08.11.04
Posted in English, Linux at 12:41 am by Rodrigo
Damn IRQ’s..
The USB devices (including Firewire) still share the same IRQ (21). I tried to balance them using the acpi_irq_balance kernel option.. it didn’t work. The only remaining option to use is append="pirq=xx[,xx[..]]", and hope for the best. If only the “xx” were easy to calculate..
The “other O.S.” upgrade has gone.. emm.. well. I just booted there and it worked, though I had to reinstall all the PCI device drivers, because they were lost in the upgrade. Just two problems remain:
- Everytime I boot I receive two warnings about bad drivers.. Those are the two IDE channel device drivers.. something about an “hdc” (not the same as Linux, I believe). I tried deleting them, restoring them, reinstalling the VIA 4-in-1.. nothing works. I will have to try safe mode one of these days.
- There are a lot of devices sharing the same IRQ’s. Apparently, Windows XP doesn’t recognize the IO-APIC in my new motherboard, so I have to reinstall it, just to make it work better. Well, that’s hardly something new for a lot of people, but for me it’s terrible: I have reinstalled it just once in 4 years..
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08.07.04
Posted in English, Linux at 12:37 am by Rodrigo
- My old MSI K7T266 motherboard for a new Soyo SY-KT600.
- My old Athlon Thunderbird 1400 for a new Athlon XP Barton 2800+.
- A new CPU cooler (Zalman CNPS7000A-AlCu) and round 80-pin IDE cables.
This was a good upgrade.. I could not run some games (True Crime for example) because the Thunderbirds don’t have SSE capability.. the same with some NVidia demos. And finally, it was the Doom 3 hardware upgrade :).
Upgrading Linux was a breeze. My old motherboard also had a VIA chipset, so the support was compiled in the kernel. I had some problems with lm-sensors and the ethernet card, but they were solved quickly.
IO-APIC was a different matter. Nothing worked when I enabled it in the BIOS. It took me some time to realize that the MPS version was wrong: When I had it set at 1.1, PCI devices didn’t work. But if I changed it to 1.4, everything was ok. But I still have every USB 1.1, USB 2.0 and Firewire in the same IRQ:
CPU0
0: 122473 IO-APIC-edge timer
1: 513 IO-APIC-edge i8042
8: 1 IO-APIC-edge rtc
9: 0 IO-APIC-level acpi
14: 20799 IO-APIC-edge ide0
15: 19 IO-APIC-edge ide1
16: 236 IO-APIC-level nvidia
17: 124 IO-APIC-level eth0
19: 0 IO-APIC-level EMU10K1
21: 154 IO-APIC-level uhci_hcd, uhci_hcd, uhci_hcd, uhci_hcd, ehci_hcd, ohci1394
NMI: 0
LOC: 122416
ERR: 0
MIS: 0
Well.. I’ll see into that problem later. Now, the hard part: trying to upgrade Windows XP without re-installing (yeah, I know it’s hard).. I hope it doesn’t take too much time..
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08.06.04
Posted in English, Linux at 12:34 am by Rodrigo
This is a very nice tool to list your hardware. Something like this (lshw -html, as root).
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Posted in English, Linux at 12:26 am by Rodrigo
This is a little script I wrote to ease the interaction between mozilla and the rss-grab gdesklet.
The script checks if there’s an instance of mozilla running. If there is, it opens the url given as argument in a tab inside the running mozilla instance. If there isn’t, it creates a new instance of the browser.
Run this script (instead of mozilla) when there’s a click in one of the gdesklet url’s, and bingo! No more multiple mozilla instances!
Reference: http://www.mozilla.org/unix/remote.html.
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