Nouveau To Enter The Ubuntu 10.04 LTS Kernel (Phoronix)

Posted Nov 23, 2009 20:21 UTC (Mon) by opalmirror (subscriber, #23465)
In reply to: Nouveau To Enter The Ubuntu 10.04 LTS Kernel (Phoronix) by rahulsundaram
Parent article: Nouveau To Enter The Ubuntu 10.04 LTS Kernel (Phoronix)

Nouveau's integration in Fedora 12 is excellent, both in framebuffer mode in graphical boot and full integration with gnome. I only wish that video played without jerky dropouts. nVIDIA's proprietary driver will work in Fedora, and full screen video runs fine, but I have to delete nouveau from the initramfs, losing the framebuffer, dropping back to text-based booting, and its integration with the gnome desktop requires frobbing through the proprietary config tools for things like adding and dropping a second display. I will drop it in an instant once nouveau has smooth full-screen video support. Yes, I'm one of *those* people willing to sully my free OS with nonfree components. Sinner!

Nouveau To Enter The Ubuntu 10.04 LTS Kernel (Phoronix)

Posted Nov 23, 2009 22:18 UTC (Mon) by rahulsundaram (subscriber, #21946) [Link]

I hope meanwhile that you have filed a bug report on the problems you are facing. It gets better over time with good feedback.

jerky video with nouveau

Posted Nov 28, 2009 7:08 UTC (Sat) by tkil (guest, #1787) [Link]

opalmirror wrote:
I only wish that video played without jerky dropouts.

I chatted with one of the main developers on IRC a few weeks back, and spent some quality time with oprofile and friends. Apparently, nouveau does not yet implement tiling. That means that the data is getting written linearly; for a sufficiently large screen*, the time cost of setting up, initiating, and cleaning up the DMA for each line is enough that it can't keep up with the frame rate.

* My screen is 1600x1200 DVI-D to an NV44A AGP card, on a 1.9GHz P4, and mplayer starts freaking out if the playback surface is larger than about 1/4th or 1/3rd the total pixels on the screen.