Slow scrolling in main window

svenlind · 07-07-2010, 11:00 AM

Hi,
Scrolling in the main window has been very slow for me since version 0.7.x. When I click on the next title it takes about 4-5 seconds before the display changes. All kinds of sortings are also rather slow, 4-5 seconds. I have 245 books in the database.

If I enable the cover browser, then scrolling and sorting are almost instantaneous. Any ideas? (I could of course always enable the cover browser

)

chaley · 07-07-2010, 11:42 AM

People running Macs and calibre before 0.7.7 have reported something like this. Does that match you? If not, then run calibre in debug mode to see if it is saying something. Open a command box/terminal and type calibre-debug -g. If there are errors reported, copy the output and post it. Use 'Spoiler' (the crossed-out eye) to post the log, so that the possible 100s of lines aren't shown until someone wants to see them.

svenlind · 07-07-2010, 02:35 PM

Quote:

Originally Posted by chaley

People running Macs and calibre before 0.7.7 have reported something like this. Does that match you? If not, then run calibre in debug mode to see if it is saying something. Open a command box/terminal and type calibre-debug -g. If there are errors reported, copy the output and post it. Use 'Spoiler' (the crossed-out eye) to post the log, so that the possible 100s of lines aren't shown until someone wants to see them.

Well I have a Windows 7 64 bit machine, 8 GB RAM, I should of course have mentioned this.

If I run calibre-debug -g AND the previous (normal) run was with an enabled cover browser, then I get these 3 messages in the command window:

link hasn't been detected
link hasn't been detected
Started up in 2.39xxx

If I then disable the Cover browser then I get the situation below, and I cant' reenable the cover browser.

If I run calibre-debug -g AND the previous (normal) run was with a disabled cover browser, then I get a continuous stream of messages in the command window:
An example:
QImage:: setPixel: Coordinate (-66,105) out of range
The numbers in parenthesis changes from line to line.

Where is the 'Spoiler' that you mention?

chaley · 07-07-2010, 02:44 PM

Are you running 0.7.7?

What you are seeing is similar to the posts I have seen, so likely you are seeing a variant of the same problem. I hope that Kovid chimes in, because he knows what is going on in this area and what he has done to fix it.

The 'spoiler' appears if you are using 'advanced' mode. Its icon is a crossed-out eye. It is great for posting long, boring log files, because it lets people easily ignore them.

kovidgoyal · 07-07-2010, 04:01 PM

this should be fixed in 0.7.8

svenlind · 07-07-2010, 04:57 PM

Quote:

Originally Posted by chaley

Are you running 0.7.7?
.

Yes I am running 0.7.7, another info I forgot to mention

svenlind · 07-10-2010, 04:22 AM

Quote:

Originally Posted by kovidgoyal

this should be fixed in 0.7.8

And it certainly is!

07-07-2010, 11:00 AM	#1
svenlind Evangelist Posts: 421 Karma: 10169565 Join Date: Apr 2010 Location: Denmark Device: iPad Mini 5, Kindle Voyage and Oasis 3, Kobo Forma and Libra 2	Slow scrolling in main window Hi, Scrolling in the main window has been very slow for me since version 0.7.x. When I click on the next title it takes about 4-5 seconds before the display changes. All kinds of sortings are also rather slow, 4-5 seconds. I have 245 books in the database. If I enable the cover browser, then scrolling and sorting are almost instantaneous. Any ideas? (I could of course always enable the cover browser )

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07-07-2010, 11:42 AM	#2
chaley Grumpy old git Posts: 10,063 Karma: 3789385 Join Date: Jan 2010 Location: UK Device: Reader	People running Macs and calibre before 0.7.7 have reported something like this. Does that match you? If not, then run calibre in debug mode to see if it is saying something. Open a command box/terminal and type calibre-debug -g. If there are errors reported, copy the output and post it. Use 'Spoiler' (the crossed-out eye) to post the log, so that the possible 100s of lines aren't shown until someone wants to see them.

07-07-2010, 02:44 PM	#4
chaley Grumpy old git Posts: 10,063 Karma: 3789385 Join Date: Jan 2010 Location: UK Device: Reader	Are you running 0.7.7? What you are seeing is similar to the posts I have seen, so likely you are seeing a variant of the same problem. I hope that Kovid chimes in, because he knows what is going on in this area and what he has done to fix it. The 'spoiler' appears if you are using 'advanced' mode. Its icon is a crossed-out eye. It is great for posting long, boring log files, because it lets people easily ignore them.

07-07-2010, 04:01 PM	#5
kovidgoyal creator of calibre Posts: 40,176 Karma: 18000000 Join Date: Oct 2006 Location: Mumbai, India Device: Various	this should be fixed in 0.7.8

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