Am 09.08.2010 09:33, wrote Alex Deucher: > 2010/8/9 Marius Gr?ger<marius.groeger at googlemail.com>: >> Am 08.08.2010 20:09, wrote Alex Deucher: >>> >>> 2010/8/8 Marius Gr?ger<marius.groeger at googlemail.com>: >>>> >>>> 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 at 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 at 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 at 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 at 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? Regards Marius
