On 7/2/2019 2:45 PM, Henry Jensen wrote:
Greetings,
to keep it short:
- older Fujitsu Esprimo PC, Core2Duo, Integrated Intel Graphics
- 2 monitors, connected at VGA and DVI
- during installation both monitors were on all the time.
- Computer switched on, both displays on, boot begins
- inteldrm kicks in, the monitor at the DVI port switches OFF (short message on the
display says "power saving mode")
- Xenodm starts, only at 1 display. xrandr reports only 1 monitor, Xorg log
says DVI monitor is disconnected
- similar behaviour on FreeBSD, but:
- on Linux both monitors are working with drm and X.
Where to begin to look?
Kind regards,
Henry
Can you post a dmesg, there were a -lot- of different video chips used
on the core2duo architecture and each has its quirks. Yours might be
actually supported, but a lot of them aren't.
From what I remember, there is some kind of proprietary bit of firmware
that needs to be installed to get both outputs working simultaneously,
but it requires a binary blob to be injected into the driver. IIRC its
some undocumented set of registers that need to get their bits flipped
for the second output to be recognized by the itneldrm code.
