#9333 BLOC 1.5-F11: screen flicker in X
Zarro Boogs per Child
bugtracker at laptop.org
Wed Oct 21 16:10:27 EDT 2009
#9333: screen flicker in X
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Reporter: dsd | Owner: dsd
Type: defect | Status: new
Priority: blocker | Milestone: 1.5-F11
Component: x window system | Version: not specified
Resolution: | Keywords:
Next_action: diagnose | Verified: 0
Deployment_affected: | Blockedby:
Blocking: |
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Comment(by wmb at firmworks.com):
I suppose the problem might be related to the timing parameters we have
chosen. If the timing is marginal with respect to the requirements of the
DCON+panel hardware, the screen might briefly lose sync in certain cases.
One such case might be some kinds of redraws that might cause noise to be
coupled into the timing lines.
Sorting this out is made more complicated by the fact that OFW, the Linux
fb driver, and X driver all have their own modesetting code, so the timing
values are not necessarily the same in those cases, even with ostensibly
the same mode.
--
Ticket URL: <http://dev.laptop.org/ticket/9333#comment:17>
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