* [Bug 16651] New: Output of drm_cvt_mode function incorrect for reduced blanking modes
@ 2010-08-21 2:36 bugzilla-daemon
2010-08-23 14:32 ` [Bug 16651] " bugzilla-daemon
2010-08-24 12:25 ` bugzilla-daemon
0 siblings, 2 replies; 3+ messages in thread
From: bugzilla-daemon @ 2010-08-21 2:36 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=16651
Summary: Output of drm_cvt_mode function incorrect for reduced
blanking modes
Product: Drivers
Version: 2.5
Kernel Version: 2.6.35
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
ReportedBy: adam@serbinski.com
Regression: No
drivers/gpu/drm/drm_modes.c
function drm_cvt_mode
When parameter "reduced" is set to TRUE, the hsync_start and hsync_end values
calculated are... wrong, and the vsync_start and vsync_end values aren't
calculated at all.
Output from command "cvt -r 1920 1200":
# 1920x1200 59.95 Hz (CVT 2.30MA-R) hsync: 74.04 kHz; pclk: 154.00 MHz
Modeline "1920x1200R" 154.00 1920 1968 2000 2080 1200 1203 1209 1235 +hsync
-vsync
The values generated by drm_cvt_mode(dev,1920,1200,60,true,false,false) are:
154.00 1920 32 32 2080 1200 0 0 1235 +hsync -vsync
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* [Bug 16651] Output of drm_cvt_mode function incorrect for reduced blanking modes
2010-08-21 2:36 [Bug 16651] New: Output of drm_cvt_mode function incorrect for reduced blanking modes bugzilla-daemon
@ 2010-08-23 14:32 ` bugzilla-daemon
2010-08-24 12:25 ` bugzilla-daemon
1 sibling, 0 replies; 3+ messages in thread
From: bugzilla-daemon @ 2010-08-23 14:32 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=16651
Adam Jackson <ajax@redhat.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ajax@redhat.com
--- Comment #1 from Adam Jackson <ajax@redhat.com> 2010-08-23 14:32:25 ---
Try this patch:
http://lists.freedesktop.org/archives/dri-devel/2010-August/003223.html
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* [Bug 16651] Output of drm_cvt_mode function incorrect for reduced blanking modes
2010-08-21 2:36 [Bug 16651] New: Output of drm_cvt_mode function incorrect for reduced blanking modes bugzilla-daemon
2010-08-23 14:32 ` [Bug 16651] " bugzilla-daemon
@ 2010-08-24 12:25 ` bugzilla-daemon
1 sibling, 0 replies; 3+ messages in thread
From: bugzilla-daemon @ 2010-08-24 12:25 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=16651
Adam Serbinski <adam@serbinski.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |CODE_FIX
--- Comment #2 from Adam Serbinski <adam@serbinski.com> 2010-08-24 12:25:43 ---
That did the job.
Thank you.
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