Xfce Forum

loupe

Member

Registered: Today

Posts: 3

Massive regression in Ristretto (Debian 13)

Hi, I installed Debian 13 and viewing images in Ristretto has regressed to a point where the image viewer is unusable.

If I open a large high quality photo that is around 15MB in size, it will be extremely grainy and jagged. If I zoom in, it looks good. But as long as I'm zoomed out, it looks horrible. If I enable "Enable smoothing" in preferences, it becomes slightly better but still awful. If I enable "Limit rendering quality" in preferences too, it looks good. It looks like I expect it to, however if I now zoom in on the photo, it's like a low resolution photo, so that is awful too.

Do I have to jump ship here? There aren't any other settings in the menu, what can I do to make it look good again? On Debian 12 there wasn't an issue, I'm looking at the same photos as before and what used to look good now looks either horrible, jagged and grainy, or extremely low resolution.

I tried loupe, a different image viewer and it doesn't have this problem, but it lacks some features that I love in Ristretto so I would rather stay.

eriefisher

Wanderer

From: ON, Canada

Registered: 2008-10-25

Posts: 834

Re: Massive regression in Ristretto (Debian 13)

I normally use Viewnior but I just tried Ristretto with several different pics and it looks fine. What type of image are you using? Do you have all the supporting libraries installed?

From the docs:

The image types supported by Ristretto are those supported by the gdk-pixbuf library. This library itself supports a number of basic image types (JPEG, PNG, TIFF, etc.), but then relies on optional libraries to extend the range of supported image types. This means that you will have to install these libraries yourself to extend the range of image types supported by Ristretto. Examples: libwmf, libopenraw, libavif, libheif, libjxl, librsvg, webp-pixbuf-loader.

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I AM CANADIAN!
Siduction
Debian Sid
Xfce 4.20 with Wayland/Labwc

loupe

Member

Registered: Today

Posts: 3

Re: Massive regression in Ristretto (Debian 13)

I normally use Viewnior but I just tried Ristretto with several different pics and it looks fine. What type of image are you using? Do you have all the supporting libraries installed?

Try this image from Wikimedia in full quality. If I view it without enabling "Limit rendering quality" it will look like the sharpness has been turned up way too high. If I enable it, it looks good. But when the render quality is limited and you zoom in, the quality is terrible.

1. Without limit quality on

2. With limit quality on

3. Without limit quality on (zoom)

4. With limit quality on (zoom)

eriefisher

Wanderer

From: ON, Canada

Registered: 2008-10-25

Posts: 834

Re: Massive regression in Ristretto (Debian 13)

If I zoom in it gets fuzzy but it's a pretty small file 373kb so likely low resolution. I also tried it in Viewnior and it looked pretty much the same to my eyes.

Added later 05 min 36 s:
I just downloaded the full resolution pic, opened in Ristretto, without limit quality it will look great. With limit quality it gets fuzzy as I zoom in.

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I AM CANADIAN!
Siduction
Debian Sid
Xfce 4.20 with Wayland/Labwc

Tamaranch

Member

From: France

Registered: 2020-12-31

Posts: 405

Website

Re: Massive regression in Ristretto (Debian 13)

It appears to be a regression between 0.13.2 and 0.13.3, I'm looking into it.

Added later 1 h 37 min 27 s:
Should be fixed by https://gitlab.xfce.org/apps/ristretto/ … 1268c63ecc

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Xfce dev: https://gravatar.com/gaelbonithon

loupe

Member

Registered: Today

Posts: 3

Re: Massive regression in Ristretto (Debian 13)

It appears to be a regression between 0.13.2 and 0.13.3, I'm looking into it.

Added later 1 h 37 min 27 s:
Should be fixed by https://gitlab.xfce.org/apps/ristretto/ … 1268c63ecc

Wow, thanks. Is there any hope for getting this into Debian 13 or will I have to wait until Debian 14?

Is it difficult to compile and package it myself with that change for Debian 13? Thank you so much.