Re: [Ubuntu-x-swat] [Bug 391461] Re: Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel
The GPU is largely irrelevant (other than being an nVidia card), the bug stems from an erratum, at least affecting the Intel T2500. The nVidia driver was relying on certain behaviours in the kernel pertaining to the CPU which changed in 2.6.30. 2009/9/29 Alex Murray murray.a...@gmail.com Just wanted to say Nvidia works fine for me under Karmic with compiz on my MacBook Pro 5,1: lspci -v: 2:00.0 VGA compatible controller: nVidia Corporation G96 [GeForce 9600M GT] (rev a1) Subsystem: Apple Computer Inc. Device 00a9 Flags: bus master, fast devsel, latency 0, IRQ 23 Memory at a400 (32-bit, non-prefetchable) [size=16M] Memory at 8000 (64-bit, prefetchable) [size=256M] Memory at a200 (64-bit, non-prefetchable) [size=32M] I/O ports at 3000 [size=128] [virtual] Expansion ROM at a500 [disabled] [size=512K] Capabilities: access denied Kernel driver in use: nvidia Kernel modules: nvidia, nvidiafb $ grep flags /proc/cpuinfo flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm tpr_shadow vnmi flexpriority flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm tpr_shadow vnmi flexpriority So this clearly doesn't affect all Nvidia users under Karmic. -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a direct subscriber of the bug. -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 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
[Ubuntu-x-swat] [Bug 391461] Re: Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel
I emailed Doug over at Gentoo to confirm where/how it was fixed - nVidia have fixed the issue in the latest 185 driver. We have a PPA with that latest driver (https://launchpad.net/~nvidia-vdpau/+archive/ppa - 185.18.31) but unfortunately that driver is broken as per https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics- drivers-180/+bug/408561, so I can't verify. -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 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
[Ubuntu-x-swat] [Bug 391461] Re: Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel
** Changed in: nvidia-graphics-drivers-180 (Ubuntu) Status: New = Confirmed -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 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
[Ubuntu-x-swat] [Bug 391461] Re: Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel
The bug in Gentoo has been marked as FIXED: http://bugs.gentoo.org/show_bug.cgi?id=274672#c9 Please upgrade to the in tree 185.x.y series for a resolution. Has a fix been made available upstream? I didn't spot a patch in gentoo- commits, but I couldn't find a way to search the list either. Fwiw, the problem still exists (testing Alpha 4 candidate ISO's) apt-cache policy linux-image-generic linux-image-generic: Installed: 2.6.31.5.16 Candidate: 2.6.31.5.16 Version table: *** 2.6.31.5.16 0 500 http://gb.archive.ubuntu.com karmic/main Packages 100 /var/lib/dpkg/statu apt-cache policy nvidia-glx-180 nvidia-glx-180: Installed: 185.18.14-0ubuntu3 Candidate: 185.18.14-0ubuntu3 Version table: *** 185.18.14-0ubuntu3 0 500 http://gb.archive.ubuntu.com karmic/restricted Packages 100 /var/lib/dpkg/status uname -a Linux yonah-nix 2.6.31-5-generic #24-Ubuntu SMP Sat Aug 1 12:48:18 UTC 2009 i686 GNU/Linux -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 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
[Ubuntu-x-swat] [Bug 391461] Re: Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel
They're tracking this bug in Gentoo: http://bugs.gentoo.org/show_bug.cgi?id=274672 Doug Goldstein commented: http://bugs.gentoo.org/show_bug.cgi?id=274672#c8 The patch is a copy and paste of the patch posted by Christian from NVIDIA. He however clearly states in his post that its a hack and not the correct/complete solution. I've discussed this issue with NVIDIA in detail and the net result is that we're really going to recommend users of NVIDIA cards + OpenGL to steer clear of 2.6.30 until a full work around the regression is completed and tested. It will be out with the next driver bump. Question being will that driver bump be done in time for Karmic? ** Bug watch added: Gentoo Bugzilla #274672 http://bugs.gentoo.org/show_bug.cgi?id=274672 -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 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
[Ubuntu-x-swat] [Bug 391461] Re: Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel
I'm not clever enough to know if the change in the kernel constitutes a bug. Just commenting that, according to Doug's discussions, they're planning to fix it in the driver regardless. Afaik, this hasn't been filed in kernel's bugzilla - if you think it needs to, then by all means. -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 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
[Ubuntu-x-swat] [Bug 391461] Re: Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel
After a chat in #ubuntu+1 and finding someone else on the forum with the same problem - and the same card (GeForce Go 7400), changing this to nvidia-graphics-drivers http://ubuntuforums.org/showthread.php?t=1187783 ** Package changed: compiz (Ubuntu) = nvidia-graphics-drivers-180 (Ubuntu) ** Tags added: regression-potential -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 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
[Ubuntu-x-swat] [Bug 391461] Re: Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel
@PRGUY85 I get a slightly different effect than that. What software did you use to capture the video, I'll try the same :) -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 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
[Ubuntu-x-swat] [Bug 391461] Re: Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel
A kernel regression is less likely I think, you'd see problems all over the shop I'd bet. Same problem on 2.6.31 as well as 2.6.30. Anyway, the guys in #ubuntu+1 suggested the driver as culprit, and they're way smarter than I am :D Do you have the same graphics card as us? (try 'sudo lshw -class display')? Also, posting ~/.xsession-errors and /var/log/Xorg.0.log will be useful to the developers :) -- Compiz Slow on Karmic w/ NVIDIA and 2.6.30 Kernel https://bugs.launchpad.net/bugs/391461 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 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
