Comment 53 for bug 494699

I have a 64-bit lucid install fully patches as of 2010-04-01 or so. I patched and saw 300 MB of patches including fglrx and kernel patches. I had exactly what #49 Brendan P had happen. Perfectly working system with a radeon 5770. Apt-get update, apt-get upgrade, something indicated I should reboot so I did. When it booted it complained about Missing PCS defaults file /etc/ati/amdpcsdb.default.

Here's a bigger piece of the log file:
(II) Module dri2: vendor="X.Org Foundation"
        compiled for 1.7.6, module version = 1.1.0
        ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DRI2
(II) LoadModule: "fglrx"
(II) Loading /usr/lib/xorg/extra-modules/modules/drivers/fglrx_drv.so
(II) Module fglrx: vendor="FireGL - ATI Technologies Inc."
        compiled for 1.7.1, module version = 8.72.10
        Module class: X.Org Video Driver
(II) Loading sub module "fglrxdrm"
(II) LoadModule: "fglrxdrm"
(II) Loading /usr/lib/xorg/extra-modules/modules/linux/libfglrxdrm.so
(II) Module fglrxdrm: vendor="FireGL - ATI Technologies Inc."
        compiled for 1.7.1, module version = 8.72.10
(II) ATI Proprietary Linux Driver Version Identifier:8.72.10
(II) ATI Proprietary Linux Driver Release Identifier: 8.72.1
(II) ATI Proprietary Linux Driver Build Date: Mar 10 2010 23:41:33
(II) Primary Device is: PCI 01@00:00:0
(WW) Falling back to old probe method for fglrx
(EE) Unable to initialize PCS database
(EE) Missing PCS defaults file /etc/ati/amdpcsdb.default
(EE) No devices detected.

I tinkered quite a bit, I reverted the fglrx driver to the previous version, booted the previous kernel, tried the driver from ati.com, all without luck. At some point I had run apt-get update and another batch of patches came down, then I just said "aticonfig --initial" and it worked.

So now as far as I can tell I'm 100%, running 2 20" monitors, radeon 5770, and the current kernel and fglrx driver as supplied by ubuntu. Maybe there's some bug where upgrading fglrx while the fglrx module is in use somehow corrupts /etc/ati/amdpcsdb.default?