Joshua, please post your Xorg.0.log from both with my PPA and without. (You should always post your Xorg.0.log with X bugs.)
On Sun, Oct 25, 2009 at 02:43:18AM -0000, Joshua Harding wrote: > I have encountered this bug as well. > > # lspci > 04:00.0 VGA compatible controller: nVidia Corporation G94 [GeForce 9600 GT] > (rev a1) > 05:00.0 VGA compatible controller: nVidia Corporation G94 [GeForce 9600 GT] > (rev a1) > > Worked around by adding the following to xorg.conf > > Section "Device" > Identifier "Configured Video Device" > Busid "PCI:5:0:0" > Driver "nvidia" > EndSection > > Tried both of Bryce Harrington's PPA patches but without the stanza > added to xorg.conf they had no effect. Currently using the 'high' bus > ID. > > -- > X server aborts if two primary devices found > https://bugs.launchpad.net/bugs/459512 > You received this bug notification because you are a direct subscriber > of the bug. > > Status in ???xorg-server??? package in Ubuntu: In Progress > Status in xorg-server in Ubuntu Karmic: In Progress > > Bug description: > [Problem] > > If multiple video devices are present, X will look to see which is marked > primary in the BIOS. If neither are so marked, or both are marked primary, X > doesn't know what to do and aborts with an error such as this in Xorg.0.log: > > (!!) More than one possible primary device found > (--) PCI: (0:1:0:0) 1002:9400:1002:2552 ATI Technologies Inc R600 [Radeon HD > 2900 Series] rev 0, Mem @ 0xc0000000/268435456, 0xfcce0000/65536, I/O @ > 0x0000a000/256, BIOS @ 0x????????/131072 > (--) PCI: (0:2:0:0) 1002:9400:1002:2552 ATI Technologies Inc R600 [Radeon HD > 2900 Series] rev 0, Mem @ 0xd0000000/268435456, 0xfcde0000/65536, I/O @ > 0x0000b000/256, BIOS @ 0x????????/131072 > Primary device is not PCI > ... > > (II) VESA: driver for VESA chipsets: vesa > (II) FBDEV: driver for framebuffer: fbdev > (II) Primary Device is: > (WW) Falling back to old probe method for vesa > (WW) Falling back to old probe method for fbdev > ... > (EE) open /dev/fb0: No such file or directory > (EE) No devices detected. > > Fatal server error: > no screens found > > > [Discussion] > For some additional background on this class of issues, bug 267241 is worth > reviewing. During Jaunty development we found that ALL dual-card setups were > broken, including ones with primary/secondary states properly set. > > As a temporary fix, I made a patch that simply prevented it from aborting in > this case, by just selecting the card with the highest BusID. The problem > with the patch is that it could cause X to boot with the secondary card even > if the primary was properly marked. But at least it prevented X from failing > to start up. > > However, a patch from fedora turned up in time for inclusion in Jaunty, that > gave a mostly-better solution, by adding code to query bios and detect the > primary card and use it. We felt this to be a more elegant solution so this > was the patch we shipped in Jaunty. Debian also picked up this patch. > > This patch has one flaw however - it still exits out in the specific > condition that both cards are PCI (as opposed to one PCI / one VGA), and > neither card are marked primary. While this sounds unusual, it does appear > in the wild; see attached Xorg.0.log and lspci for example. > > [Proposal] > The solution I used originally to just force X to pick the one with the > highest bus id would work on top of the fedora patch. In fact, using that > plus the fedora patch together gives us a best of both worlds solution since > together they cover each other's flaws. > > There is still one (potential) issue that it could select the wrong device as > primary, if neither device is specified as primary, and if the expected > primary has the lower busid. But in this case the bug will be much less > severe; instead of not booting at all, it will boot up but just have the > monitors reversed from what the user expects. -- X server aborts if two primary devices found https://bugs.launchpad.net/bugs/459512 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
