On Mon, Feb 4, 2013 at 11:32 AM, Meelis Roos <mroos@xxxxxxxx> wrote: >> >> > Adding some printks reveals it calls >> >> > r100_init() -> radeon_irq_kms_init() -> drm_irq_install() -> >> >> > drm_dev_to_irq() and that fails. So no IRQ, no KMS. >> >> > >> >> > lspci does not show Interrupt like on some other PCI devices. >> >> > /proc/interrupts obviously does not contain the irq since we do not >> >> > register any yet. >> >> > >> >> > There is no BIOS option of "Enable IRQ for VGA" or similar (BIOS is >> >> > latest). Could this be the problem? >> >> > >> >> > What can I do to get KMS working on this computer? >> >> > >> >> > -- >> >> > Meelis Roos (mroos@xxxxxxxx) >> >> >> >> Try booting with radeon.agp_mode=-1 >> > >> > radeon: `-1' invalid for parameter `agp_mode' >> >> radeon.agpmode=-1 >> >> However, I think there are a number of places where we require >> interrupts that would need to be worked around (fences, display >> hotplug, pageflipping) if not interrupt is available. > > I did dome more testing with different cards an got a surprise. The > machine works fine with other AGP cards - one MX440 with nouvea, another > RV100 QY and a R200. They do have interrupt in lspci -vvv output. > > Why does this specific card not have its IRQ routed - card ROM problem? For some reason the system bios on your box doesn't assign it one. The video bios isn't really involved. I'm not sure if there is a way to force assign an irq in Linux or not. Alex _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
