The restricted module is definitely broken. Normally I can get two separate screens next to each other with full DRI performance. If I enable Xinerama then it uses the mesa drivers with slower performance.
Section "ServerFlags" Option "Xinerama" "true" EndSection Here is the boot log with Xinerama enabled: fglrx: module license 'Proprietary. (C) 2002 - ATI Technologies, Starnberg, GERMANY' taints kernel. Nov 21 16:50:54 burkey kernel: [ 37.404000] [fglrx] Maximum main memory to use for locked dma buffers: 928 MBytes. Nov 21 16:50:54 burkey kernel: [ 37.404000] [fglrx] module loaded - fglrx 8.37.6 [May 25 2007] on minor 0 Nov 21 16:50:54 burkey kernel: [ 37.436000] ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 16 Nov 21 16:50:58 burkey kernel: [ 40.580000] mtrr: no more MTRRs available Nov 21 16:50:58 burkey last message repeated 3 times Nov 21 17:04:45 burkey kernel: [ 867.972000] [fglrx] PCIe has already been initialized. Reinitializing ... Nov 21 17:04:45 burkey kernel: [ 868.124000] mtrr: no more MTRRs available Nov 21 17:04:45 burkey last message repeated 3 times Nov 21 17:09:02 burkey kernel: [ 1125.000000] [fglrx] PCIe has already been initialized. Reinitializing ... Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] total GART = 130023424 Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] free GART = 114032640 Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] max single GART = 114032640 Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] total LFB = 134086656 Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] free LFB = 104214528 Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] max single LFB = 104214528 Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] total Inv = 0 Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] free Inv = 0 Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] max single Inv = 0 Nov 21 17:09:02 burkey kernel: [ 1125.032000] [fglrx] total TIM = 0 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] total GART = 130023424 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] free GART = 114032640 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] max single GART = 114032640 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] total LFB = 134086656 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] free LFB = 74334208 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] max single LFB = 74334208 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] total Inv = 0 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] free Inv = 0 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] max single Inv = 0 Nov 21 17:09:02 burkey kernel: [ 1125.140000] [fglrx] total TIM = 0 Maybe the video card does not have enough memory for such a large screen? -- fglrx: Xinerama does not work https://bugs.launchpad.net/bugs/40544 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs