, 0, 2) && Quick Preferences (1, 4, 1) && Quality Check (1, 9, 11) && Amazon.com Multiple Countries (1, 0, 0) && Extract ISBN (1, 4, 4) && Consolidate All Library Metadata (2, 0, 32) && View Manager (1, 4, 3) && Clean Metadata (0, 0, 6) && Favourites Menu (1, 0, 4) && GetFileName (0, 0, 12) && Import List (1, 3, 0) && Diaps Editing Toolbag (0, 3, 5) && Webscription (1, 1, 0)
devicePixelRatio: 1.0
logicalDpi: 72.0 x 72.0
physicalDpi: 109.000001637 x 109.000001637
Using calibre Qt style: True
[0.00] Starting up...
[0.02] Initializing db...
[0.09] db initialized
[0.09] Constructing main UI...
DEBUG: 0.0 Annotations plugin: Error loading libiMobileDevice. This hasn't worked for a while, and is blacklisted in calibre v3.
DEBUG: 0.0 Annotations plugin: Error is: No module named idevice.libimobiledevice
DEBUG: 0.0 Annotations::reader_app_support.py - loading translations
DEBUG: 0.0 Annotations::common_utils.py - loading translations
DEBUG: 0.0 Annotations::appearance.py - loading translations
DEBUG: 0.0 Annotations::config.py - loading translations
DEBUG: 0.0 Annotations::annotated_books.py - loading translations
DEBUG: 0.0 Annotations::action.py - loading translations
Error while trying to open MTPDevice(busnum=20, devnum=5, vendor_id=1154, product_id=2556, bcd=256, serial=u'c2a7bcf3', manufacturer=u'Kyocera Corporation', product=u'302KC') (Driver: <calibre.devices.mtp.driver.MTP_DEVICE object at 0x10b96dd90>)
Job Spy has begun initialization...
Calibre, and hence Job Spy, was gracefully shut down last time? True
Laslibpng warning: iCCP: known incorrect sRGB profile
t time daemon started: never
Last time daemon failed: never
Total daemon starts inception_to_date: 0
Total daemon failures inception-to-date: 0
Job Spy has finished initialization...
MCS has finished initialization...
[2.26] main UI initialized...
[2.26] Started up in 2.26 seconds with 703 books
2018-04-27 14:00:20.752 calibre-debug[622:13651] OS X 10.13, zestyWin loaded...
libpng warning: iCCP: known incorrect sRGB profile