2010/8/9 Marius Gröger <marius.groeger@xxxxxxxxxxxxxx>: > Am 09.08.2010 09:33, wrote Alex Deucher: >> >> 2010/8/9 Marius Gröger<marius.groeger@xxxxxxxxxxxxxx>: >>> >>> Am 08.08.2010 20:09, wrote Alex Deucher: >>>> >>>> 2010/8/8 Marius Gröger<marius.groeger@xxxxxxxxxxxxxx>: >>>>> >>>>> Am 08.08.2010 18:22, wrote Alex Deucher: >>>>>>> >>>>>>> Also, I kind of was hoping that once I could use 1280x720 for both >>>>>>> the >>>>>>> console and the X screen, it would would allow me to switch between >>>>>>> the >>>>>>> two >>>>>>> transparently. Instead, the TV takes notice of the switch and needs >>>>>>> some >>>>>>> extra syncing time. Is this expected behaviour? >>>>>> >>>>>> You mean switching underscan off and on or a VT switch? The hw has to >>>>>> reprogram the mode when it changes the underscan. As for a VT switch, >>>>>> it should just be changing the crtc base, but IIRC there was a bug >>>>>> where X and the console used slightly different modes in some cases. >>>>> >>>>> VT switch. I use video=1280x720@50 on the command line and select the >>>>> corresponding EDID resolution within X. Is this bug still pending or is >>>>> my >>>>> scenario supposed to work? >>>> >>>> You may be seeing this issue: >>>> http://lists.x.org/archives/xorg-devel/2010-August/011743.html >>> >>> "In the absence of the user specifying an overriding monitor >>> configuration, trust the KMS drivers to have correctly probed the output >>> modes." >>> >>> Well, in my case I *am* specifying an overriding monitor configuration. >>> Is >>> there still a chance that video=1280x720@50 could be meaning s.th. >>> different >>> then the corresponding mode in X that I explicitly choose. >> >> Can you verify that the console and X are using the same modeline? >> The mode selected by video=1280x720@50 likely has different timing >> than the timing used by the mode in X. Is the VT switch smooth when >> you don't specify the mode on the console or X (i.e., let the driver >> decide on it's own)? > > Ah ok, "likely has different timing" - this is probably the issue here. I'll > be investigating this. Is there a way to influence the timing used by > video=1280x720@50 to match the one used in X? Or should I try finding out > about the console timing and use that as an xorg.conf modeline? Probably the best bet is to match the X timing to the mode used by the console. IIRC, the drm fb code generates the mode using the cvt algo or something like that. Alex _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
