calibre and HD PCs

anacreon · 03-11-2016, 04:54 PM

I have a Surface Book since February 18, with a high definition (3000 x 2000 pixels, 267 ppi). Unfortunately some user interfaces can't cope. Calibre is mostly ok, but I couldn't plan magazines download today: the lines were too narrow to see what I was supposed to enter (I had no previous experience to rely on).

phossler · 03-11-2016, 06:09 PM

Assuming you're using Win10, try going to

Settings, System, Display, and moving the slider for "Change size of Text, App, and other items..." to see if it helps

kovidgoyal · 03-11-2016, 09:26 PM

It would help if you posted a screenshot

anacreon · 03-12-2016, 08:52 AM

For kovidgoyal:
http://ipparis.fr/documents/calibre.jpg
The problem is not limited to Calibre. It makes Bridge and Adobe CS6 very difficult to use for instance, though Photoshop Elements 13 is fine and I read Adobe CC has a way around: an option to apply the 200% which I maintained for the slider Phossler mentions, which is the default recommended by Microsoft. Perhaps those programs with problems inactivate it?

Other pop-ups in Calibre and Kobo Utilities have narrow lines, but less so, and I know them enough to be able to use them.

For Phossler:
I've tried to increase the slider way abode the 200% mentioned above for other applications (the Adobe ones), and it makes no difference to the readability, though it disturbs all the rest of it.

kovidgoyal · 03-13-2016, 08:12 AM

Hmm that looks like Qt is having trouble calculating text metrics. Not much I can do about that in calibre code, but Qt is supposed to be working on improving HiDPI support. You can try the calibre builds here: https://download.calibre-ebook.com/betas/

They are built with a newer version of Qt (warning those are beta builds -- they are also built with a newer version of Visual Studio, so I'd suggest trying the portable version and seeing if it makes a difference first.)

chaley · 03-13-2016, 09:11 AM

@Kovid: I have a Win10 laptop with a 300dpi (approx) display. I see the same problem with the beta.

The problem is caused by the maximumSize property in scheduler.ui line 146. If I change it from 75 to 275 things work. I am not going to commit this change because I don't know either why the maxSize is there or what side effects changing the max height would have.

Also, this dialog doesn't remember its size. On my display the default size is way too small. I tried removing the geometry specs on lines 9 and 10, but that didn't change anything. I need to change the window size every time I open it.

kovidgoyal · 03-13-2016, 09:26 AM

Good catch

It should be safe to remove, as far as I can tell, it's legacy code -- I will commit it. As for remembering its size, the dialog has no code to do that, it's from before the time I started making all dialogs remember their sizes.

03-11-2016, 04:54 PM	#1
anacreon Guru Posts: 976 Karma: 3475832 Join Date: May 2012 Location: France Device: Elipsa, Sage, Libra 2	calibre and HD PCs I have a Surface Book since February 18, with a high definition (3000 x 2000 pixels, 267 ppi). Unfortunately some user interfaces can't cope. Calibre is mostly ok, but I couldn't plan magazines download today: the lines were too narrow to see what I was supposed to enter (I had no previous experience to rely on).

03-13-2016, 09:11 AM	#6
chaley Grand Sorcerer Posts: 12,404 Karma: 8012652 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	@Kovid: I have a Win10 laptop with a 300dpi (approx) display. I see the same problem with the beta. The problem is caused by the maximumSize property in scheduler.ui line 146. If I change it from 75 to 275 things work. I am not going to commit this change because I don't know either why the maxSize is there or what side effects changing the max height would have. Also, this dialog doesn't remember its size. On my display the default size is way too small. I tried removing the geometry specs on lines 9 and 10, but that didn't change anything. I need to change the window size every time I open it. Last edited by chaley; 03-13-2016 at 09:27 AM.

03-13-2016, 09:26 AM	#7
kovidgoyal creator of calibre Posts: 45,299 Karma: 27111240 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Good catch It should be safe to remove, as far as I can tell, it's legacy code -- I will commit it. As for remembering its size, the dialog has no code to do that, it's from before the time I started making all dialogs remember their sizes. Last edited by kovidgoyal; 03-13-2016 at 09:33 AM.

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03-11-2016, 06:09 PM	#2
phossler Wizard Posts: 1,087 Karma: 447222 Join Date: Jan 2009 Location: Valley Forge, PA, USA Device: Kindle Paperwhite	Assuming you're using Win10, try going to Settings, System, Display, and moving the slider for "Change size of Text, App, and other items..." to see if it helps

03-11-2016, 09:26 PM	#3
kovidgoyal creator of calibre Posts: 45,299 Karma: 27111240 Join Date: Oct 2006 Location: Mumbai, India Device: Various	It would help if you posted a screenshot

03-12-2016, 08:52 AM	#4
anacreon Guru Posts: 976 Karma: 3475832 Join Date: May 2012 Location: France Device: Elipsa, Sage, Libra 2	For kovidgoyal: http://ipparis.fr/documents/calibre.jpg The problem is not limited to Calibre. It makes Bridge and Adobe CS6 very difficult to use for instance, though Photoshop Elements 13 is fine and I read Adobe CC has a way around: an option to apply the 200% which I maintained for the slider Phossler mentions, which is the default recommended by Microsoft. Perhaps those programs with problems inactivate it? Other pop-ups in Calibre and Kobo Utilities have narrow lines, but less so, and I know them enough to be able to use them. For Phossler: I've tried to increase the slider way abode the 200% mentioned above for other applications (the Adobe ones), and it makes no difference to the readability, though it disturbs all the rest of it.

03-13-2016, 08:12 AM	#5
kovidgoyal creator of calibre Posts: 45,299 Karma: 27111240 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Hmm that looks like Qt is having trouble calculating text metrics. Not much I can do about that in calibre code, but Qt is supposed to be working on improving HiDPI support. You can try the calibre builds here: https://download.calibre-ebook.com/betas/ They are built with a newer version of Qt (warning those are beta builds -- they are also built with a newer version of Visual Studio, so I'd suggest trying the portable version and seeing if it makes a difference first.)

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