On Wed, Apr 9, 2008 at 2:40 AM, Krsnendu dasa <[EMAIL PROTECTED]> 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.) Are you running 32 bit or 64 bit version of the OS? Flash is a real challenge in Gutsy 64 bit, but this is a Firefox issue. I don't think it has been resolved yet.
> > 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 > Where are you running lsmod - server or thin client? (Can you run lsmod on the thin clients?) If the thin client has an intel video chipset, use XSERVER=intel. I had the luxury of booting my thin clients as a thick client to find out what video drivers they were using. > 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 Don't do this from the chroot in Gutsy, if that is any help. > Or do I have to start from scratch (delete /i386 directory then run > ltsp-build-client)? Shouldn't need to delete the i386 directory either. > > 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? Good question, anyone else know? Charles -- edubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/edubuntu-users
