Bug#703715: Kernel bug ALPS TouchPad and i915 DRM do not play nicely on Wheezy 3.2.0-4-amd64
Hi Kernel Maintainers I have been tracking related bugs 704987 and 703715, I have suggested a fix that has been under test for the last week and seems to fix the reported issue, the following is the patch from the stable tree that reverts Debian patch, features/all/Input-add-Synaptics-USB-device-driver.patch. Testing has been editing, creating and reading various Libre Office files without any symptoms reported, all with various touch pad interactions, suspend, resume. commit e24fb4d67f53530038a9711d0c1f65937490bb8c Author: Ben Hutchings b...@decadent.org.uk Date: Tue Jun 25 04:15:27 2013 +0100 Revert drm/i915: GFX_MODE Flush TLB Invalidate Mode must be '1' for scanli This reverts commit 393143615d9f2f581d87387268dc11b95adc339c, which was commit f05bb0c7b624252a5e768287e340e8e45df96e42 upstream. This has been found to cause GPU hangs when backported to 3.2, though not in mainline. References: http://bugs.launchpad.net/bugs/1140716 Cc: Steve Conklin sconk...@canonical.com Cc: Stefan Bader stefan.ba...@canonical.com Cc: Bradd Figg brad.f...@canonical.com Cc: Luis Henriques luis.henriq...@canonical.com Signed-off-by: Ben Hutchings b...@decadent.org.uk diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/inte index 4fddd21..38a7793 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -408,11 +408,6 @@ static int init_render_ring(struct intel_ring_buffer *ring) if (INTEL_INFO(dev)-gen = 6) I915_WRITE(MI_MODE, GFX_MODE_ENABLE(ASYNC_FLIP_PERF_DISABLE)); - /* Required for the hardware to program scanline values for waiting */ - if (INTEL_INFO(dev)-gen == 6) - I915_WRITE(GFX_MODE, - GFX_MODE_ENABLE(GFX_TLB_INVALIDATE_ALWAYS)); - if (IS_GEN7(dev)) I915_WRITE(GFX_MODE_GEN7, GFX_MODE_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) | -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/51ee5760.4060...@iinet.net.au
Bug#703715: Kernel bug ALPS TouchPad and i915 DRM do not play nicely on Wheezy 3.2.0-4-amd64
On Tue, 2013-07-23 at 20:13 +1000, iiNET wrote: Hi Kernel Maintainers I have been tracking related bugs 704987 and 703715, I have suggested a fix that has been under test for the last week and seems to fix the reported issue, the following is the patch from the stable tree that reverts Debian patch, features/all/Input-add-Synaptics-USB-device-driver.patch. I don't know how you think these are connected... Testing has been editing, creating and reading various Libre Office files without any symptoms reported, all with various touch pad interactions, suspend, resume. commit e24fb4d67f53530038a9711d0c1f65937490bb8c Author: Ben Hutchings b...@decadent.org.uk Date: Tue Jun 25 04:15:27 2013 +0100 Revert drm/i915: GFX_MODE Flush TLB Invalidate Mode must be '1' for scanli This reverts commit 393143615d9f2f581d87387268dc11b95adc339c, which was commit f05bb0c7b624252a5e768287e340e8e45df96e42 upstream. This has been found to cause GPU hangs when backported to 3.2, though not in mainline. [...] We are actually using the DRM code from 3.4, not 3.2. But this patch is applied and should not be. Thanks for finding this. If anyone else would like to test and confirm that this fixes the hangs they are seeing, please use the attached patch, following the instructions at http://kernel-handbook.alioth.debian.org/ch-common-tasks.html#s-common-official. Ben. -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse. reverted: --- b/drivers/gpu/drm/i915/intel_ringbuffer.c +++ a/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -407,11 +407,6 @@ if (INTEL_INFO(dev)-gen = 6) I915_WRITE(MI_MODE, GFX_MODE_ENABLE(ASYNC_FLIP_PERF_DISABLE)); - /* Required for the hardware to program scanline values for waiting */ - if (INTEL_INFO(dev)-gen == 6) - I915_WRITE(GFX_MODE, - GFX_MODE_ENABLE(GFX_TLB_INVALIDATE_ALWAYS)); - if (IS_GEN7(dev)) I915_WRITE(GFX_MODE_GEN7, GFX_MODE_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) | signature.asc Description: This is a digitally signed message part
Bug#703715: Kernel bug ALPS TouchPad and i915 DRM do not play nicely on Wheezy 3.2.0-4-amd64
On 07/24/13 11:12, Ben Hutchings wrote: On Tue, 2013-07-23 at 20:13 +1000, iiNET wrote: Hi Kernel Maintainers I have been tracking related bugs 704987 and 703715, I have suggested a fix that has been under test for the last week and seems to fix the reported issue, the following is the patch from the stable tree that reverts Debian patch, features/all/Input-add-Synaptics-USB-device-driver.patch. I don't know how you think these are connected... Aargh there not, should of said: bugfix/x86/drm-i915-GFX_MODE-Flush-TLB-Invalidate-Mode-must-be-. patch Thanks for following up Darren Testing has been editing, creating and reading various Libre Office files without any symptoms reported, all with various touch pad interactions, suspend, resume. commit e24fb4d67f53530038a9711d0c1f65937490bb8c Author: Ben Hutchingsb...@decadent.org.uk Date: Tue Jun 25 04:15:27 2013 +0100 Revert drm/i915: GFX_MODE Flush TLB Invalidate Mode must be '1' for scanli This reverts commit 393143615d9f2f581d87387268dc11b95adc339c, which was commit f05bb0c7b624252a5e768287e340e8e45df96e42 upstream. This has been found to cause GPU hangs when backported to 3.2, though not in mainline. [...] We are actually using the DRM code from 3.4, not 3.2. But this patch is applied and should not be. Thanks for finding this. If anyone else would like to test and confirm that this fixes the hangs they are seeing, please use the attached patch, following the instructions at http://kernel-handbook.alioth.debian.org/ch-common-tasks.html#s-common-official. Ben. -- Darren Williams IT Operations Manager Australian Technology Park National ICT Australia Limited Level 5 13 Garden Street, Eveleigh NSW 2015 Australia Tel: (02) 8306 0517 Mob: 0409 835 793 Fax: (02) 8374 5558 Email: Darren.Williams AT nicta.com.au Web: http://www.nicta.com.au The imagination driving Australia's ICT future. The information in this e-mail may be confidential and subject to legal professional privilege and/or copyright. National ICT Australia Limited accepts no liability for any damage caused by this email or its attachments. -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/51ef3433.2050...@nicta.com.au
Bug#703715: Kernel bug ALPS TouchPad and i915 DRM do not play nicely on Wheezy 3.2.0-4-amd64
Hi Guys I have been tracking this bug since installing Wheezy a few weeks ago. After a weekend of testing I discovered that this bug is related to the ALPS DualPoint TouchPad device and the DRM i915 modules. More precisely the scroll bar on the touch pad. testing I have: 1. Built and run the earliest stable branch where the synaptic_usb code was introduced, v3.4.0. I could not reproduce the bug. 2. stable tree 3.3.0 with patches features/all/Input-add-Synaptics-USB-device-driver.patch features/all/USB-add-USB_VENDOR_AND_INTERFACE_INFO-macro.patch I could not reproduce the bug Turned out I was chasing the wrong device though on the right path. 3. Tested 3.2.46 and 3.2.47 from the stable tree with with patches features/all/Input-ALPS-move-protocol-information-to-Documentatio.patch features/all/Input-ALPS-add-protocol-version-field-in-alps_model_.patch features/all/Input-ALPS-remove-assumptions-about-packet-size.patch features/all/Input-ALPS-add-support-for-protocol-versions-3-and-4.patch features/all/Input-ALPS-add-semi-MT-support-for-v3-protocol.patch features/all/Input-add-Synaptics-USB-device-driver.patch features/all/USB-add-USB_VENDOR_AND_INTERFACE_INFO-macro.patch Bug reproducible 4. Tested 3.2.48 from stable tree with patches features/all/Input-add-Synaptics-USB-device-driver.patch features/all/USB-add-USB_VENDOR_AND_INTERFACE_INFO-macro.patch I could not reproduce the bug 5. Possible fix candidate: e24fb4d67f53530038a9711d0c1f65937490bb8c I'm no kernel expert and testing this bug is difficult, in some cases it turns up as soon as you start Libre Office and start scrolling with the touch pad, in others it may take 20 - 30 mins. I'll run with patched 3.2.48 for a week and let you know the results Details of my machine: System Information Manufacturer: Dell Inc. Product Name: Latitude E6220 Product Name: 0R97MN Version: A00 CPU: Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz Mouse: AlpsPS/2 ALPS DualPoint TouchPad VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) Hope this helps Darren -- Darren Williams National ICT Australia Limited Web: http://www.nicta.com.au The imagination driving Australia's ICT future. The information in this e-mail may be confidential and subject to legal professional privilege and/or copyright. National ICT Australia Limited accepts no liability for any damage caused by this email or its attachments. -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/51e3ef1f.8040...@nicta.com.au
