On 2018-05-12 19:05, awokd wrote:
On Sat, May 12, 2018 4:10 am, Stumpy wrote:
I have finally gotten around to re-tackling my
multi-monitor/multi-graphics chip issue.
I have decided to try booting a few different live distributions to
see
what happened, here is what I have in terms of hardware:
Four monitors, 2 HPs 2 Dells. HPs are in landscape position, Dells are
in Portrait position
The monitors accept VGA, HDMI, and DP
One chipset is on a graphics card, and is an AMD Radeon HD 6570 1GB
DDR3
PCIe x16 - 1 DVI and 2 DP out ports (I think it came out around
2013ish?)
The other is an integrated intel chipset - 1 HDMI and 1 DVI out ports
Try to narrow down the problem. It might be hardware, like your
graphics
chips might not have enough memory to drive all the monitors.
- What happens if you only use 2 monitors on a single adapter? Try both
adapters alone.
- DP monitor by itself?
- Windows 7?
Thanks for the reply.
In testing other distros I was hoping to narrow it down, but I am still
not sure, really not hip on trying win7 (or others) as I don't have a
copy laying around, and linux live distros are so much easier ;)
In some of the live distros I tried, I was able to get a display on all
4 monitors so I am thinking mem isn't the problem (flawed reasoning?)
If I try two displays on the integrated adapter then those two work,
more or less without a hitch.
Some of the distros don't seem to like my (external) graphics card at
all, and some just seem to take issue with the the monitor connected via
DP (I have also tried a DP to DVI adapter I had laying around, nada
still issues).
I have now tried installing Qbes v4 onto a usb flash drive. The xfce
display window was the least buggy compared with most of the distros,
but it seems Qubes 4 doesn't like my graphics card... or something. The
two Dells connected to the exernal graphics card are showing that
multiucolored static no matter what configuation I try (ie rotating,
mirror [which worked well for many of the distros], primary display
etc).
So I am left with the possibility that its the graphics card but as some
of the other distros worked I was hoping that was the wrong
assumption... or maybe I am thinking about it wrong, maybe its xen that
doesn't like the gfx card? (which is the only thing I can think of that
*all* the distros did not have).
I am desprate to get a multi display option working, so am willing to
get another gfx card but as I can't keep doing that I need to be sure
next time.
Thoughts?
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