(In reply to comment #6) > Userspace is not a problem here, many distributions have GL implementation > switch tools already. >
Userspace is the problem. > > The problem is that xf86-video-ati is built with KMS and radeon.ko loads with > modeset=1 but still, X fails to load due to the initialization (bug?) issue > reported by the OP. Restarting X fixes the problem. I do think there is > something to fix here and it would be nice to at least fix this chicken/egg > issue. You need to have the kernel module loaded before starting X. The same is true of other KMS drivers (intel, nouveau, etc.). If the drm is not loaded, the ddx assumes UMS and tries to load the drm. If it loads in KMS mode, you don't want two drivers handling the same hw, so the ddx bails to prevent that. If you try and load the drm from X and assume that the kernel is in KMS mode, you break old systems with old kernels that don't support KMS. The other problem with having the ddx load the drm for KMS mode is that with KMS, the drm handles all of the chip init. With UMS when you load the drm in UMS mode, the kernel module doesn't do anything at load time; it just waits until userspace inits the hw and actually decides to use the drm. With KMS, we have no way of knowing when the KMS drm has finished loading or initializing the hw so we may end up trying to use the KMS drm before it's properly loaded. It's not a configuration we want to support. -- 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
