Bug 263645 - [GTK] The rendering of the fonts look blurred (NVIDIA card), if I launch the application with WEBKIT_DISABLE_COMPOSITING_MODE=1 they look perfect
Summary: [GTK] The rendering of the fonts look blurred (NVIDIA card), if I launch the ...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebKitGTK (show other bugs)
Version: WebKit Local Build
Hardware: PC Linux
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-10-25 03:13 PDT by Óscar
Modified: 2024-03-29 06:04 PDT (History)
4 users (show)

See Also:

Attachments
cinny_bad.png, blurring of fonts visible. cinny_ok.png app launched with WEBKIT_DISABLE_COMPOSITING_COMPOSITING_MODE=1 (38.79 KB, application/x-xz)
2023-10-25 03:13 PDT, Óscar 		no flags Details
Good rendering, with WEBKIT_DISABLE_COMPOSITING_COMPOSITING_MODE=1 (19.19 KB, image/png)
2023-10-25 03:41 PDT, Adrian Perez 		no flags Details
Bad rendering (27.25 KB, image/png)
2023-10-25 03:41 PDT, Adrian Perez 		no flags Details
Show Obsolete (1) View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Óscar 2023-10-25 03:13:34 PDT 
Created attachment 468328 [details]
cinny_bad.png, blurring of fonts visible. cinny_ok.png app launched with WEBKIT_DISABLE_COMPOSITING_COMPOSITING_MODE=1

First of all my apologies if this bug is duplicated, I have been searching but have not found anything similar except for #261874 but it describes a different behaviour. Possibly both bugs are related.

Fonts are rendered blurred with WebKitGTK unless the application is launched with WEBKIT_DISABLE_COMPOSITING_COMPOSITING_MODE=1. It is highly possible that this only happens with NVIDIA cards and proprietary drivers with X11.

Card: NVIDIA GeForce RTX 2060 SUPER
WebKitGTK version: 2.42.1
Environment: GNOME 45.0 (X11)
Comment 1 Adrian Perez 2023-10-25 03:41:02 PDT 
Created attachment 468329 [details]
Good rendering, with WEBKIT_DISABLE_COMPOSITING_COMPOSITING_MODE=1

(File extracted from tarball, for convenience.)
Comment 2 Adrian Perez 2023-10-25 03:41:38 PDT 
Created attachment 468330 [details]
Bad rendering

(File extracted from tarball, for convenience.)
Comment 3 Óscar 2024-03-29 06:04:24 PDT 
The situation with recent versions has worsened. Now it simply displays nothing and gives the following error repeated several times.

AcceleratedSurfaceDMABuf was unable to construct a complete framebuffer

With WEBKIT_DISABLE_COMPOSITING_COMPOSITING_MODE=1 it still works well.