Robert P. J. Day wrote: > Quoting Ed Greshko <Ed.Greshko@xxxxxxxxxxx>: > >> Robert P. J. Day wrote: >>> Quoting Ed Greshko <Ed.Greshko@xxxxxxxxxxx>: >>> >>>> Ed Greshko wrote: >>>>> Robert P. J. Day wrote: >>>>> >>>>>> ok, i've fought with this for a bit but still have no >>>>>> solution. to >>>>>> recap, dell inspiron 9200, WUXGA (1920x1200) display, now running >>>>>> F9, >>>>>> runs in full WUXGA mode out of the box perfectly. >>>>>> >>>>>> the instant i connect via VGA to a video processing unit (sorry, i >>>>>> can't be more specific, i'm not allowed), when i restart the X >>>>>> server, >>>>>> it comes up in 1152x864. why is this? what is it about X that >>>>>> connecting to an external VGA destination will drive the >>>>>> resolution on >>>>>> the laptop lower? i'm baffled. >>>>>> >>>>>> >>>>> The first place I would look is in /var/log/Xorg.0.log and >>>>> determine if >>>>> there is a difference between when X starts with the unit >>>>> connected and >>>>> when not connected. The log file is generated upon X starting. >>>>> >>>> I should have added that this is probably hardware related. >>>> Chances are >>>> the video chipset detects that it is attached to an external device >>>> and >>>> the external hardware is limited to the lower resolution and thus >>>> reports this at X startup. >>> >>> i'd thought of that, but i was *assured* by people who should know >>> that >>> the external hardware is not reporting anything back to the laptop. >>> and >>> forgive my video-related ignorance, but what is *normally* reported >>> back? >>> in what format? and is there a way to tap that info in real time (a la >>> tcpdump)? or is just checking the X log file the way to go? thanks. >>> >>> >> It may not be reporting anything at all. The chipset simply detects >> electrical connections on the external jack and does its thing. I think >> you will see a difference in the log file that indicates the higher >> resolutions are not supported...I forget the exact wordings > > ok, i'll get a chance to check that when i get into the workplace. but > is there any way to de-activate that checking within X? from what you've > written, i'm assuming that the X server sees what's happening, and > consequently > scales back on the resolution as a result. is there an option to tell > X to simply ignore that and go with full WUXGA no matter what? thanks. > Not that I know of. The HW is reporting to X what its capabilities are and even if you tell X to ignore what the HW is saying the HW probably won't respond to it very well. :-) -- Ten years of rejection slips is nature's way of telling you to stop writing. -- R. Geis -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
