Calibre locks entire machine for 1-2 mins on first startup

[chaley]

Originally Posted by kovidgoyal

Line 325 of devices/scanner.py will do the trick.

Commenting out that line leaves the MTP and wireless drivers running. Although the wireless driver is probably harmless (but who knows), the MTP driver must do some kind of bus scan.

[kovidgoyal]

Then just make unmanaged_devices an empty list in gui2/device.py in addition to that change.

[DrChiper]

By accident I had monitored a relatively long delay on starting-up calibre, but mind this was not an actual freeze. Calibre seems to query some disk info which somehow takes seconds to complete.
On normal startup it just takes microseconds.

[chaley]

Originally Posted by DrChiper

By accident I had monitored a relatively long delay on starting-up calibre, but mind this was not an actual freeze. Calibre seems to query some disk info which somehow takes seconds to complete.
On normal startup it just takes microseconds.

Kovid's question is a good one: do you have any mapped network drives? If so, are they to resources that are not on line?

Do you have any "drive-like" devices plugged in?

Do you have any real-time backup program running?

Originally Posted by chaley

Kovid's question is a good one: do you have any mapped network drives? If so, are they to resources that are not on line?

Do you have any "drive-like" devices plugged in?

Do you have any real-time backup program running?

Out of spite, I decided to try what has been requested several time.

After 6 tries, I finally got the 'Safe mode wit network' message on boot, and started it.

Boots very quickly...

I just launched 'task manager' and the Calibre (nothing else).

Well ! As usual, on first start, I count slowly to 55. Everything frozen, including all of the Task' screen and its clock... When the splash screen shows (at last), it stays for 3 seconds and then the program run immediately.

Closed it, restarted, almost instananeous.

And answer to the 'quote above':

No, not any 'Network drive'
No device running other than the permanent USB disk (forget to check
if it was available, then)

No back-up program running (I do it by hand myself)

Mystery stay entirely (Gremlins, may be ?)

And I do not have any library or scan by Calibre, just an empty lib
that I use to convert files then delete it. Don't even have the 'help book'
in there

[DiapDealer]

What's a permanent USB disk? I didn't know there was such a thing.

[shalym]

Originally Posted by DiapDealer

What's a permanent USB disk? I didn't know there was such a thing.

I believe he means a USB drive that is always connected to the computer. I have one of those on my desktop running Windows 8.1.

I don't, however have the problem that this thread is discussing--Calibre never locks up my entire system.

Shari

[HarryT]

Originally Posted by DiapDealer

What's a permanent USB disk? I didn't know there was such a thing.

I would guess that he means that he has an external disk that's always plugged in via USB.

[DiapDealer]

Originally Posted by shalym

I believe he means a USB drive that is always connected to the computer. I have one of those on my desktop running Windows 8.1.

A portable drive one never unplugs is still a portable drive/removable media.

[DrChiper]

Originally Posted by chaley

do you have any mapped network drives? If so, are they to resources that are not on line?
Do you have any "drive-like" devices plugged in?
Do you have any real-time backup program running?

Answer: No, no and no.

[cybmole]

Originally Posted by HarryT

I would guess that he means that he has an external disk that's always plugged in via USB.

i have one like that, a 1.5Tb samsung story station, for backups n stuff; it auto sleeps after ~10 mins of non use but it is stashed at back of PC & I never " remove" it or power it off. It is mapped to a static letter (I) in windows disc management, as the dell multi card reader device that i never use takes up E, F, G, H.

and it does not interfere with calibre launches.

I guess safe mode boot with the OP's USB drive unplugged would completely exonerate it.

so a freeze in safe mode rules out video drivers ? - I am pretty sure that safe mode uses only a generic VGA driver.

Yes, I confirm. I had a 1 Tb internal second disk that died (was in fact the system's). I changed it to an external 2.5 Tb, that I use exactly as an external, never disconnected. For me, it is a second 'data disc', but it is not hot as inside the PC.


Just for the fun, in Win 7, if you do have a disc larger than 2 Tb, Win backup can backup your system on it, but is TOTALY incapable of reading it back ! Nice bug, no ?

Originally Posted by cybmole

so a freeze in safe mode rules out video drivers ? - I am pretty sure that safe mode uses only a generic VGA driver.

Oh, I think so. In fact, the screen reverse back to VGA mode, with all the desk
stacked in a corner.

[theducks]

Originally Posted by kovidgoyal

One thing to check. Do either of you have any mapped network drives?

I do (to my XP machine and the reverse) and have no problems. An a Wired Network


Launch immediate after a Cold boot ?
or First use after a Cold boot has settled out ?

Lots of other stuff typically happens right on the tail of a cold boot:
A/V updates and optional Scans afterwards
M$ update checks / post update Malicious scans
Adobe (family of stuff) update checks
Java Update stuff
Indexing (if enabled)


BTW Get and run Pagefile defrag from Sysinternals (My standard boot runs it every time on XP). This also defrags the registrey files

[cybmole]

Originally Posted by theducks

BTW Get and run Pagefile defrag from Sysinternals (My standard boot runs it every time on XP). This also defrags the registrey files

I think this is grasping at straws. defragging the registry in windows 7 might shave 2 milliseconds off of boot time. even microsoft say don't bother & don't waste your money on registry cleaners. the registry is loaded once, at boot & held in ram unless you are desperately short of that, so registry access during normal use shoudl be immediate, no matter how fragged the file copy is.

a page file in need of defrag could maybe slow a machine by a fraction of a second but not freeze it for a long time.

and either of those would impact all programs not solely calibre

a failing hard drive could cause a lengthy freeze, but we have multiple posters with the same issues, it is unlikely they all have failing drives ?

but this does prompt another thought, what if the affected users were to install & test launch calibre portable - would that freeze in the same manner as the regular install, or not ?