Hi Andreas, 2013/2/28 Andreas Müller <[email protected]>: > Hi, > > I am preparing 3.8 mainline for gumstix overo and have the following > issue: waking Monitor connected by HDMI from power save makes Monitor > complain for unsupported frequency and console says: > > | omapdss APPLY error: FIFO UNDERFLOW on gfx, disabling the overlay > > Is this a known issue?
I'm not sure if it's the same issue, but you might give it a shot. The problem is, that when changing the CPU frequency in OMAP3530, the frequency of L3 is changed. This frequency is used in DSS. The result is a fifo underflow on gfx. First check, if you use some dynamic cpufreq governor, which might be changing the frequency. A workaround (although not very nice) is to set fixed l3_main values in mach-omap2/opp3xxx_data.c Best regards, Matthias > > Andreas > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html -- --- motzblog.wordpress.com -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
