[syslinux] Dualhead issue

H. Peter Anvin hpa at zytor.com
Wed Aug 16 12:46:46 PDT 2017

On 08/15/17 04:53, Ralf Mardorf via Syslinux wrote:
> Hi,
> my primary monitor is a LCD HDMI2 and the secondary monitor is a CRT
> VGA1. The CRT monitor is only turned on on demand, but always connected
> by VGA.
> The BIOS is shown on both monitors, but the syslinux menu only on the
> CRT, as long as the CRT is connected by VGA. Even if it's turned off,
> the syslinux menu isn't shown on the LCD connected by HDMI.
> [root at archlinux ~]# pacman -Q syslinux 
> syslinux 6.03-7
> Is there a way to get the syslinux menu displayed on both monitors or at
> least only on the LCD monitor?
> FWIW xrandr shows HDMI1 and HDMI2, but there is only one HDMI output
> assigned to HDMI2.
> Regards,
> Ralf

Is that true for vesamenu only, or even for text mode syslinux?

Most likely there isn't much that syslinux can do about it, since it
relies on the BIOS to set up the screen for it.


More information about the Syslinux mailing list