On Sun, Dec 16, 2012 at 21:44:17 +0100, Evgeni Golov wrote: > Package: xserver-xorg-core > Version: 2:1.12.4-4 > Severity: important > Tags: upstream patch > > Hi, > > after the "recent" upgrade of acpid [1], the Xorg on my ThinkPad X61 Tablet > started to segfault while moving the screen from Laptop to Tablet and back. > A short backtrace (attached) and chat with ron in #debian-x revieled the > adding of two new ACPI messages to acpid [2] as the evil. > > acpid now sends "video/tabletmode TBLT off" and "video/tabletmode TBLT on" > when I move my screen. This is fine, until you read the source of > lnxACPIGetEventFromOs in hw/xfree86/os-support/linux/lnx_acpi.c. The code > just expects the video/* message to have four parameters, but the new ones > acpid send have only three, resulting in a strtoul on NULL and a segfault. > Can't this be fixed in acpid? Are there other consumers for these events that expect a different format?
Cheers, Julien
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