Hello, On Mon, Jan 22, 2018 at 08:30:01AM +0100, rollopack wrote: > Every times a windows is draw thunderbird return the error: > > [GFX1-]: Failed to lock new back buffer. > > The result is an empty black window.
I have just seen this if I have compiled Thunderbird with GCC7. Could you give some more information about your environment you are using? Which DE you are running on? Do you have any old extensions installedd and active? Do you have any local installed add-ons or extensions running? Do you have tried to remove or deactivate them? Do have the same issues vissible with a new profile? > Versions of packages thunderbird suggests: > ii apparmor 2.12-1 > ii fonts-lyx 2.2.3-2 > ii libgssapi-krb5-2 1.15.2-2 Do have tried to disable the TB apparmor profile or to start with a removed apparmor package? Regards Carsten
