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SLES XEN does not startup in GUI when framebuffer driver is used

This document (7018268) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 12 Service Pack 2 (SLES 12 SP2)


SLES 12 SP2 XEN starts up in text mode (CLI) rather than graphics mode (GUI) when using the framebuffer driver, fbdev.   (The framebuffer driver is the inbox hardware-independent graphics driver.  It is the fall-back option that is used when a hardware-specific graphics driver is not available.)


grub2-mkconfig needs to add "vga=gfx-1024x768x16" to the multiboot lines for the XEN hypervisor in grub.cfg.  This can be done as follows:

1. Edit /etc/default/grub and add GRUB_CMDLINE_XEN="vga=gfx-1024x768x16".
2. Run grub2-mkconfig -o /boot/grubs/grub.cfg.
3. Reboot to XEN.


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7018268
  • Creation Date: 14-Nov-2016
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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