I have an NVIDIA card, and it's running on X11 (no Wayland). Besides the libwebkit2gtk change from 2.48.1-3 to 2.48.3-1, the upgrade included the NVIDIA driver going from 535.247.01-1 to 550.163.01-1.
Running with the suggested environment variables to disable DMABUF suppresses the error from nv_gbm.c but makes no difference when it comes to the background in the messages: $ WEBKIT_DISABLE_DMABUF_RENDERER=1 evolution (org.gnome.Evolution:720943): camel-WARNING **: 08:06:28.309: Could not open converter for 'iso-646-us' to 'UTF-8' charset (org.gnome.Evolution:720943): camel-WARNING **: 08:06:33.650: Could not open converter for 'UNKNOWN' to 'UTF-8' charset Trying to force DMABUF still throws one error instead of two, but again there's no difference when it comes to the mesagges background: $ WEBKIT_FORCE_DMABUF_RENDERER=1 evolution src/nv_gbm.c:288: GBM-DRV error (nv_gbm_create_device_native): nv_common_gbm_create_device failed (ret=-1) (org.gnome.Evolution:721228): camel-WARNING **: 08:10:27.268: Could not open converter for 'iso-646-us' to 'UTF-8' charset (org.gnome.Evolution:721228): camel-WARNING **: 08:10:32.521: Could not open converter for 'UNKNOWN' to 'UTF-8' charset This is the system report given by GNOME Settings: # System Details Report --- ## Report details - **Date generated:** 2025-06-18 08:21:29 ## Hardware Information: - **Hardware Model:** Lenovo ThinkPad P15 Gen 1 - **Memory:** 32.0 GiB - **Processor:** Intel® Core™ i9-10885H × 16 - **Graphics:** Quadro T2000 - **Graphics 1:** Quadro T2000 - **Disk Capacity:** 3.0 TB ## Software Information: - **Firmware Version:** N30ET57W (1.40 ) - **OS Name:** Debian GNU/Linux 13 (trixie) - **OS Build:** (null) - **OS Type:** 64-bit - **GNOME Version:** 48 - **Windowing System:** X11 - **Kernel Version:** Linux 6.12.30-amd64 On Wed, 2025-06-18 at 12:37 +0200, Alberto Garcia wrote: > On Tue, Jun 17, 2025 at 10:52:59PM -0500, John M. wrote: > > After an apt upgrade over the weekend (and system reboot), > > evolution > > emails are displayed with a white background, even with dark > > mode/theme enabled. That's an accessibility-related issue for me. > > Hi, do you have an NVIDIA graphics card? > > Can you try running evolution with this environment variable? > > WEBKIT_DISABLE_DMABUF_RENDERER=1 > > And what happens if you use this one instead? > > WEBKIT_FORCE_DMABUF_RENDERER=1 > > Thanks, > > Berto
