On Tue, 03 Jan 2012 12:02:43 -0500, Adam Jackson <a...@redhat.com> wrote: > On 12/30/11 12:34 AM, Jeff Chua wrote: > > > How can I go about to help debug this? > > The i810 driver probably needs the equivalent fix as: > > http://cgit.freedesktop.org/xorg/driver/xf86-video-cirrus/commit/?id=f422d0c38b0befdb2152215ab05d0d14f3da3ed9
The i810 driver uses vgaHWSetMmioFuncs() rather than SetStdFuncs, and so leaves hwp->io uninitialised. That pointer is then dereferenced by DACDelay() (as it uses pci_io_read8 irrespective of mmio/std funcs) during the vgaHWSaveColormap(). At which point, I'm far beyond my comfort zone... -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: arch...@mail-archive.com