On Fri, Sep 30, 2016 at 11:37:57AM +0200, Bartosz Golaszewski wrote: > 2016-09-29 20:58 GMT+02:00 Karl Beldan <karl.bel...@gmail.com>: > > Hi, > > > > On Thu, Sep 29, 2016 at 06:31:53PM +0200, Bartosz Golaszewski wrote: > >> Add svga timings for 1024x768 resolution to the da850-lcdk > >> device tree. > >> > > > > [snip] > > > > > Why do you also call 1024x768 svga ? > > > > Thanks, should have been xga. will fix in v2. > > > I don't think the LCDK can cope with this resolution at this frequency > > (in terms of mem bandwidth), at least that's what I observed back in > > August. If confirmed I think it is worth mentioning in the log at least, > > but then I doubt adding this config would be useful. > > > > Thanks for the heads up. How would that manifest itself? This seems to > work fine for me - I'm not getting any warnings on a simple system - > maybe if I added some additional memory load it would complain. >
A mere dmesg > /dev/tty0 (or repeatedly cat-ting a file to /dev/tty0) should suffice to make the issue visible and trigger FIFO underflows. Regards, Karl