Hi CLUG members, Here is one that would have been nice for the troubleshooting night, but I did not yet have it at that time...
When I got an Asus P/I-P55SP4V board with Cyrix 6x86 some days ago, I thought this would be a nice upgrade as compared to my old 486... So I disassembled everything and reassembled it with the "new" motherboard. My old Miro VLB graphics card does not fit in any more, but since the Asus board has an on-board VGA controller, this should be no problem - I thought. New config: - Asus P/I-P55SP4V motherboard / Cyrix 6x86-P150+ @ 120 MHz (rated f) - On-board SiS 5596 chip with 2 MB shared video RAM - 96 MB in four SIMMs - Adaptec 2940 SCSI controller (PCI) - One SCSI disk - One IDE disk as master on IDE 1 - HP CD-writer as slave on IDE 1 / hdb=ide-scsi - Logitech Waveman audio (EISA) All equipment except the motherboard has been used for a long time before in the old 486 without any problems. What did I do? - Set the shared video RAM in the BIOS to maximum (2 MB) - Looked up the graphics chipset with lspci - Configured X 3.3.6 accordingly using the XF86_SVGA as the doc says for this controller (newer X does not support the chip) Result: X is running, but incredibly slooooowwww! And not only that, but the whole machine goes like with brakes on. For instance, top requires 15 % CPU (in text mode it takes only 4 %, and that should not change much only because X is running). All processes need more CPU time to complete a certain given task than they did before! I am running the same 2.2.19 kernel as before, only recompiled it for the CPU change. I have a vague feeling that this thing might have something to do with interrupts, but I do not know where to look further. I searched the net for known problems with that motherboard and Linux, but there is not much about that board at all. The doc for that chipset and X is almost non-existing. To be able to work, I now put in an Avance Logic VGA card that is supported by the same XF86_SVGA, and it is _much_ faster and does not give the impression everything slows down. Anyone here with pointers or experience? I would be grateful for comments on this. Regards, Helmut. +----------------+ | Helmut Walle | | [EMAIL PROTECTED] | +----------------+
