Messages in this thread | | | Date | Sun, 16 Jan 2005 05:33:05 -0500 | From | Jon Smirl <> | Subject | Re: 2.6.10 dies when X tries to initialize PCI radeon 9200 SE |
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I use PCI Rage128 cards which are working fine.
I suspect it is this code from radeon_drv.c. There is probably something wrong with card's BIOS or whatever and it is saying that it is an AGP card when it is really a PCI one. We used to specify this manually in xconfig but now DRM code does it automatically. Fix is probably to add a special case on the PCI_ID of the card that is failing.
/* There are signatures in BIOS and PCI-SSID for a PCI card, but they are not very reliable. Following detection method works for all cards tested so far. Note, checking AGP_ENABLE bit after drmAgpEnable call can also give the correct result. However, calling drmAgpEnable on a PCI card can cause some strange lockup when the server restarts next time. */ pci_read_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG, &save); pci_write_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG, save | RADEON_AGP_ENABLE); pci_read_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG, &temp); if (temp & RADEON_AGP_ENABLE) dev_priv->flags |= CHIP_IS_AGP; DRM_DEBUG("%s card detected\n", ((dev_priv->flags & CHIP_IS_AGP) ? "AGP" : "PCI")); pci_write_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG, save);
-- Jon Smirl jonsmirl@gmail.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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