Under the Advanced options in the second bootloader configuration screen, you can select a video mode from a drop down list. This is ignored when the grub2 configuration is written.
If there is an existing video mode setting (vga=...) in the boot options, this appears in the "Append" string. I believe it is supposed to be extracted and used to set the default video mode selection.
Created attachment 9514 [details]
This needs to be applied after the patch attached to bug 21263 (attachment 9511 [details]).
Adding to the mga5->mga6 upgrade tracker, because it affects people who choose to convert from grub to grub2 - the video mode setting is lost, which can lead to plymouth failing to display the splash screen with some video drivers.
Restoring bug fields to how they were before a troll changed them.
Mageia 7 =>
Created attachment 9823 [details]
Proposed fix v2
Updated to match updated patch in bug 21263 (which needs to be applied first).
Attachment 9514 is obsolete:
Author: Martin Whitaker <mageia@...>
Date: Mon Jul 24 23:07:38 2017 +0100
Fix drakboot video mode selection when using grub2 (mga#21246)
The video mode needs to be extracted from and written back to the
GRUB_CMDLINE_LINUX_DEFAULT parameter in /etc/defaults/grub2.
This fix creates a new "default_vga" key in the $bootloader hash to
hold the current selection. Using the existing "vga" key would cause
the default video mode to be added to any bootloader entries that
don't have a specific "vga" value, e.g. the "failsafe" entry.
The $bootloader "vga" value doesn't appear to be set anywhere else,
so may in fact be obsolete.
Tested in Virtual Box using GRUB2
The VGA=791 is appended if I choose 1024*768*16, after reboot, if I return to drakboot (using MCC), and choose the advanced options, the tool remebers the last selection (OK for ME)
The vga=794 is appended if I choose the 1280*1024*16
This update is good to OK
Fix released in drakxtools-17.88.2-1.mga6.src.rpm.