I too noticed that video playback in general was not good (jerky and skipping frames in Flash and with MPlayer) with LDM_DirectX=True on Hardy. The setting is supposed to help things by removing the encryption, but something is not working right. Maybe one of the developers can comment on this? I wonder if it is an amd64 OS with i386 clients issue? There seems to be problems with this setup, as I suspect (but can not confirm) the developers are running 100% i386 servers and clients. Or it could be there is a bug with the LDM_DirectX configuration. But now that I see you have the same problem, I think this is likely a bug.
Krsnendu Dasa wrote: > > I have installed Hardy from Beta with all updates applied. I think I have > updated the ltsp tree once some time ago also. > > I have a problem with display performance. Under K12ltsp6 (ltsp4.2) I had > tux maths, flash videos etc running well (and that was on an old system > (AMD > 2500XP with 2 GB RAM). I upgrade to Feisty on a Quad Core Intel machine > with > 4 GB RAM. Again Flash and other graphics was fine. Now I have installed > Hardy, screen redraws are slow even on ordinary web pages and Flash videos > are especially jerky. (I have turned off hardware acceleration for flash.) > > I have LDM_DIRECTX=True. > > I have tested it with echo $DISPLAY and directx seems to be working. > > I suspect that the wrong driver is being used for the graphics card. I am > not sure which one. > > If I do lspci on the client it says: > > 01:00.0 VGA compatible controller : ATI Technologies Inc 3D Rage Pro 1x/2X > (rev 5c) > > I tried the following settings for xserver one by one: > XSERVER=vesa > XSERVER=ati > XSERVER=radeon > > I also tried X_COLOR_DEPTH=16 > > Each time all I got was a black screen with a white dash flashing in the > top > left corner. > > Using lsmod the only thing which seemed relevant was: > intel_agp 25492 1 > agpgart 34760 1 intel_agp > > When the xserver does start, I see this error when I press ALT-CTL-F1: > > OIL: ERROR liboiltest.c 361: oil_test_check_impl(): illegal instruction in > mmxCombineAddU > > Can anyone give me advice how to troubleshoot my poor graphics > performance? > > Should I try updating the ltsp image? > I think my current version is 2008212-ubuntu3. Perhaps version ubuntu4 > will > fix my problem. Can I just do: > sudo chroot /opt/ltsp/i386/ > sudo apt-get upgrade > sudo ltsp-client-build > Or do I have to start from scratch (delete /i386 directory then run > ltsp-build-client)? > > Is there another graphics driver I need to load etc.? > Which log files can I look at? How can I export them to the server so I > can > look at them more easily and email them? > > All help appreciated. > > Thanks. > Krsnendu dasa > > -- > edubuntu-users mailing list > [email protected] > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/edubuntu-users > > -- View this message in context: http://www.nabble.com/Hardy-Display-problems-tp16580555p16834746.html Sent from the edubuntu-users mailing list archive at Nabble.com. -- edubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
