On Fri, May 10, 2013 at 12:46:00PM +0100, Stefan Olsson wrote:
On 10 May 2013 10:41, Z?? Loff zel...@zeloff.org wrote:
xrandr
-That was good advice to try xrandr instead, however, now I have a problem
with crtc's - I have two crtc, 0 and 1. But I have three monitors - LVDS1,
VGA1 and HDMI1. It seems like I just can not get it to work on all three
monitor at once. My guess is that I would need more crtc's, but is that
even possible?
VGA1 and HDMI1 are identical monitors able for 1680x1050 and should thus be
able to share a crtc, but even if I specify that they both should have crtc
1 and then configure LVDS1 to have crtc 0 I get xrandr: cannot find crtc
for output LVDS1
-Am I fighting a hopless battle? Is it only possible to get to monitors
working at the same time with this graphics card?
You can only have two active pipes/outputs on sandy bridge. With
ivy bridge it should be possible to have three active pipes
if two of them share the same resolution/modelines. There seem
to be some reports of X not quite liking the three pipe setup
with shared clocks though, so it isn't clear if this currently works,
but it won't on your sandy bridge machine as the hardware can't do it.
