Can't confirm on a X1950 Pro (PCI Express, 256MB), Core 2 E6750 running in x86_64 mode.
Interrupt counts look normal: $ vmstat 1 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 16 906716 1680108 2579516 0 0 14 36 14 306 1 1 97 0 0 0 16 906488 1680108 2579512 0 0 0 0 19 325 1 0 99 0 0 0 16 906504 1680108 2579512 0 0 0 0 0 257 0 1 99 0 0 0 16 906504 1680108 2579512 0 0 0 0 15 295 0 0 100 0 0 0 16 906504 1680108 2579512 0 0 0 0 0 282 0 0 100 0 0 0 16 906504 1680120 2579500 0 0 0 216 31 312 0 0 100 0 0 0 16 906504 1680120 2579512 0 0 0 0 0 253 0 1 99 0 0 0 16 906504 1680120 2579512 0 0 0 0 15 295 0 0 100 0 0 0 16 906504 1680120 2579512 0 0 0 0 0 259 1 0 98 0 1 0 16 906504 1680120 2579512 0 0 0 0 16 320 2 0 98 0 1 0 16 906504 1680120 2579512 0 0 0 0 0 268 2 0 98 0 0 0 16 906504 1680120 2579512 0 0 0 0 16 307 2 0 99 0 0 0 16 906504 1680120 2579512 0 0 0 0 0 263 0 0 100 0 0 0 16 906504 1680120 2579512 0 0 0 0 17 316 0 0 100 0 0 0 16 906504 1680120 2579512 0 0 0 0 6 238 1 1 99 0 0 0 16 906504 1680120 2579512 0 0 0 0 20 313 0 0 100 0 0 0 16 906504 1680120 2579512 0 0 0 0 1 274 1 1 99 0 0 0 16 906504 1680128 2579504 0 0 0 12 23 290 0 0 100 0 0 0 16 906504 1680128 2579512 0 0 0 0 6 264 0 0 100 0 0 0 16 906504 1680128 2579512 0 0 0 0 23 328 1 0 99 0 0 0 16 906504 1680128 2579512 0 0 0 0 0 254 1 0 99 0 -- [fglrx] Using fglrx causes excessive hardware interrupts and an extremely slow system https://bugs.launchpad.net/bugs/206337 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
