On Fri, 2012-05-04 at 16:50 +0300, Tomi Valkeinen wrote: > On Fri, 2012-05-04 at 10:19 +0100, Joe Woodward wrote: > > -----Original Message----- > > From: Tomi Valkeinen <tomi.valkeinen@xxxxxx> > > To: Joe Woodward <jw@xxxxxxxxxxxxxx> > > Cc: Archit Taneja <a0393947@xxxxxx>, linux-omap@xxxxxxxxxxxxxxx > > Date: Thu, 03 May 2012 16:07:22 +0300 > > Subject: Re: Problems with 3.4-rc5 > > > > > On Thu, 2012-05-03 at 09:49 +0100, Joe Woodward wrote: > > > > > > > Both patches together results in slightly different behaviour, the > > > display is still broken- > > > > it flickers on and off with occassional underflows before breaking > > > completely. > > > > > > Beagle works fine for me with omap2plus based config, and I think overo > > > also although I can't test it now as I broke my micro mmc adapter. > > > > > > Can you send your panel definition? Any other things that could affect > > > display? Do you have PM enabled? Can you share your kernel config? > > > > > > Tomi > > > > > > > I've gone back to a test setup others can replicate. > > Ok, I can replicate it now. It seems to be somehow PM related. I > normally have USB gadget stuff compiled into kernel so that I can boot > via nfsroot with usb. After disabling USB support from the kernel, I can > see synclosts. > > I have no idea yet what could be causing this. I've also tried adding > the couple of DSS patches which are in queue for next merge window, that > force OPP100 when DSS is enabled. They don't seem to help. Also, at least on my setup, the sync lost doesn't happen very quickly after starting the video output, but (I think) only when the system starts to idle. My init scripts generate keys for sshd and some other stuff, and no sync lost there, only just before the shell prompt do I get a sync lost. Tomi
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