http://bugs.freedesktop.org/show_bug.cgi?id=24150
Summary: tv out issues with radeon kms drm-next
Product: Mesa
Version: git
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/DRI/Radeon
AssignedTo: dri-devel@lists.sourceforge.net
ReportedBy: li...@andyfurniss.entadsl.com
Tv is CRT connected with s-video
Card is rv670 (Sapphire HD3850 AGP)
Monitor is PAL CRT connected with DVi -> VGA adapter.
Issue 1.
After loading modules using fbcon (1024x768 on monitor) TV mentions 1920x1200
and the output on TV is incorrect. Screen is split into two halves, the left
displaying correctly but squashed and the right side is a shifted slightly left
and cropped copy of the right side displayed at half brightness.
drm debug=4 attached, I notice 9 pin DIN is reported, this card has a 7 pin
DIN.
Issue 2.
After starting X the TV display is almost correct cloning 1024x768 monitor.
There are however two half bright green lines at the bottom and I can see from
banding artifacts on Xorg -retro background that either the scale type is
different or it is being scaled to a slightly smaller height.
The green lines do not occur with modeset=0 and the background does not
artifact (Though it will when scaling from other than 1024x768)
I noticed that a slightly different modeline is used between kms and ums for
the TV. The ums is 59.9Hz vs 60Hz for kms.
xrandr --verboses attached.
I tried changing with xrandr but it didn't affect things (but then it seems
that changing modes with different freq doesn't change the ums output either)
Issue 3.
This doesn't actually change anything, but I notice when switching vts between
X and fbcon after a few switches the modes reported become strange. TV still
works as before.
[drm] TV-11: set mode 1024x768 32
executing set pll
executing set crtc timing
[drm] TV-11: set mode 1920x1200 2f
executing set pll
executing set crtc timing
[drm] TV-11: set mode 1024x768 34
executing set pll
executing set crtc timing
[drm] TV-11: set mode 1920x1200 2f
executing set pll
executing set crtc timing
[drm] TV-11: set mode 1152x768 36
executing set pll
executing set crtc timing
[drm] TV-11: set mode 1920x1200 2f
executing set pll
executing set crtc timing
[drm] TV-11: set mode 640x480 38
executing set pll
executing set crtc timing
[drm] TV-11: set mode 1920x1200 2f
executing set pll
executing set crtc timing
[drm] TV-11: set mode 8×200 3a
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