I think it is related to the graphics driver (I am using i915) so I issued the bug for the xserver-xorg-video-intel package which provides that driver. I have tried booting different kernels, for example 4.4.0-66-generic https://packages.ubuntu.com/xenial/linux- image-4.4.0-66-generic but I forgot to install linux-image- extra-4.4.0-66-generic https://packages.ubuntu.com/xenial/linux-image- extra-4.4.0-66-generic
The result is that many of my kernel modules were missing (e.g., my WiFi driver, my graphics driver, my EVDI driver, etc.). When I booted in this state obviously many things were not working. But, my Firefox menus were working. My display was using some fallback driver presumably, which gave me a working low-res display. If I then install linux-image-extra-4.4.0-66-generic and reboot everything would be "back to normal" except that I was running on a slightly older kernel. However, the menus on Firefox would re-break. So there is almost definitely some kernel module that is causing the problem. I can do repeat these test and provide more details if it's helpful. Also, https://bugs.launchpad.net/bugs/1782096 sounds identical (as well as the bug that is referenced in the comments of 1782096). -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1782052 Title: Firefox "hamburger" menu not visible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1782052/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
