https://bugzilla.novell.com/show_bug.cgi?id=780716 https://bugzilla.novell.com/show_bug.cgi?id=780716#c Stefan Dirsch changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P3 - Medium Status|NEW |ASSIGNED AssignedTo|bnc-team-xorg-bugs@forge.pr |xorg-maintainer-bugs@forge. |ovo.novell.com |provo.novell.com Summary|GPU acceleration does not |radeon[HD 6450] GPU |work with Radeon HD 6450 on |acceleration does not work |64 bit system, resulting in |on 64 bit systems, |very poor performance |resulting in very poor | |performance -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=780716 https://bugzilla.novell.com/show_bug.cgi?id=780716#c3 --- Comment #3 from Dieter Leinweber 2012-09-20 06:24:22 UTC --- After searching a bit I found that this seems to be a rather old bug, because the first trace I've found (in a quick search) is from November 2010. Luckily the "old" workaround of specifying a limit of 3GB RAM as a boot parameter still works, even with the catalyst driver. I now have a working video subsystem, but also some GB of unused RAM in my machine :( Nonetheless it's still a bug and I'm wondering how this old bug could survive for such a long time... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=780716 https://bugzilla.novell.com/show_bug.cgi?id=780716#c5 --- Comment #5 from Dieter Leinweber 2013-07-09 17:04:33 UTC --- I'm sorry, but I'm still using 12.2, because I haven't had time to do a fresh installation (an inplace upgrade from 12.2 to 12.3 failed on another box). At least on 12.2 the bug still exists. I've tried to remove the 3 GB limit several times when there was a new kernel or Xorg version, but without success. It's very annoying to know that there is another 3 GB of RAM available in the machine that could be very helpful when running virtual machines, but can't be used, at least with my video card and the catalyst driver driver. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=780716 https://bugzilla.novell.com/show_bug.cgi?id=780716#c6 --- Comment #6 from Dieter Leinweber 2013-12-31 11:16:14 UTC --- Just an update: In the meantime I've installed OpenSuse 13.1 and tested with two graphic cards, one ATI based card (Radeon HD 6450) and one NVidia based card (GF 8400 GS). The results are: ATI: - The free driver that comes with 13.1 has an awful bad performance. I don't need fancy 3D effects, but I want to be able to watch some videos and even that is not possible. However it seems to me now, that this is not a "real bug", but just a "feature" of the free driver. The positive thing is that I can use all available RAM in the machine. - The closed source driver from ATI (I was using the build service) works and gives good performance, but ONLY when I specify the kernel boot parameter "mem=4gb". Without that the machine freezes when entering the garphic mode. NVIDIA: - The nouveau driver that is used by default shows the same behaviour as the ATI closed source driver: Works with "mem=4GB", freezes machine without. This behaviour occurs also when using the Live DVD. - The closed source NVIDIA driver has the same behaviour as the nouveau driver or the ATI driver. As a conclusion: - The title of the bug is misleading, because the poor performance when using the ATI card with the free driver seems to be a feature. - There is however a problem when trying to use other drivers that support 3D acceleration AND more than 4GB of RAM. As this happens with different graphic cards and different drivers I would have assumed that the behaviour is not directly linked to the drivers, but to the underlying system (maybe only in conjunction with my hardware). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=780716 https://bugzilla.novell.com/show_bug.cgi?id=780716#c8 --- Comment #8 from Dieter Leinweber 2014-01-10 09:55:17 UTC --- Ah! That did the job. I'm now able to use all available RAM without crashing the machine :) I didn't make a BIOS update before, because I'm quite sure that I was able to use all available RAM with a previous version of OpenSuse (My machine is about six years old). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=780716 https://bugzilla.novell.com/show_bug.cgi?id=780716#c10 --- Comment #10 from Dieter Leinweber 2014-01-10 11:20:49 UTC --- It was 64 bit. Yes, the bug can be closed! -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.