Hello Oliver, > > The logs look like as if everything were working. How exactly > does the system crash? Hard lockup? > First the display is going black, then after 3-5 seconds the systems shuts down (power off) or is resetting (Bios screen appears). I don't find anything in the logs after the next boot. This might be because of the hard and fast crash (no sync to the disk). This has always happend in the past when 3G-Modem is activated with the switch at the laptop (this is a switch like a WLAN kill switch) and loaded option modul. My first opinion was, that this has to do with the error logs from the option module but we now together found out that this logs comes from autosuspend mode and has nothing to do with the crashes. I know this sounds all like an hardware problem, but the preinstalled Windows runs fine all the time. And that will be the position if I send this laptop back to Acer to repair something :(. Some other questions: Does it help to press some SysRQ keys between black screen an shut down? I have tried to boot with acpi=off but then i get an kernel panic when booting. What about this messages in dmesg, are this only warnings or maybe the cause of some problems? [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: at drivers/pci/dmar.c:647 check_zero_address+0x96/0x1a5() [ 0.000000] Hardware name: Aspire 1810TZ [ 0.000000] Your BIOS is broken; DMAR reported at address zero! [ 0.000000] BIOS vendor: INSYDE; Ver: v1.3303; Product Version: v1.3303 [ 0.000000] Modules linked in: [ 0.000000] Pid: 0, comm: swapper Not tainted 2.6.33-rc3-41-desktop #2 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81050788>] warn_slowpath_common+0x78/0xb0 [ 0.000000] [<ffffffff814933be>] ? _etext+0x0/0x2 [ 0.000000] [<ffffffff8105081c>] warn_slowpath_fmt+0x3c/0x40 [ 0.000000] [<ffffffff81b444c7>] ? early_ioremap+0x13/0x15 [ 0.000000] [<ffffffff81b56e5a>] check_zero_address+0x96/0x1a5 [ 0.000000] [<ffffffff8127d12b>] ? acpi_get_table_with_size+0x55/0xaf [ 0.000000] [<ffffffff814933be>] ? _etext+0x0/0x2 [ 0.000000] [<ffffffff81b56f7b>] detect_intel_iommu+0x12/0x95 [ 0.000000] [<ffffffff81b33a59>] pci_iommu_alloc+0x67/0x76 [ 0.000000] [<ffffffff81b43dc0>] mem_init+0x19/0xec [ 0.000000] [<ffffffff81b2eb4b>] start_kernel+0x1ca/0x3b6 [ 0.000000] [<ffffffff81b2e319>] x86_64_start_reservations+0x120/0x124 [ 0.000000] [<ffffffff81b2e417>] x86_64_start_kernel+0xfa/0x109 [ 0.000000] ---[ end trace 4eaa2a86a8e2da22 ]--- Regards Patrick -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
