I manually downgraded those with dpkg, but had to remove libwebkit2gtk- 4.1-dev (synaptic reports it as broken).
With that, a reboot, and removing the gtk.css file at ~/.config/gtk- 3.0, evolution launches with: $ 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:8440): camel-WARNING **: 12:18:23.666: Could not open converter for 'iso-646-us' to 'UTF-8' charset (org.gnome.Evolution:8440): camel-WARNING **: 12:18:29.311: Could not open converter for 'UNKNOWN' to 'UTF-8' charset Even though there's still an nv_gbm.c error, evolution now properly sets the background to dark, regardless of the email's colors. So, the webkit2gtk upgrade was definitely the issue here. Liferea, on the other hand, still shows no previews. But the terminal shows more stuff: $ liferea src/nv_gbm.c:288: GBM-DRV error (nv_gbm_create_device_native): nv_common_gbm_create_device failed (ret=-1) src/nv_gbm.c:288: GBM-DRV error (nv_gbm_create_device_native): nv_common_gbm_create_device failed (ret=-1) KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied Failed to create GBM buffer of size 469x184: Permission denied <sys>:0: Warning: g_atomic_ref_count_dec: assertion 'old_value > 0' failed <sys>:0: Warning: g_uri_is_valid: assertion 'uri_string != NULL' failed <sys>:0: Warning: g_bytes_get_size: assertion 'bytes != NULL' failed <sys>:0: Warning: g_bytes_get_data: assertion 'bytes != NULL' failed I'm not sure if the extra stuff is related to a new link in the updated feeds (since liferea checks for updates at startup). -- John M. On Wed, 2025-06-18 at 18:07 +0200, Alberto Garcia wrote: > On Wed, Jun 18, 2025 at 10:19:54AM -0500, John M. wrote: > > Downgrading anything in Debian is never easy, and the NVIDIA driver > > involves 60 different packages. > > How about downgrading WebKitGTK? > > It should be enough with the ones that you have installed from this > list: > > gir1.2-javascriptcoregtk-4.1 > gir1.2-webkit2-4.1 > libjavascriptcoregtk-4.1-0 > libjavascriptcoregtk-4.1-dev > libwebkit2gtk-4.1-0 > libwebkit2gtk-4.1-dev > > Berto
