Scrolling within a set

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Scrolling within a set

davidvj
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Re: Scrolling within a set

Andrew Goodbody
On 27/04/12 22:08, David Vincent-Jones wrote:
> Does anybody else find that when scrolling through a folder the folder
> tends to 'fragment' very easily and even partial images from another set
> are shown.
> I do not scroll so very fast but dt appears to have problems in this
> regard.
>
> David

Yes, I see that. I am currently using 2.5.0 on Debian testing with Gnome
3.2.0.

Andrew
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Re: Scrolling within a set

Antonio Trincone
I can confirm similar problems: when moving amount of images (all selected after scrolling) from one location to another, "ghosts" icons appeared a bit and then disappeared not so instantaneously or similar behaviour that recall me some memory shortings. Don't know really if it is an issue memory related but it could be.

Il giorno 27 aprile 2012 23:58, Andrew Goodbody <[hidden email]> ha scritto:
On 27/04/12 22:08, David Vincent-Jones wrote:
Does anybody else find that when scrolling through a folder the folder
tends to 'fragment' very easily and even partial images from another set
are shown.
I do not scroll so very fast but dt appears to have problems in this
regard.

David

Yes, I see that. I am currently using 2.5.0 on Debian testing with Gnome 3.2.0.

Andrew

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http://www.icb.cnr.it/antonio.trincone/
http://sites.google.com/site/phototrincone/
http://sites.google.com/site/cvtrincone/home
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Re: Scrolling within a set

Peter Albrecht
How many images do you have in your folders?

I tested a folder with 200 images and could not reproduce
any error with the thumbnails.

On 28.04.2012 06:16, Antonio Trincone wrote:

> I can confirm similar problems: when moving amount of images (all selected
> after scrolling) from one location to another, "ghosts" icons appeared a
> bit and then disappeared not so instantaneously or similar behaviour that
> recall me some memory shortings. Don't know really if it is an issue memory
> related but it could be.
>
> Il giorno 27 aprile 2012 23:58, Andrew Goodbody <[hidden email]> ha
> scritto:
>
>> On 27/04/12 22:08, David Vincent-Jones wrote:
>>
>>> Does anybody else find that when scrolling through a folder the folder
>>> tends to 'fragment' very easily and even partial images from another set
>>> are shown.
>>> I do not scroll so very fast but dt appears to have problems in this
>>> regard.
>>>
>>> David
>>>
>>
>> Yes, I see that. I am currently using 2.5.0 on Debian testing with Gnome
>> 3.2.0.
>>
>> Andrew
>>
>> ______________________________**_________________
>> Digikam-users mailing list
>> [hidden email]
>> https://mail.kde.org/mailman/**listinfo/digikam-users<https://mail.kde.org/mailman/listinfo/digikam-users>
>>
>
>
>
>
>
> _______________________________________________
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Re: Scrolling within a set

Andrew Goodbody
The number of images does not matter much AFAICT, as long as there are
enough to scroll a few up and down. I just reproduced it in a directory
with 56 pictures in it. See the screenshot
http://elfringham.co.uk/plogger/index.php?level=picture&id=28

The corrupted display is in fact showing portions of pictures from the
previous directory that I was viewing. If I hover the mouse over the
corrupted display then it is redrawn correctly.

Correct display
http://elfringham.co.uk/plogger/index.php?level=picture&id=29

Andrew

On 30/04/12 21:09, Peter Albrecht wrote:

> How many images do you have in your folders?
>
> I tested a folder with 200 images and could not reproduce
> any error with the thumbnails.
>
> On 28.04.2012 06:16, Antonio Trincone wrote:
>> I can confirm similar problems: when moving amount of images (all selected
>> after scrolling) from one location to another, "ghosts" icons appeared a
>> bit and then disappeared not so instantaneously or similar behaviour that
>> recall me some memory shortings. Don't know really if it is an issue memory
>> related but it could be.
>>
>> Il giorno 27 aprile 2012 23:58, Andrew Goodbody<[hidden email]>  ha
>> scritto:
>>
>>> On 27/04/12 22:08, David Vincent-Jones wrote:
>>>
>>>> Does anybody else find that when scrolling through a folder the folder
>>>> tends to 'fragment' very easily and even partial images from another set
>>>> are shown.
>>>> I do not scroll so very fast but dt appears to have problems in this
>>>> regard.
>>>>
>>>> David
>>>>
>>>
>>> Yes, I see that. I am currently using 2.5.0 on Debian testing with Gnome
>>> 3.2.0.
>>>
>>> Andrew
>>>
>>> ______________________________**_________________
>>> Digikam-users mailing list
>>> [hidden email]
>>> https://mail.kde.org/mailman/**listinfo/digikam-users<https://mail.kde.org/mailman/listinfo/digikam-users>
>>>
>>
>>
>>
>>
>>
>> _______________________________________________
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>> [hidden email]
>> https://mail.kde.org/mailman/listinfo/digikam-users
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Re: Scrolling within a set

Peter Albrecht
Hi Andrew,

what graphic card and driver do you use?

I have an integrated Intel G45. Maybe this could be the
important difference. Since I can't reproduce this bug with
my digiKam 2.5.0 installation. But this is only a guess.
(KDE version 4.8.1, at gentoo linux)

Peter

On 30.04.2012 22:30, Andrew Goodbody wrote:

> The number of images does not matter much AFAICT, as long as
> there are enough to scroll a few up and down. I just
> reproduced it in a directory with 56 pictures in it. See the
> screenshot
> http://elfringham.co.uk/plogger/index.php?level=picture&id=28
>
> The corrupted display is in fact showing portions of
> pictures from the previous directory that I was viewing. If
> I hover the mouse over the corrupted display then it is
> redrawn correctly.
>
> Correct display
> http://elfringham.co.uk/plogger/index.php?level=picture&id=29
>
> Andrew
>
> On 30/04/12 21:09, Peter Albrecht wrote:
>> How many images do you have in your folders?
>>
>> I tested a folder with 200 images and could not reproduce
>> any error with the thumbnails.
>>
>> On 28.04.2012 06:16, Antonio Trincone wrote:
>>> I can confirm similar problems: when moving amount of
>>> images (all selected
>>> after scrolling) from one location to another, "ghosts"
>>> icons appeared a
>>> bit and then disappeared not so instantaneously or
>>> similar behaviour that
>>> recall me some memory shortings. Don't know really if it
>>> is an issue memory
>>> related but it could be.
>>>
>>> Il giorno 27 aprile 2012 23:58, Andrew
>>> Goodbody<[hidden email]>  ha
>>> scritto:
>>>
>>>> On 27/04/12 22:08, David Vincent-Jones wrote:
>>>>
>>>>> Does anybody else find that when scrolling through a
>>>>> folder the folder
>>>>> tends to 'fragment' very easily and even partial images
>>>>> from another set
>>>>> are shown.
>>>>> I do not scroll so very fast but dt appears to have
>>>>> problems in this
>>>>> regard.
>>>>>
>>>>> David
>>>>>
>>>>
>>>> Yes, I see that. I am currently using 2.5.0 on Debian
>>>> testing with Gnome
>>>> 3.2.0.
>>>>
>>>> Andrew
>>>>
>>>> ______________________________**_________________
>>>> Digikam-users mailing list
>>>> [hidden email]
>>>> https://mail.kde.org/mailman/**listinfo/digikam-users<https://mail.kde.org/mailman/listinfo/digikam-users>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Digikam-users mailing list
>>> [hidden email]
>>> https://mail.kde.org/mailman/listinfo/digikam-users
>> _______________________________________________
>> Digikam-users mailing list
>> [hidden email]
>> https://mail.kde.org/mailman/listinfo/digikam-users
>>
> _______________________________________________
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> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
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Re: Scrolling within a set

John Stumbles
In reply to this post by Andrew Goodbody
On 30/04/12 21:30, Andrew Goodbody wrote:
> The number of images does not matter much AFAICT, as long as there are
> enough to scroll a few up and down. I just reproduced it in a directory
> with 56 pictures in it. See the screenshot
> http://elfringham.co.uk/plogger/index.php?level=picture&id=28

I get much the same thing. It's as if digikam (or maybe at the kde
level) hasn't finished re-drawing the screen.

For me it's not generally a big problem, more a little annoyance, though
I have had a time where it just crazily filled random image rectangles
with their images then reverted to empty rectangles while filling
another image rectangle, on and on seemingly at random amongst the image
rectangles visible on the screen.

--
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Re: Scrolling within a set

davidvj
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Re: Scrolling within a set

Andrew Goodbody
In reply to this post by Peter Albrecht
The card is an AMD Radeon HD 5450 using the radeon driver from Debian
testing.

It certainly could be the video driver as this bug has been around for a
while. It does not bother me too much as I just wave my mouse over the
photos to get a redraw. I had sort of assumed that it was due to my use
of Gnome while running a kde application.

Andrew

On 30/04/12 22:22, Peter Albrecht wrote:

> Hi Andrew,
>
> what graphic card and driver do you use?
>
> I have an integrated Intel G45. Maybe this could be the
> important difference. Since I can't reproduce this bug with
> my digiKam 2.5.0 installation. But this is only a guess.
> (KDE version 4.8.1, at gentoo linux)
>
> Peter
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Re: Scrolling within a set

Antonio Trincone
In reply to this post by Peter Albrecht
Hundreds of images like you. And my card is GeoForce, not easy to remember any detail.


2012/4/30 Peter Albrecht <[hidden email]>
How many images do you have in your folders?

I tested a folder with 200 images and could not reproduce
any error with the thumbnails.

On 28.04.2012 06:16, Antonio Trincone wrote:
> I can confirm similar problems: when moving amount of images (all selected
> after scrolling) from one location to another, "ghosts" icons appeared a
> bit and then disappeared not so instantaneously or similar behaviour that
> recall me some memory shortings. Don't know really if it is an issue memory
> related but it could be.
>
> Il giorno 27 aprile 2012 23:58, Andrew Goodbody <[hidden email]> ha
> scritto:
>
>> On 27/04/12 22:08, David Vincent-Jones wrote:
>>
>>> Does anybody else find that when scrolling through a folder the folder
>>> tends to 'fragment' very easily and even partial images from another set
>>> are shown.
>>> I do not scroll so very fast but dt appears to have problems in this
>>> regard.
>>>
>>> David
>>>
>>
>> Yes, I see that. I am currently using 2.5.0 on Debian testing with Gnome
>> 3.2.0.
>>
>> Andrew
>>
>> ______________________________**_________________
>> Digikam-users mailing list
>> [hidden email]
>> https://mail.kde.org/mailman/**listinfo/digikam-users<https://mail.kde.org/mailman/listinfo/digikam-users>
>>
>
>
>
>
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
_______________________________________________
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--
--
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http://publicationslist.org/antonio.trincone
http://www.icb.cnr.it/antonio.trincone/
http://sites.google.com/site/phototrincone/
http://sites.google.com/site/cvtrincone/home
http://imaginesvolantscriptamanent.blogspot.com/


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Re: Scrolling within a set

davidvj
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Re: Scrolling within a set

davidvj
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Re: Scrolling within a set

Simon Cropper-3
Hi,

I also have this problem and it seems to have become worse over the last
6 months, apparently after upgrading from Ubuntu 10.04 to 11.10.
As I have a number of other weird issues appear after this upgrade that
seemed kernel based (e.g. excessive iowait problems caused by disk
journaling) I chalked it up to a kernal upgrade and have been waiting
for the latest kernels to be released with 12.04. Several updates have
now flowed through but the problem is still present.

I run... Ubuntu 11.10 + XFCE (although the problem appears in the Unity
and Gnome Classic Desktops).

I have a nVidia Corporation G84 [GeForce 8600 GT] (rev a1). Running dual
monitors.

On 02/05/12 07:00, David Vincent-Jones wrote:

> Just doing some tagging following a search ... had multiple folders
> showing images from the search.
> The scrolling problem can be seen at its worst under these conditions;
> multiple selects for my tags was really a problem.
>
> David
>
> On Tue, 2012-05-01 at 08:47 -0700, David Vincent-Jones wrote:
>> I have an ATI RV370 (Radeon X300) on my desktop and that shows the
>> problem. My laptop has a ATI Mobility Radeon HD 3400 it has the same
>> problem.
>>
>> I am running Gnome .... could this be part of the problem?
>>
>> On Mon, 2012-04-30 at 23:22 +0200, Peter Albrecht wrote:
>>> Hi Andrew,
>>>
>>> what graphic card and driver do you use?
>>>
>>> I have an integrated Intel G45. Maybe this could be the
>>> important difference. Since I can't reproduce this bug with
>>> my digiKam 2.5.0 installation. But this is only a guess.
>>> (KDE version 4.8.1, at gentoo linux)
>>>
>>> Peter
>>>
>>> On 30.04.2012 22:30, Andrew Goodbody wrote:
>>>> The number of images does not matter much AFAICT, as long as
>>>> there are enough to scroll a few up and down. I just
>>>> reproduced it in a directory with 56 pictures in it. See the
>>>> screenshot
>>>> http://elfringham.co.uk/plogger/index.php?level=picture&id=28
>>>>
>>>> The corrupted display is in fact showing portions of
>>>> pictures from the previous directory that I was viewing. If
>>>> I hover the mouse over the corrupted display then it is
>>>> redrawn correctly.
>>>>
>>>> Correct display
>>>> http://elfringham.co.uk/plogger/index.php?level=picture&id=29
>>>>
>>>> Andrew
>>>>
>>>> On 30/04/12 21:09, Peter Albrecht wrote:
>>>>> How many images do you have in your folders?
>>>>>
>>>>> I tested a folder with 200 images and could not reproduce
>>>>> any error with the thumbnails.
>>>>>
>>>>> On 28.04.2012 06:16, Antonio Trincone wrote:
>>>>>> I can confirm similar problems: when moving amount of
>>>>>> images (all selected
>>>>>> after scrolling) from one location to another, "ghosts"
>>>>>> icons appeared a
>>>>>> bit and then disappeared not so instantaneously or
>>>>>> similar behaviour that
>>>>>> recall me some memory shortings. Don't know really if it
>>>>>> is an issue memory
>>>>>> related but it could be.
>>>>>>
>>>>>> Il giorno 27 aprile 2012 23:58, Andrew
>>>>>> Goodbody<[hidden email]>   ha
>>>>>> scritto:
>>>>>>
>>>>>>> On 27/04/12 22:08, David Vincent-Jones wrote:
>>>>>>>
>>>>>>>> Does anybody else find that when scrolling through a
>>>>>>>> folder the folder
>>>>>>>> tends to 'fragment' very easily and even partial images
>>>>>>>> from another set
>>>>>>>> are shown.
>>>>>>>> I do not scroll so very fast but dt appears to have
>>>>>>>> problems in this
>>>>>>>> regard.
>>>>>>>>
>>>>>>>> David
>>>>>>>>
>>>>>>>
>>>>>>> Yes, I see that. I am currently using 2.5.0 on Debian
>>>>>>> testing with Gnome
>>>>>>> 3.2.0.
>>>>>>>
>>>>>>> Andrew
>>>>>>>
>>>>>>> ______________________________**_________________
>>>>>>> Digikam-users mailing list
>>>>>>> [hidden email]
>>>>>>> https://mail.kde.org/mailman/**listinfo/digikam-users<https://mail.kde.org/mailman/listinfo/digikam-users>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Digikam-users mailing list
>>>>>> [hidden email]
>>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>> _______________________________________________
>>>>> Digikam-users mailing list
>>>>> [hidden email]
>>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>>
>>>> _______________________________________________
>>>> Digikam-users mailing list
>>>> [hidden email]
>>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>>>
>>> _______________________________________________
>>> Digikam-users mailing list
>>> [hidden email]
>>> https://mail.kde.org/mailman/listinfo/digikam-users
>>
>>
>> _______________________________________________
>> Digikam-users mailing list
>> [hidden email]
>> https://mail.kde.org/mailman/listinfo/digikam-users
>
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users


--
Cheers Simon

    Simon Cropper - Open Content Creator / Website Administrator

    Free and Open Source Software Workflow Guides
    ------------------------------------------------------------
    Introduction               http://www.fossworkflowguides.com
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Re: Scrolling within a set

Peter Albrecht
In reply to this post by davidvj
I tried a search, got 70 pictures in ~15 folders but still
can't reproduce the bug. I tried scrolling with the mouse
wheel, the scrollbar slider and the scrollbar buttons.

Has anyone installed GNOME _and_ KDE desktop? To test
whether the desktop environment might be the culpriT?

Peter

On 01.05.2012 23:00, David Vincent-Jones wrote:
> Just doing some tagging following a search ... had multiple folders
> showing images from the search.
> The scrolling problem can be seen at its worst under these conditions;
> multiple selects for my tags was really a problem.

> On Tue, 2012-05-01 at 08:47 -0700, David Vincent-Jones wrote:
>> I have an ATI RV370 (Radeon X300) on my desktop and that shows the
>> problem. My laptop has a ATI Mobility Radeon HD 3400 it has the same
>> problem.
>>
>> I am running Gnome .... could this be part of the problem?
>>
>> On Mon, 2012-04-30 at 23:22 +0200, Peter Albrecht wrote:
>>> Hi Andrew,
>>>
>>> what graphic card and driver do you use?
>>>
>>> I have an integrated Intel G45. Maybe this could be the
>>> important difference. Since I can't reproduce this bug with
>>> my digiKam 2.5.0 installation. But this is only a guess.
>>> (KDE version 4.8.1, at gentoo linux)
>>>
>>> On 30.04.2012 22:30, Andrew Goodbody wrote:
>>>> The number of images does not matter much AFAICT, as long as
>>>> there are enough to scroll a few up and down. I just
>>>> reproduced it in a directory with 56 pictures in it. See the
>>>> screenshot
>>>> http://elfringham.co.uk/plogger/index.php?level=picture&id=28
>>>>
>>>> The corrupted display is in fact showing portions of
>>>> pictures from the previous directory that I was viewing. If
>>>> I hover the mouse over the corrupted display then it is
>>>> redrawn correctly.
>>>>
>>>> Correct display
>>>> http://elfringham.co.uk/plogger/index.php?level=picture&id=29
>>>>
>>>> Andrew
>>>>
>>>> On 30/04/12 21:09, Peter Albrecht wrote:
>>>>> How many images do you have in your folders?
>>>>>
>>>>> I tested a folder with 200 images and could not reproduce
>>>>> any error with the thumbnails.
>>>>>
>>>>> On 28.04.2012 06:16, Antonio Trincone wrote:
>>>>>> I can confirm similar problems: when moving amount of
>>>>>> images (all selected
>>>>>> after scrolling) from one location to another, "ghosts"
>>>>>> icons appeared a
>>>>>> bit and then disappeared not so instantaneously or
>>>>>> similar behaviour that
>>>>>> recall me some memory shortings. Don't know really if it
>>>>>> is an issue memory
>>>>>> related but it could be.
>>>>>>
>>>>>> Il giorno 27 aprile 2012 23:58, Andrew
>>>>>> Goodbody<[hidden email]>  ha
>>>>>> scritto:
>>>>>>
>>>>>>> On 27/04/12 22:08, David Vincent-Jones wrote:
>>>>>>>
>>>>>>>> Does anybody else find that when scrolling through a
>>>>>>>> folder the folder
>>>>>>>> tends to 'fragment' very easily and even partial images
>>>>>>>> from another set
>>>>>>>> are shown.
>>>>>>>> I do not scroll so very fast but dt appears to have
>>>>>>>> problems in this
>>>>>>>> regard.
>>>>>>>>
>>>>>>>> David
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Re: Scrolling within a set

davidvj
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Re: Scrolling within a set

Peter Albrecht
Correct, I use digiKam 2.5.0 with KDE version 4.8.1, at
gentoo linux.

Peter

On 02.05.2012 19:23, David Vincent-Jones wrote:

> I find that scrolling with the slider works 'better', with the mouse
> wheel that problems really occur.
>
> I assume that you are using KDE where you see no problems?
>
> David
>
> On Wed, 2012-05-02 at 18:38 +0200, Peter Albrecht wrote:
>> I tried a search, got 70 pictures in ~15 folders but still
>> can't reproduce the bug. I tried scrolling with the mouse
>> wheel, the scrollbar slider and the scrollbar buttons.
>>
>> Has anyone installed GNOME _and_ KDE desktop? To test
>> whether the desktop environment might be the culpriT?
>>
>> Peter
>>
>> On 01.05.2012 23:00, David Vincent-Jones wrote:
>>> Just doing some tagging following a search ... had multiple folders
>>> showing images from the search.
>>> The scrolling problem can be seen at its worst under these conditions;
>>> multiple selects for my tags was really a problem.
>>
>>> On Tue, 2012-05-01 at 08:47 -0700, David Vincent-Jones wrote:
>>>> I have an ATI RV370 (Radeon X300) on my desktop and that shows the
>>>> problem. My laptop has a ATI Mobility Radeon HD 3400 it has the same
>>>> problem.
>>>>
>>>> I am running Gnome .... could this be part of the problem?
>>>>
>>>> On Mon, 2012-04-30 at 23:22 +0200, Peter Albrecht wrote:
>>>>> Hi Andrew,
>>>>>
>>>>> what graphic card and driver do you use?
>>>>>
>>>>> I have an integrated Intel G45. Maybe this could be the
>>>>> important difference. Since I can't reproduce this bug with
>>>>> my digiKam 2.5.0 installation. But this is only a guess.
>>>>> (KDE version 4.8.1, at gentoo linux)
>>>>>
>>>>> On 30.04.2012 22:30, Andrew Goodbody wrote:
>>>>>> The number of images does not matter much AFAICT, as long as
>>>>>> there are enough to scroll a few up and down. I just
>>>>>> reproduced it in a directory with 56 pictures in it. See the
>>>>>> screenshot
>>>>>> http://elfringham.co.uk/plogger/index.php?level=picture&id=28
>>>>>>
>>>>>> The corrupted display is in fact showing portions of
>>>>>> pictures from the previous directory that I was viewing. If
>>>>>> I hover the mouse over the corrupted display then it is
>>>>>> redrawn correctly.
>>>>>>
>>>>>> Correct display
>>>>>> http://elfringham.co.uk/plogger/index.php?level=picture&id=29
>>>>>>
>>>>>> Andrew
>>>>>>
>>>>>> On 30/04/12 21:09, Peter Albrecht wrote:
>>>>>>> How many images do you have in your folders?
>>>>>>>
>>>>>>> I tested a folder with 200 images and could not reproduce
>>>>>>> any error with the thumbnails.
>>>>>>>
>>>>>>> On 28.04.2012 06:16, Antonio Trincone wrote:
>>>>>>>> I can confirm similar problems: when moving amount of
>>>>>>>> images (all selected
>>>>>>>> after scrolling) from one location to another, "ghosts"
>>>>>>>> icons appeared a
>>>>>>>> bit and then disappeared not so instantaneously or
>>>>>>>> similar behaviour that
>>>>>>>> recall me some memory shortings. Don't know really if it
>>>>>>>> is an issue memory
>>>>>>>> related but it could be.
>>>>>>>>
>>>>>>>> Il giorno 27 aprile 2012 23:58, Andrew
>>>>>>>> Goodbody<[hidden email]>  ha
>>>>>>>> scritto:
>>>>>>>>
>>>>>>>>> On 27/04/12 22:08, David Vincent-Jones wrote:
>>>>>>>>>
>>>>>>>>>> Does anybody else find that when scrolling through a
>>>>>>>>>> folder the folder
>>>>>>>>>> tends to 'fragment' very easily and even partial images
>>>>>>>>>> from another set
>>>>>>>>>> are shown.
>>>>>>>>>> I do not scroll so very fast but dt appears to have
>>>>>>>>>> problems in this
>>>>>>>>>> regard.
>>>>>>>>>>
>>>>>>>>>> David
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Re: Scrolling within a set

Andrew Goodbody
In reply to this post by Peter Albrecht
On 02/05/12 17:38, Peter Albrecht wrote:
> Has anyone installed GNOME _and_ KDE desktop? To test
> whether the desktop environment might be the culpriT?
>
> Peter

I did some tests on different machines and configurations to see if I
could find a machine to reproduce it on and then try a different desktop.

1) laptop with Intel HM55 chipset and integrated graphics running Debian
testing with Gnome 3. Self compiled DK 2.5.0.

Could not reproduce it.

2) laptop with Intel GM45 with integrated graphics running Ubuntu 12.04
with Unity and DK 2.5.0 from Ubuntu.

Could not reproduce it.

3) Same laptop and OS and DK as 2) but with Nvidia graphics enabled.

Could not reproduce it.

4) Same laptop as 2) with Intel integrated graphics running Debian
testing with Gnome 3 and self compiled DK 2.5.0.

Could not reproduce it.

5) Same laptop and OS and DK as 4) but with the Nvidia graphics enabled.

Reproduced the bug.

6) My main machine, Intel P43 with Radeon HD 5450 graphics, Debian
testing, Gnome 3 and self compiled DK 2.5.0

Reproduced the bug.

So the common things are Debian testing and non-Intel graphics. I'll see
if I can try KDE on 5) next week if I can find the time.

Andrew
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Re: Scrolling within a set

Jean-François Rabasse

On Fri, 4 May 2012, Andrew Goodbody wrote:

> I did some tests on different machines and configurations to see if I could
> find a machine to reproduce it on and then try a different desktop.
> ...
> 5) Same laptop and OS and DK as 4) but with the Nvidia graphics enabled.
>
> Reproduced the bug.
> ...
> So the common things are Debian testing and non-Intel graphics. I'll see if I
> can try KDE on 5) next week if I can find the time.
>
> Andrew
Hello,

Just an info that might help, or not...

I have a NVIDIA video board and I had that problem of garbled display, but
not only with Digikam, other graphic applications produced similar dirty
behaviours (e.g. Dolphin, Firefox).

I replaced the « Nouveau » video driver that comes with Linux distros to
support NVIDIA hardware by the proprietary NVIDIA driver for Linux/Xorg,
downloaded from NVIDIA web site.

All graphic displays are perfect now, Digikam and others.

I didn't investigate much, but from I could see, I suspect an incorrect
implementation of X11 backingstore/saveunder functionnalities, in the
Nouveau driver.

Don't know if this could help but I'll suggest to users having that display
problem with a NVIDIA board to install the proprietary driver. It takes one
minute, and the NVIDIA installer backups the Xorg configuration file, so
it's possible to switch back to previous configuration if the result isn't
satisfying.

Regards,
Jean-François

PS: I run OpenSUSE & KDE, but in my case the problem really looked like
a X11/Xorg problem, not an O.S. or Deskop related problem.
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