On Fri, Oct 19, 2012 at 12:02 AM, Jonas Jelten <jel...@in.tum.de> wrote: > On 10/19/2012 07:38 AM, Peter Hutterer wrote: >> On Sat, Aug 11, 2012 at 05:56:33PM +0200, Jan Steffens wrote: >>> On Sat, Aug 11, 2012 at 5:24 PM, Wataru Sakurai <wat...@aoisakura.jp> wrote: >>>> Hi Jonas, >>>> >>>> I had the same problem. my tablet's product id is 0094 before I know, >>>> and Tablet not working. >>>> >>>> So, I built linux kernel 3.6-rc1 and boot it, then the problem is resolved. >>>> Please don't do "reboot", do power off ( "shutdown" ) and next do power on. >>>> Now I can use stylus, eraser, and touch. tablet's product id is 00E6. >>> >>> Is there a particular commit in 3.6 that fixes it? >> >> bringing this up late, but still: >> I suspect this may be a hardware issue. I had this same issue for a while >> and after digging into this today it doesn't seem to be related to a kernel >> version. I even downgraded to an older kernel >> >> $> uname -r >> 3.3.4-5.fc17.x86_64 >> >> rebooting, etc. didn't work. Powering off, waiting a few secs and starting >> it up again worked (with that kernel above). >> >> Cheers, >> Peter >> > At the moment it's working stable, i haven't had the usbid change for a > few weeks. Do you think I should contact Lenovo to have it fixed before > warranty ends?
You won't get anything fixed by Lenovo. The issue you see only happens with kernel 3.5. There was a bug in 3.5.3 [1] that was introduced by not applying all patches I submitted. It stayed in 3.5.4 until I brought the fix to GregKH. The fix got in 3.5.5 [2]. The root cause is somewhere in the kernel tablet is set to a wrong mode. Once it is in that mode, a reboot won't reset it to normal. We have to power it off and wait a few seconds for all bits to reset. That's why I tell people to even unplug the power cable since bits may stay as long as they get power. If you do not run kernel 3.5.3 or 3.5.4, you won't see this issue any more. Ping [1] https://bugzilla.kernel.org/show_bug.cgi?id=46821 [2] http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git;a=commitdiff;h=38412d911d6872ecc626b59606f7bba1fc651aae ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct _______________________________________________ Linuxwacom-devel mailing list Linuxwacom-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxwacom-devel
