294967 2025-06-25 04:02:24 -0700 [GTK] [2.48.2] REGRESSION: evolution messages are displayed with a white background on NVIDIA 2025-09-27 11:03:42 -0700 1 1 1 Unclassified WebKit WebKitGTK Other PC Linux NEW P2 Normal --- 1 berto webkit-unassigned bugs-noreply mcatanzaro mir oldest_to_newest 2125745 0 berto 2025-06-25 04:02:24 -0700 Some Debian users have reported regressions after having updated WebKitGTK 2.48.1 to 2.48.3. They have NVIDIA GPUs and in Debian we carry this downstream patch to disable the dmabuf renderer by default: https://salsa.debian.org/webkit-team/webkit/-/raw/debian/2.48.3-1/debian/patches/disable-nvidia-dmabuf.patch One reported regression is that evolution emails are displayed with a white background, even with dark mode/theme enabled. There is a bit more information in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1107962 and https://gitlab.gnome.org/GNOME/evolution/-/issues/3078, but the user confirmed that downgrading WebKitGTK to 2.48.1 solves the problem. Another issue is that liferea's previews are not displayed, but in this case 2.48.1 does not seem to be enough to solve the problem. I'll file another report for that issue. 2125765 1 mcatanzaro 2025-06-25 06:57:50 -0700 Narrowing it down to 2.48.2 vs. 2.48.3 would be useful. A bisect would be even better. 2125831 2 berto 2025-06-25 11:08:10 -0700 It seems that 2.48.2 is also broken, so the problem happened between 2.48.1 and 2.48.2 2144641 3 mir 2025-09-20 07:43:04 -0700 (In reply to Alberto Garcia from comment #2) > It seems that 2.48.2 is also broken, so the problem happened between 2.48.1 > and 2.48.2 On Debian Sid the version before upgrade was working. Version before upgrade: libwebkit2gtk-4.1-0:amd64 (2.48.5-1+b1, 2.48.6-1) Version after upgrade: libwebkit2gtk-4.1-0:amd64 (2.48.6-1, 2.50.0-1) 2144681 4 mir 2025-09-20 16:51:34 -0700 Actually all versions after 2.48.6-1 is broken. Current version in Sid is 2.50.0-1 Downgrading to these versions fixes the problem: gir1.2-javascriptcoregtk-4.1_2.48.6-1_amd64.deb gir1.2-webkit2-4.1_2.48.6-1_amd64.deb libjavascriptcoregtk-4.1-0_2.48.6-1_amd64.deb libjavascriptcoregtk-4.1-dev_2.48.6-1_amd64.deb libwebkit2gtk-4.1-0_2.48.6-1_amd64.deb libwebkit2gtk-4.1-dev_2.48.6-1_amd64.deb 2144721 5 berto 2025-09-21 11:59:46 -0700 That's because 2.50.0-1 in Debian does not disable the DMABUF renderer if an NVIDIA card is detected. This can be worked around with the WEBKIT_DISABLE_DMABUF_RENDERER=1 environment variable. But I think I'll need to patch WebKit again so it's disabled automatically. 2146467 6 berto 2025-09-27 09:43:34 -0700 2.50.0-2 is now in Debian, it should fix the NVIDIA problems with 2.50.0-1, can you give it a try? 2146486 7 mir 2025-09-27 11:03:42 -0700 (In reply to Alberto Garcia from comment #6) > 2.50.0-2 is now in Debian, it should fix the NVIDIA problems with 2.50.0-1, > can you give it a try? I already replied here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1107962#142 Summary: Everything works ;-)