On 2018-03-07 02:54 PM, KARBOWSKI Piotr wrote: > On 2018-03-07 20:31, KARBOWSKI Piotr wrote: >> On 2018-03-07 20:12, Harry Wentland wrote: >>> Thanks for testing. >>> >>> What do you mean with broken video? I tried going back in the email thread >>> but I'm not 100% clear what you mean by this. >>> >>> BTW, drm-fixes-4.16 are fixes we intend to get into the 4.16 upstream >>> kernel. amd-staging-drm-next is our development tree and quite a bit >>> farther ahead in development. I'm trying to find fixes to backmerge to 4.16 >>> to make everyone happy when it releases. >> >> Like on those screenshots >> >> >> https://i.imgur.com/qnDOKY7.jpg >> https://i.imgur.com/XH42zit.jpg >> >> To describe it better, lets split the screen into 4 segments >> >> +-----+-----+ >> | A | B | >> +-----+-----+ >> | C | D | >> +-----+-----+ >> >> The screen resolution kicks in as it should, 1080p, then A displays proper >> part of screen, around 25%, then B contain a copy of what A displays, so the >> same 25% of top-left part of screen, then C and D remain black, if I scroll >> the screen a bit, C and D an get a bold vertical line of whatever color was >> on screen, if I had a white/gray font, it will be it, if there was some blue >> text, it will be blue until I scroll a bit more. >> >> >> drm-fixes-4.16 yield the same effect as amd-staging-drm-next without >> 0001-drm-amd-display-Fix-takeover-from-VGA-mode.patch, but it seems that >> htis patch is already in drm-fixes-4.16 so I am confused. > > I was not correct. > > The drm-fixes-4.16 is a bit better It fixes half of my issue! So with this > handy ascii art of mine > > +-----+-----+ > | A | B | > +-----+-----+ > | C | D | > +-----+-----+ > > A and C works, so I have full termianl on left side. but B remains copy of A > and D either is black of have the fancy line. >
amd-stg has some other patches relating to DCN pipe-split that I don't fully understand. We might need one or more of those. As a workaround you can probably set 'force_single_disp_pipe_split' to 'false' in 'debug_defaults_drv' in dc/dcn10/dcn10_resource.c. Harry > I compared manually the patch that did worked for me and it seems it was not > fully applied, the .h and .c does not look the same. Perhaps that's the > source here. > > -- Piotr. _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
