Launchpad has imported 17 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=58897.
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Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2012-12-31T05:29:09+00:00 Yangweix-shui wrote: Created attachment 72323 dmesg from Booting up Environment: --------------------- kernel commit: c0c36b941b6f0be6ac74f340040cbb29d6a0b06c drm/i915: Return the real error code from intel_set_mode() Description: --------------------- After booting up, there's an error in dmesg like below: [drm:i915_write32] *ERROR* Unknown unclaimed register before writing to c5100 Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/0 ------------------------------------------------------------------------ On 2012-12-31T05:30:40+00:00 Yangweix-shui wrote: Created attachment 72324 message from intel_reg_dumper Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/1 ------------------------------------------------------------------------ On 2012-12-31T05:32:20+00:00 Yangweix-shui wrote: Created attachment 72326 lspci message Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/2 ------------------------------------------------------------------------ On 2013-01-07T06:40:56+00:00 Gordon Jin wrote: is this regression? I'm decreasing severity as I don't see real bad impact to users. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/3 ------------------------------------------------------------------------ On 2013-01-07T09:15:39+00:00 Daniel-ffwll wrote: The first one is likely garbage left over from the BIOS, I think we need to tune down the debug message there. The later ones sound like real bugs ... Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/4 ------------------------------------------------------------------------ On 2013-01-07T09:42:31+00:00 Daniel-ffwll wrote: Created attachment 72614 tune down debug message Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/5 ------------------------------------------------------------------------ On 2013-01-08T03:00:01+00:00 Yangweix-shui wrote: (In reply to comment #5) > Created attachment 72614 [details] [review] > tune down debug message This patch worked, this error dmesg doesn't exist while this patch applied on latest -next-queued commit. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/6 ------------------------------------------------------------------------ On 2013-01-10T10:08:19+00:00 Daniel-ffwll wrote: Created attachment 72775 reset unclaimed register writes errors on takeover New patch for you to test, with a different approach. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/7 ------------------------------------------------------------------------ On 2013-01-11T08:15:50+00:00 Yangweix-shui wrote: (In reply to comment #7) > Created attachment 72775 [details] [review] > reset unclaimed register writes errors on takeover > > New patch for you to test, with a different approach. Apply this patch on top commit of branch -next-queued, this error information will appeared in dmesg. commit: 9c7a47e7ca7c694ff4f19b568ad4ce1dba64dbd0 [ 1.786664] [drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/8 ------------------------------------------------------------------------ On 2013-01-11T08:25:22+00:00 Yangweix-shui wrote: Created attachment 72840 dmesg (In reply to comment #8) > (In reply to comment #7) > > Created attachment 72775 [details] [review] [review] > > reset unclaimed register writes errors on takeover > > > > New patch for you to test, with a different approach. > > Apply this patch on top commit of branch -next-queued, > > this error information will appeared in dmesg. > > commit: 9c7a47e7ca7c694ff4f19b568ad4ce1dba64dbd0 > > [ 1.786664] [drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed Modify: --------------- [ 5.032931] [drm:i915_write32] *ERROR* Unknown unclaimed register before writing to c5100 Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/9 ------------------------------------------------------------------------ On 2013-01-11T08:26:41+00:00 Daniel-ffwll wrote: Hm, then there's something strange going on, I need to analyze this further ... Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/10 ------------------------------------------------------------------------ On 2013-01-18T13:30:07+00:00 Chris Wilson wrote: *** Bug 59549 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/11 ------------------------------------------------------------------------ On 2013-01-29T19:16:12+00:00 Paulo Zanoni wrote: Daniel's patch certainly fixes the problem for me... Are you really sure you tested a Kernel with Daniel's patch? Anyway, I've proposed changing from GEN7_ERROR_INT to FPGA_DBG, so there's a new patch on the mailing list that will fix this bug after we convert to FPGA_DBG. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/12 ------------------------------------------------------------------------ On 2013-01-30T05:31:19+00:00 Yangweix-shui wrote: (In reply to comment #12) > Daniel's patch certainly fixes the problem for me... Are you really sure you > tested a Kernel with Daniel's patch? > I applied the patch on top -next-queued commit, then retest it on my HSW machine, the error dmesg also exist. Machine Information: ---------------------------- HSW desktop: BIOS Version: HSWLPTU1.86C.0093.R00.1209242321 Stepping: C0 > Anyway, I've proposed changing from GEN7_ERROR_INT to FPGA_DBG, so there's a > new patch on the mailing list that will fix this bug after we convert to > FPGA_DBG. Please give a link of the patch, I can't find a patch related to this bug on mailing list. Thanks... Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/13 ------------------------------------------------------------------------ On 2013-01-31T18:46:53+00:00 Paulo Zanoni wrote: (In reply to comment #13) > (In reply to comment #12) > > Daniel's patch certainly fixes the problem for me... Are you really sure you > > tested a Kernel with Daniel's patch? > > > I applied the patch on top -next-queued commit, then retest it on my HSW > machine, the error dmesg also exist. Can you please attach dmesg? > > Machine Information: > ---------------------------- > HSW desktop: > BIOS Version: HSWLPTU1.86C.0093.R00.1209242321 > Stepping: C0 > > > Anyway, I've proposed changing from GEN7_ERROR_INT to FPGA_DBG, so there's a > > new patch on the mailing list that will fix this bug after we convert to > > FPGA_DBG. > > Please give a link of the patch, I can't find a patch related to this bug on > mailing list. Thanks... http://lists.freedesktop.org/archives/intel-gfx/2013-January/024116.html http://lists.freedesktop.org/archives/intel-gfx/2013-January/024117.html http://lists.freedesktop.org/archives/intel-gfx/2013-January/024211.html If this also doesn't help you, please attach dmesg. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/14 ------------------------------------------------------------------------ On 2013-02-01T05:23:46+00:00 Yangweix-shui wrote: > http://lists.freedesktop.org/archives/intel-gfx/2013-January/024116.html > http://lists.freedesktop.org/archives/intel-gfx/2013-January/024117.html > http://lists.freedesktop.org/archives/intel-gfx/2013-January/024211.html > > If this also doesn't help you, please attach dmesg. I tested with -next-queued top commit: 209d52110a32c2069b5d870504e73fdb0e30fc51, and applied the patches. The error also exists in dmesg. I attached the dmesg in attachment, any more message you want, I'm glad to try and doing for this. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/15 ------------------------------------------------------------------------ On 2013-02-01T05:30:20+00:00 Yangweix-shui wrote: Created attachment 74031 error in dmesg after booting up Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1138787/comments/16 ** Changed in: linux Status: Unknown => Confirmed ** Changed in: linux Importance: Unknown => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1138787 Title: "Unknown unclaimed register" messages in haswell To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1138787/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
