On Thursday, June 10, 2010 00:31:20 Charles Butterfield wrote: > I suspect the nouveau driver is swapping or mislabeling the two video > streams that the NVS-290 card generates. Here are my clues: > > Setup > - Fedora-13 and nouveau driver (latest yum updates as of midnight) > - NVIDIA NVS-290 video card > - nouveau exposes 2 outputs to XRandR (DVI-I-1 and DVI-I-2) > - The NVS-290 video card has a DMS-59 connector, with a > short DMS-59 to Dual VGA cable with VGA connectors > labeled 1 and 2. > - VGA connectors #1 and #2 are connected to monitors #1(Left) > and #2(Right). > > Behavior > 1) At boot time, before the nouveau driver is involved, the boot text is > output on the VGA connector labeled "1", which is connected to > monitor > #1 (on my left). > 2) At GDM login time, monitor #1 is clearly assigned to the right of the > Virtual screen (its right edge is "impenetrable") while monitor #2 is > on the left side. Weird, but in theory just an odd default. But > wait. > 3) Inspecting the "xrandr" output, it is clear that pixels on the > virtual > screen that are directed to "DVI-I-1" are going to monitor #2 and > vice versa (DVI-I-2 goes to monitor #1). I checked the default > situation, then flipped the two halves of the virtual screen back > and forth with xrandr, checking the xrandr status each time. > 4) The last bit of weirdness is that the xrandr geometry setting > commands > seemed reversed from what would be expected. Maybe that is the > inevitable result of mislabeling the data stream, or perhaps it is an > important clue in its own right. My head hurts at the point. > > Misc > 5) Oh yes, I buzzed out the cable, just in case it was mis-wired or > mis-labled. It's fine, that is DMS59:VGA2_RED -> VGA#2:RED, etc. > > > Please advise if this should be posted somewhere else. I guess you've hit the same bug as me, I even have the same video card. Bug was reported here: https://bugzilla.redhat.com/show_bug.cgi?id=582582 but it was closed as notabug Michal -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
