During an attempt to solve the problem myself I discovered *) The problem did not exist on ubuntu 17.04 *) When removing the option `gfxmode $linux_gfx_mode` in the grub2 boot config. It boots perfectly fine. *) When investigating the value `$linux_gfx_mode` in the boot console, the value is `keep`. *) According to the grub2 manual (https://www.gnu.org/software/grub/manual/grub/html_node/gfxmode.html), then `keep` is not a valid value for the `gfxmode` variable. However the value `keep` is a valid value for the `gfxpayload` variable, see https://www.gnu.org/software/grub/manual/grub/html_node/gfxpayload.html#gfxpayload
And when looking into how the `$linux_gfx_mode` is assigned the value in the `/boot/grub/grub.cfg` (line 119-136) where it achieves either the value `text` or `keep`. It looks like this value should be used to set the `gfxpayload` variable in stead of `gfxmode`. ** Summary changed: - Graphics is corrupt up on VT1-VT7 even during boot + Graphics is corrupt on VT1-VT7 even during boot -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1736023 Title: Graphics is corrupt on VT1-VT7 even during boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1736023/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
