Just a heads-up: yesterday I found a bios version A05 for this board that fixed the problem. on de US Dell ftp server ftp://ftp.us.dell.com/bios Today it is gone again, and the buggy A04 is still there. The website never mentioned A05. Roelof Roelof van der Kleij wrote: > As a follow up for SL 5.1: > I have an optiplex 755/2Gb/Ati radeonpci-e / latest bios (A04) > > I get a number of 'PCI: Cannot allocate resource region x' > error messages. The system is slow. X works, but I cannot get the > accelerated proprietary ATI driver to work. > Network does work out of the box. I have not tested sound. > > I have seen some similar problems with centos. All in all this rig > does not seem to work with SL. The wait is for a new kernel or maybe a > new bios. > http://www.nvnews.net/vbulletin/showthread.php?t=100658 > > IMHO the underlaying problem is that the RHEL philosophy of > backporting newer kernel features to an older kernel version cannot > keep up with the current frantic pace of hardware development. Maybe > fedora is the way to go for desktops? > > Roelof > > > Jon Peatfield wrote: >> On Tue, 11 Dec 2007, Mark Whidby wrote: >> >>> Hi, >>> Has anyone had any experience of SL (or Centos / RHEL) on the new >>> Dell Optiplex 755 machines? Specifically does X work? >> >> We got a 755 for testing a couple of days before I went on vacation >> (the last two weeks). In the short time I had to play with it I found >> that plain 5.0 PXE installation couldn't drive the new network >> hardware, but the kernel in 5.1alpha could. I assume that the one in >> 5.1beta/beta2/release will also drive the network stuff but I've not >> had time to check yet (still catching up on my e-mail). >> >> We *NEVER* have any luck with onboard Intel graphics so we stick to >> add-in cards. I like the ATI X300/X600 cards which Dell used to ship >> but sadly those are now hard to find. The newer X1050/X1300 (etc) >> cards will work with the VESA driver but then you get no fast 3D >> support... Of course using the ATI proprietry driver migth solve that >> if I could be bothered. >> >> [ Likewise every Nvidia card I seem to be able to buy seems now too >> new to get decent support from the Xorg driver. I dislike te >> proprietory drivers because updates to e.g. kernels are then less >> trivial... ] >> >> -- >> Jon Peatfield, Computer Officer, DAMTP, University of Cambridge >> Mail: [log in to unmask] Web: http://www.damtp.cam.ac.uk/