Bad fonts in "cirrus" VGA card.

Host environment

• Operating system: Various
• OS/kernel version: Various
• Architecture: ARM/x86-64
• QEMU flavor: qemu-system-i386
• QEMU version: Various (5.x/6.x/7.x)
• QEMU command line:

  qemu-system-i386 <...> -vga cirrus

Emulated/Virtualized environment

• Operating system: Various Linux distros (all released from 90s to 2001-2002.
• OS/kernel version: Various
• Architecture: i386

Description of problem

Similar to #988. Fixed by set "no_bitblt" and "sw_cursor" in XF86Config file.

Steps to reproduce

Similar to #988.

Additional information