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</style></head><body><div>I manually downgraded those with dpkg, but had to remove <span style="font-family: "Hack Nerd Font Mono";">libwebkit2gtk-4.1-dev (synaptic reports it as broken).</span></div><div><br></div><div>With that, a reboot, and removing the gtk.css file at ~/.config/gtk-3.0, evolution launches with:</div><div><br></div><div style="margin-left: 3ch;"><font face="monospace">$ evolution</font></div><div style="margin-left: 3ch;"><font face="monospace">src/nv_gbm.c:288: GBM-DRV error (nv_gbm_create_device_native): nv_common_gbm_create_device failed (ret=-1)</font></div><div style="margin-left: 3ch;"><font face="monospace"><br></font></div><div style="margin-left: 3ch;"><font face="monospace">(org.gnome.Evolution:8440): camel-WARNING **: 12:18:23.666: Could not open converter for 'iso-646-us' to 'UTF-8' charset</font></div><div style="margin-left: 3ch;"><font face="monospace"><br></font></div><div style="margin-left: 3ch;"><font face="monospace">(org.gnome.Evolution:8440): camel-WARNING **: 12:18:29.311: Could not open converter for 'UNKNOWN' to 'UTF-8' charset</font></div><div style="margin-left: 3ch;"><br></div><div>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.</div><div><br></div><div>Liferea, on the other hand, still shows no previews. But the terminal shows more stuff:</div><div><br></div><div style="margin-left: 3ch;"><font face="monospace">$ liferea</font></div><div style="margin-left: 3ch;"><font face="monospace">src/nv_gbm.c:288: GBM-DRV error (nv_gbm_create_device_native): nv_common_gbm_create_device failed (ret=-1)</font></div><div style="margin-left: 3ch;"><font face="monospace"><br></font></div><div style="margin-left: 3ch;"><font face="monospace">src/nv_gbm.c:288: GBM-DRV error (nv_gbm_create_device_native): nv_common_gbm_create_device failed (ret=-1)</font></div><div style="margin-left: 3ch;"><font face="monospace"><br></font></div><div style="margin-left: 3ch;"><font face="monospace">KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied</font></div><div style="margin-left: 3ch;"><font face="monospace">KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied</font></div><div style="margin-left: 3ch;"><font face="monospace">Failed to create GBM buffer of size 469x184: Permission denied</font></div><div style="margin-left: 3ch;"><font face="monospace"><sys>:0: Warning: g_atomic_ref_count_dec: assertion 'old_value > 0' failed</font></div><div style="margin-left: 3ch;"><font face="monospace"><sys>:0: Warning: g_uri_is_valid: assertion 'uri_string != NULL' failed</font></div><div style="margin-left: 3ch;"><font face="monospace"><sys>:0: Warning: g_bytes_get_size: assertion 'bytes != NULL' failed</font></div><div style="margin-left: 3ch;"><font face="monospace"><sys>:0: Warning: g_bytes_get_data: assertion 'bytes != NULL' failed</font></div><div style="margin-left: 3ch;"><br></div><div>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).</div><div><br></div><div>--</div><div>John M.</div><div><br></div><div><br></div><div><span></span></div><div>On Wed, 2025-06-18 at 18:07 +0200, Alberto Garcia wrote:</div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div>On Wed, Jun 18, 2025 at 10:19:54AM -0500, John M. wrote:<br></div><blockquote type="cite" style="margin:0 0 0 .8ex; border-left:2px #729fcf solid;padding-left:1ex"><div>Downgrading anything in Debian is never easy, and the NVIDIA driver<br></div><div>involves 60 different packages.<br></div></blockquote><div><br></div><div>How about downgrading WebKitGTK?<br></div><div><br></div><div>It should be enough with the ones that you have installed from this<br></div><div>list:<br></div><div><br></div><div>gir1.2-javascriptcoregtk-4.1<br></div><div>gir1.2-webkit2-4.1<br></div><div>libjavascriptcoregtk-4.1-0<br></div><div>libjavascriptcoregtk-4.1-dev<br></div><div>libwebkit2gtk-4.1-0<br></div><div>libwebkit2gtk-4.1-dev<br></div><div><br></div><div>Berto<br></div></blockquote></body></html>