As of 6.14.3 the ddx will stop loading if the ddx is in UMS mode and the drm is in KMS mode to prevent display problems. UMS is no longer supported in the DDX on Linux. Support for UMS was removed in xf86 -video-ati git last month. UMS only supported chips up through evergreen and the open source 3D drivers dropped UMS support a while ago.
The open source radeon driver and fglrx are completely different driver stacks and require some system adjustments to switch between then (different kernel modules, different ddx, different 3D drivers, different libgl and libglx, etc.). It's probably easiest to have a script to switch the environments between the two drivers or something like that. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/534662 Title: [RV635] No hardware acceleration on ATI Radeon 3650 HD using 'radeon' driver Status in xserver-xorg-driver-ati: Unknown Status in xserver-xorg-video-ati package in Ubuntu: Invalid Bug description: Binary package hint: xserver-xorg-video-radeon On Lucid Lynx, after few updates I completely lost graphics hardware acceleration. As fglrx won't work with new xorg, I use radeon driver (my card is ATI Radeon 3650 HD). I used to have perfect 3d graphic, compiz and games used to work smoothly, but from some time I can't use any of them, when I lunch a game it consumes 100% cpu and lags a lot, and when I start compiz, it says compiz (core) - Fatal: Software rendering detected. compiz (core) - Error: Failed to manage screen: 0 compiz (core) - Fatal: No manageable screens found on display :0.0 so my guess is that the radeon driver is not providing me with 3d hardware acceleration. ================================= I don't know if it is a significant tip, but I found out that use-count of module 'radeon' is 0, as lsmod shows. Module Size Used by radeon 738407 0 ttm 60847 1 radeon drm_kms_helper 30742 1 radeon drm 198930 3 radeon,ttm,drm_kms_helper i2c_algo_bit 6024 1 radeon ... ================================ I have no idea on what can be wrong. Maybe the problem is somewhere in my configuration (but I doubt it), maybe it's a bug in radeon driver, or maybe it's a bug somewhere else. I hope debug info I provide will be useful. (EE) RADEON(0): [dri] RADEONDRIGetVersion failed because of a version mismatch. [dri] This chipset requires a kernel module version of 1.17.0, [dri] but the kernel reports a version of 2.0.0.[dri] If using legacy modesetting, upgrade your kernel. [dri] If using kernel modesetting, make sure your module is [dri] loaded prior to starting X, and that this driver was built [dri] with support for KMS. [dri] Disabling DRI. ProblemType: Bug Architecture: amd64 Date: Mon Mar 8 21:47:20 2010 DistroRelease: Ubuntu 10.04 MachineType: Dell Inc. Studio 1737 NonfreeKernelModules: wl Package: xorg 1:7.5+1ubuntu12 ProcCmdLine: root=UUID=ba308b28-d0c2-4d62-84f1-a8b0968ef198 ro vesa=356 quiet splash rootflags=data=writeback ProcEnviron: LANG=pl_PL.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.32-16.24-generic SourcePackage: xorg Symptom: display Uname: Linux 2.6.32-16-generic x86_64 dmi.bios.date: 02/11/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 0P786H dmi.board.vendor: Dell Inc. dmi.board.version: A05 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A05 dmi.modalias: dmi:bvnDellInc.:bvrA05:bd02/11/2009:svnDellInc.:pnStudio1737:pvrA05:rvnDellInc.:rn0P786H:rvrA05:cvnDellInc.:ct8:cvrA05: dmi.product.name: Studio 1737 dmi.product.version: A05 dmi.sys.vendor: Dell Inc. system: distro: Ubuntu codename: lucidarchitecture: x86_64kernel: 2.6.32-16-generic [lspci] 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Mobility Radeon HD 3650 [1002:9591] Subsystem: Dell Device [1028:02a0] To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/534662/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
