[Intel-gfx] [PATCH-v2 0/3] drm/i915: interlaced mode support
przanoni at gmail.com
Wed Jan 18 21:39:40 CET 2012
2012/1/18 Peter Ross <pross at xvid.org>:
> This patch set enables enables interlaced mode output on
> generation 3 and above chipsets.
I just tested that on HDMI.
The "interlace_allowed=1" patch seems fine: it made xrandr list more
modes. But I believe patch 1 is still not correct. I tested that and
instead of getting a 1920x1080 I got a 1920x1078 mode: vtotal, vblank
and vsync were wrong. If you look at the patch, you'll see that the
code has some "something -= 1" statements. I believe they could be
So I removed these lines and tested again... Now the mode is actually
1920x1080, but my monitor's OSD displays it as "1080p". So I also
tested my TV and it reported "1080p at 25hz" too.
I guess we're still missing something... I'll try to debug.
Thanks for the patches!
> History here: https://bugs.freedesktop.org/show_bug.cgi?id=11220
> It has been tested on the following hardware:
> * ASUS P5E-VM-HDMI (G35_G) and LG 32FS4D (VGA and SDVO connectors)
> * Intel DQ45CB (Q45_G) and Sony GDM 5411 (VGA connector)
> * Toshiba Portege R500 (I935_GM) and Sony GDM 5411 CRT (VGA connector)
> PATCH HISTORY
> Version 1. Initial cut.
> Version 2. Set timings for gen3 and ILK/SB chipsets.
> Allow interlaced output on HDMI connector.
> Peter Ross (3):
> drm/i915: specify vertical timings in frame units for interlaced
> modes (gen3+)
> drm/i915: allow interlaced mode output on the SDVO connector
> drm/i915: allow interlaced mode output on the HDMI connector
> drivers/gpu/drm/i915/intel_display.c | 14 ++++++++++++++
> drivers/gpu/drm/i915/intel_hdmi.c | 2 +-
> drivers/gpu/drm/i915/intel_sdvo.c | 2 +-
> 3 files changed, 16 insertions(+), 2 deletions(-)
> -- Peter
> (A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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