On Tue, Dec 31, 2013 at 7:41 PM, Sid Boyce <sbo...@blueyonder.co.uk> wrote: > On 31/12/13 10:36, Ilia Mirkin wrote: >> >> On Tue, Dec 31, 2013 at 5:14 AM, Sid Boyce <sbo...@blueyonder.co.uk> >> wrote: >>> >>> System x86_64 with openSUSE 13.1. >>> X.Org version: 1.14.99.905 >>> >>> openSUSE 12.2 kernels boot successfully into a graphical screen, login to >>> KDE4, etc. all normal. >>> >>> 3.13-rc kernels boot fully with X running but no graphical screen and it >>> freezes in VC with not all the startup messages displayed but I could ssh >>> in >>> from another box to check dmesg and logs. >>> >>> Xorg.0.log which I thought I had saved did not log an error. >>> >>> dmesg said "nouveau Playlist update failed". >>> >>> Changed the GeForce GT 560 Ti for a GeForce 8600 GT and 3.13.0-rc6 is up >>> and >>> running. >>> >>> If necessary I can go back to the GT 560 Ti to gather dmesg and Xorg log >>> information. >> >> Having a dmesg would be nice. One thing I can think of off-hand is >> that 3.13-rc has MSI turned on by default. You can turn it off by >> adding "nouveau.config=NvMSI=0" to your kernel cmdline. If that >> doesn't help, a bisect restricted to drivers/gpu/drm/nouveau should >> show the offending commit fairly quickly. >> >> -ilia >> > Adding "nouveau.config=NvMSI=0" to the command line fixed the problem. > So it looks like commit 049ffa8ab33a63b3bff672d1a0ee6a35ad253fe8 introduced > it.
Any chance you might mmiotrace the blob (version 325 or later) to see which registers it fiddles with? Or alternatively, if you have a NVCE card (you never did end up providing the logs which would have made that apparent), could you try replacing nvc3_mc_oclass with nvc0_mc_oclass for the 0xce case in drivers/gpu/drm/nouveau/core/engine/device/nvc0.c? (and boot without the MSI disabling.) The switch has already been made for NVC8 in 0bae1d61c75 -- perhaps there are more "odd" ones. -ilia -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
