On Fri, 20 Mar 2009 11:43:19 -0700 (PDT) bugme-daemon@xxxxxxxxxxxxxxxxxxx wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=12904 > > Summary: hard lockup on Sony Vaio SR when connecting some > external monitors > Product: Platform Specific/Hardware > Version: 2.5 > KernelVersion: 2.6.29-rc6 > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: x86-64 > AssignedTo: platform_x86_64@xxxxxxxxxxxxxxxxxxxx > ReportedBy: melchior+kernel@xxxxxxx > > > Latest working kernel version: none > Earliest failing kernel version: 2.6.26 > Distribution: Debian (unstable) > Hardware Environment: Sony Vaio SR290 with Mobile 4 Series Chipset Integrated > Graphics (PCI ids: 8086:2a42 and 8086:2a43) > Software Environment: 64-bit Debian unstable > Problem Description: > > This laptop locks up when certain external display devices are attached after > boot. Only overhead projectors seem to cause the lockup. I can attach > external LCD monitors at any time and use (e.g.) xrandr without problem. > Likewise, if the projector is attached before turning the laptop on, the > display will be mirrored and it will work fine. In this case, unplugging the > projector will cause the lockup. > > Steps to reproduce: > > This problem occurs in X or at the console, with or without the i915 module > loaded. It occurs at the console with the framebuffer enabled or with > vga=normal. In the latter case, the cursor continues to blink, but the system > doesn't respond to keystrokes. Alt+SysRq doesn't work in any of these cases. > Gee, I'm struggling to work out which kernel subsystem might be involved here. If anything I suppose it is ACPI. Help? -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
