On Mon, 20 Sep 2010, Bruno PrÃmont wrote: > On Mon, 20 September 2010 Guennadi Liakhovetski wrote: > > > Of course, the optimal solution would be to design and implement a > > mechanism to notify framebuffer users about a changed fb configuration, > > but we're not that far yet... > > This would include ABI change for userspace, hard to get it trough... > (except maybe if userspace has to opt-in for the notification and kernel > can thus differentiate the "old" and "new" users) Yes, something like that... > But how would you handle userspace apps that can't consume notifications right > away? Do you timeout or risk long stalls? In the same way as they're currently [1] handled: as long as there are active fb-users, I reconfigure the physical interface but preserve the user configuration, i.e., I either display the smaller user framebuffer on a part of the larger display or a part of the larger user framebuffer on the whole smaller display. [1] http://thread.gmane.org/gmane.linux.ports.sh.devel/8751 Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
