Launchpad has imported 21 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=70151.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2013-10-04T20:35:45+00:00 Januszmk6 wrote: Created attachment 87138 dmesg Sometimes my desktop is freezing and I get in dmesg something like that: [ 2387.969110] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x249ce000 ctx 1) at 0x249ce1d8 i5 2500k with hd3000, 2 screens, mesa-9.2.0 with classic driver arch, xf86-video-intel-2.99.901. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/0 ------------------------------------------------------------------------ On 2013-10-04T20:37:26+00:00 Januszmk6 wrote: Created attachment 87140 /sys/class/drm/card0/error Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/1 ------------------------------------------------------------------------ On 2013-10-05T14:53:40+00:00 Yjcoshc wrote: Using chrome for a while and then playing hedgewars. [11788.465654] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x270d6000 ctx 1) at 0x270d61c8 [12010.091755] SELinux: initialized (dev proc, type proc), uses genfs_contexts [12196.509788] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [12196.509851] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x9e37000 ctx 1) at 0x9e371c8 [12196.534762] [drm:__gen6_gt_force_wake_get] *ERROR* Timed out waiting for forcewake old ack to clear. [12262.519865] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [12262.519875] [drm:i915_hangcheck_elapsed] *ERROR* stuck on blitter ring [12262.528953] [drm:__gen6_gt_force_wake_get] *ERROR* Timed out waiting for forcewake old ack to clear. [12331.530366] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [12331.530375] [drm:i915_hangcheck_elapsed] *ERROR* stuck on blitter ring [12331.824316] [drm:__gen6_gt_force_wake_get] *ERROR* Timed out waiting for forcewake old ack to clear. Also playing hedgewars for about half an hour can reproduce these errors. i5-2510M with hd3000, mesa 9.2.0, xf86-video-intel 2.99.903. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/2 ------------------------------------------------------------------------ On 2013-10-05T14:54:20+00:00 Yjcoshc wrote: Created attachment 87163 i915_error_state Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/3 ------------------------------------------------------------------------ On 2013-10-05T21:12:07+00:00 Js314592 wrote: I can also see it after upgrade of Mesa from 9.1.6 to 9.2.1 with full screen video playback: mplayer -vo gl [43554.987053] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [43554.987128] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0xdde4000 ctx 1) at 0xdde41c8 [43707.904260] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [43707.904342] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0xdde4000 ctx 1) at 0xdde4220 Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/4 ------------------------------------------------------------------------ On 2013-10-09T15:36:16+00:00 Honza-h wrote: Hello. Same problem here. [ 485.443455] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 485.443467] [drm] capturing error event; look for more information in /sys/kernel/debug/dri/0/i915_error_state [ 485.452727] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0xa637000 ctx 1) at 0xa6371c8 [ 821.726799] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 821.726873] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x4974000 ctx 1) at 0x49741c8 [ 1311.134514] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [ 1311.134613] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0x4a98000 ctx 1) at 0x4a98220 sys: fedora 19 64b Linux jarvis 3.11.2-201.fc19.x86_64 #1 SMP Fri Sep 27 19:20:55 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux WM: KDE with effects enabled 8G ram 300G SATA HDD ntb Lenovo ThinkPad E320 problem occurs in: - scrolling in firefox - playing video in vlc and switch to KDE terminal or another app - sometimes system hangs, cpu 100%, freeze and hard reboot needed - sometimes happens if I work with ff or in terminal only (very frustrating) - happening across many kernel versions 3.0 to newest I think lspci 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4) 00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000 [Condor Peak] 03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01) 03:00.1 SD Host controller: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01) 08:00.0 Ethernet controller: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet (rev c0) Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/11 ------------------------------------------------------------------------ On 2013-10-09T15:38:08+00:00 Honza-h wrote: Created attachment 87349 /sys/kernel/debug/dri/0/i915_error_state Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/12 ------------------------------------------------------------------------ On 2013-10-14T17:55:12+00:00 Tomwij-1 wrote: Downstream Gentoo bug report at https://bugs.gentoo.org/show_bug.cgi?id=480930 Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/13 ------------------------------------------------------------------------ On 2013-10-18T07:50:13+00:00 Chris Wilson wrote: *** Bug 70594 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/15 ------------------------------------------------------------------------ On 2013-10-19T02:24:41+00:00 Shuhao wrote: Does anyone else here experience CPU/GPU performance drops when they experience these hangs? I think these are due to overheating but I can't be sure as the clock freq of the CPU is not being limited. Previously, that happened when I hit 95C, where as these slow down happens when my core hits roughly 86C. Laptop is a Thinkpad T420. Critical temp is 100C. It's been documented that these laptops will hit these temperature after computationally intensive tasks such as games. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/16 ------------------------------------------------------------------------ On 2013-10-19T09:56:15+00:00 Daniel-ffwll wrote: (In reply to comment #9) > Does anyone else here experience CPU/GPU performance drops when they > experience these hangs? It takes up to a few seconds for the kernel to detect a hang (the gpu doesn't really tell us, it simply stops doing stuff). So frame-freezing while that happens is completely expected. And we also need to turbo-up the chip again, which in some pathetic corner-cases also takes a while. 3.13 has some cool tricks from Chris to help with the turboing. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/17 ------------------------------------------------------------------------ On 2013-10-19T22:52:35+00:00 Shuhao wrote: Would a freeze that requires hard reset be also part of this? I just had one shortly after a short hang. Syslog got a bunch of nul at the end before the reboot. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/18 ------------------------------------------------------------------------ On 2013-10-20T04:52:08+00:00 Shuhao wrote: I also have a stack trace that may or may not be related: [20151.429335] [drm:intel_pipe_config_compare] *ERROR* mismatch in adjusted_mode.flags (expected 1, found 0) [20151.429345] ------------[ cut here ]------------ [20151.429411] WARNING: CPU: 2 PID: 1707 at /build/buildd/linux-3.11.0/drivers/gpu/drm/i915/intel_display.c:8292 check_crtc_state+0x58f/0x9c0 [i915]() [20151.429415] pipe state doesn't match! [20151.429418] Modules linked in: usb_storage(F) hid_generic hidp hid ipt_MASQUERADE(F) iptable_nat(F) nf_nat_ipv4(F) xt_CHECKSUM(F) iptable_mangle(F) bridge(F) stp(F) llc(F) pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) ebtable_nat(F) ebtables(F) parport_pc(F) ppdev(F) rfcomm bnep joydev(F) binfmt_misc(F) nfsd(F) auth_rpcgss(F) nfs_acl(F) nfs(F) lockd(F) sunrpc(F) fscache(F) ext2(F) uvcvideo videobuf2_vmalloc videobuf2_memops x86_pkg_temp_thermal videobuf2_core videodev intel_powerclamp coretemp kvm_intel(F) kvm(F) arc4(F) iwldvm mac80211 ip6t_REJECT(F) xt_hl(F) ip6t_rt(F) nf_conntrack_ipv6(F) nf_defrag_ipv6(F) btusb bluetooth ipt_REJECT(F) xt_limit(F) xt_tcpudp(F) xt_addrtype(F) nf_conntrack_ipv4(F) microcode(F) snd_hda_codec_conexant psmouse(F) iwlwifi serio_raw(F) snd_hda_intel snd_hda_codec cfg80211 snd_hwdep(F) wmi snd_pcm(F) snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) nf_defrag_ipv4(F) xt_conntrack(F) snd_rawmidi(F) snd_seq(F) ip6table_filter(F) tpm_tis ip6_tables(F) thinkpad_acpi nf_conntrack_netbios_ns(F) nvram(F) nf_conntrack_broadcast(F) nf_nat_ftp(F) nf_nat(F) nf_conntrack_ftp(F) nf_conntrack(F) iptable_filter(F) ip_tables(F) x_tables(F) snd_seq_device(F) snd_timer(F) mac_hid lpc_ich snd(F) mei_me mei soundcore(F) lp(F) parport(F) dm_crypt(F) crct10dif_pclmul(F) crc32_pclmul(F) ghash_clmulni_intel(F) aesni_intel(F) i915 aes_x86_64(F) lrw(F) gf128mul(F) glue_helper(F) ablk_helper(F) cryptd(F) video(F) i2c_algo_bit sdhci_pci drm_kms_helper sdhci ahci(F) libahci(F) drm e1000e(F) ptp(F) pps_core(F) [20151.429568] CPU: 2 PID: 1707 Comm: Xorg Tainted: GF W O 3.11.0-12-generic #19-Ubuntu [20151.429572] Hardware name: LENOVO 4180J4C/4180J4C, BIOS 83ET76WW (1.46 ) 07/05/2013 [20151.429576] 0000000000000009 ffff8801925bd898 ffffffff816e547a ffff8801925bd8e0 [20151.429583] ffff8801925bd8d0 ffffffff81061dbd ffff88019534f6d0 0000000000000001 [20151.429589] ffff88018fcdc000 ffff88019534f000 ffff88018fcdc478 ffff8801925bd930 [20151.429595] Call Trace: [20151.429610] [<ffffffff816e547a>] dump_stack+0x45/0x56 [20151.429620] [<ffffffff81061dbd>] warn_slowpath_common+0x7d/0xa0 [20151.429627] [<ffffffff81061e2c>] warn_slowpath_fmt+0x4c/0x50 [20151.429667] [<ffffffffa015d9ef>] check_crtc_state+0x58f/0x9c0 [i915] [20151.429707] [<ffffffffa0168bf3>] intel_modeset_check_state+0x2c3/0x770 [i915] [20151.429740] [<ffffffffa0169135>] intel_set_mode+0x25/0x30 [i915] [20151.429772] [<ffffffffa0169982>] intel_crtc_set_config+0x742/0x910 [i915] [20151.429807] [<ffffffffa0071f8d>] drm_mode_set_config_internal+0x5d/0xe0 [drm] [20151.429838] [<ffffffffa00749c7>] drm_mode_setcrtc+0xf7/0x650 [drm] [20151.429872] [<ffffffffa015ef72>] ? intel_crtc_load_lut+0xd2/0x170 [i915] [20151.429898] [<ffffffffa0065212>] drm_ioctl+0x532/0x660 [drm] [20151.429918] [<ffffffff811b8ba5>] do_vfs_ioctl+0x2e5/0x4d0 [20151.429927] [<ffffffff811a91f1>] ? __sb_end_write+0x31/0x60 [20151.429934] [<ffffffff811a6d82>] ? vfs_write+0x172/0x1e0 [20151.429942] [<ffffffff811b8e11>] SyS_ioctl+0x81/0xa0 [20151.429950] [<ffffffff816f521d>] system_call_fastpath+0x1a/0x1f [20151.429955] ---[ end trace ad96f94859530fca ]--- Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/19 ------------------------------------------------------------------------ On 2013-10-25T05:56:48+00:00 Kenxeth wrote: Would someone be able to try the 'snbfixes' branch of: git://people.freedesktop.org/~kwg/mesa It has a number of patches that may help with this problem. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/20 ------------------------------------------------------------------------ On 2013-10-26T14:55:18+00:00 Xinkai Chen wrote: (In reply to comment #13) > Would someone be able to try the 'snbfixes' branch of: > git://people.freedesktop.org/~kwg/mesa > > It has a number of patches that may help with this problem. These patches seem to work. I've been playing DOTA2 for the last 3 hours without problems. It used to hang every 8-10 minutes. I'll post if it hangs again. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/21 ------------------------------------------------------------------------ On 2013-10-26T20:22:27+00:00 Chris Wilson wrote: *** Bug 70896 has been marked as a duplicate of this bug. *** Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/22 ------------------------------------------------------------------------ On 2013-10-27T07:14:17+00:00 Xinkai Chen wrote: (In reply to comment #14) > (In reply to comment #13) > > Would someone be able to try the 'snbfixes' branch of: > > git://people.freedesktop.org/~kwg/mesa > > > > It has a number of patches that may help with this problem. > > These patches seem to work. I've been playing DOTA2 for the last 3 hours > without problems. It used to hang every 8-10 minutes. > > I'll post if it hangs again. I just read the news at http://www.phoronix.com/scan.php?page=news_item&px=MTQ5Njg, which says "Kenneth's patches don't appear to eliminate the driver issues but rather allow DOTA 2 to run for about three hours before hanging." Sorry for the misunderstanding I caused, apparently my English is too bad to deliver. That was not what I meant to say. The hanging didn't happen again! The patch was good! I played DOTA2 for 3 hours before I stopped playing. NO hanging, so I felt it's time to let Kenneth know the patch worked. Since 3 hours' testing wasn't conclusive enough, I added "I'll post if it hangs again". I hope this clarifies. I'll try to contact phoronix to let them know too. P.S I played more DOTA2 today. Good news: still no hanging. Now I have been testing the patch for about 10 hours so I can conclude with 99% confidence that the patch fixes the problem. P.S2 https://bugs.freedesktop.org/show_bug.cgi?id=69379 seems to be a duplicate. One of you mesa knowledgeables can check on that. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/23 ------------------------------------------------------------------------ On 2013-10-27T22:05:48+00:00 Kenxeth wrote: No, I understood you perfectly. Don't worry about it. Thanks again for testing! Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/24 ------------------------------------------------------------------------ On 2013-10-28T09:00:30+00:00 Xinkai Chen wrote: Created attachment 88211 intel_gpu_abrt.tar Hi, Update on the testing on patch.. Hanging occurs again. It happens when I was watching video using flash. My KDE setup uses OpenGL 2.0 Raster for desktop effects, if that's relevant. I'll attach intel_gpu_abrt.tar Maybe that's a different bug? Or maybe I just did something wrong. This is my first time compiling an important Linux component, and it's a possibility I didn't do things 100% right. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/25 ------------------------------------------------------------------------ On 2013-10-28T17:36:21+00:00 Kenxeth wrote: That's a different hang - it hangs on MI_SEMAPHORE_MBOX. Based on Daniel's recent mesa-dev post, I believe it's bug #54226. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/26 ------------------------------------------------------------------------ On 2013-10-28T18:34:51+00:00 Kenxeth wrote: I've pushed the following fixes to Mesa master: commit 5563dfabc8c1b7cc1a67e4d64311ea29aef43087 Author: Kenneth Graunke <kenn...@whitecape.org> i965: Also emit HiZ and Stencil packets when disabling depth on Gen6. commit 29e5d5db5149f721e6c15a9aee6f8135a98ba5c8 Author: Kenneth Graunke <kenn...@whitecape.org> i965: Also emit HIER_DEPTH and STENCIL packets when disabling depth. commit 65b1f642ac2dff58498622bf6e0b7be8d9d3e20d Author: Kenneth Graunke <kenn...@whitecape.org> i965: Move post-sync non-zero flush for 3DSTATE_MULTISAMPLE. commit 10a918e52c37715744f7980b2bc9da69575514da Author: Kenneth Graunke <kenn...@whitecape.org> i965: Also guard 3DSTATE_DRAWING_RECTANGLE with a flush in blorp. commit 3aef1fefb4dc2a66101725f2fdc3f2bb0eb926c2 Author: Kenneth Graunke <kenn...@whitecape.org> i965: Emit post-sync non-zero flush before 3DSTATE_DRAWING_RECTANGLE. commit 436e815a250a8fde22d79093f4b9eed56472693b Author: Kenneth Graunke <kenn...@whitecape.org> i965: Emit post-sync non-zero flush before 3DSTATE_GS_SVB_INDEX. commit 32a3f5f6d768e5828be1d1f46b1b3f819f55cba8 Author: Daniel Vetter <daniel.vet...@ffwll.ch> i965: CS writes/reads should use I915_GEM_INSTRUCTION These should be in Mesa 10.0. I've also marked them as candidates for a 9.2 stable release, but we may want to let them sit on master for a little while to make sure they don't cause other hang problems. Marking Resolved/Fixed. Thanks for your patience, all. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1236653/comments/27 ** Changed in: linux Status: Unknown => In Progress ** Changed in: linux Importance: Unknown => Medium ** Bug watch added: Gentoo Bugzilla #480930 https://bugs.gentoo.org/show_bug.cgi?id=480930 ** Bug watch added: freedesktop.org Bugzilla #69379 https://bugs.freedesktop.org/show_bug.cgi?id=69379 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1236653 Title: Graphics performance reduced after playing games for a little bit Status in The Linux Kernel: In Progress Status in “linux” package in Ubuntu: Incomplete Bug description: I recently upgraded to Saucy. I noticed that everytime I play something like Counter Strike Source, my graphics performance drops down to something like 15fps while normally it is locked at a max FPS of 40fps.. This slowdown happens and also makes my computer generally pretty slow. Thermo maximum has not been tripped (I know, and I actually underclock while playing these games). I'm not sure why this is happening. It only happens on 13.10. I have bumblebee installed. I used both cards to play the game and the same thing happens ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-11-generic 3.11.0-11.17 ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3 Uname: Linux 3.11.0-11-generic x86_64 ApportVersion: 2.12.5-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: shuhao 2611 F.... pulseaudio shuhao 4063 F.... plugin-containe /dev/snd/pcmC0D0p: shuhao 4063 F...m plugin-containe /dev/snd/timer: shuhao 4063 f.... plugin-containe Date: Mon Oct 7 20:39:17 2013 HibernationDevice: RESUME=UUID=0c4e9477-6a74-48cb-a0e4-37bc3251580e InstallationDate: Installed on 2013-07-08 (91 days ago) InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1) MachineType: LENOVO 4180J4C MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-11-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash i915.modeset=1 i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Failed to create secure directory (/run/user/1000/pulse): Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.11.0-11-generic N/A linux-backports-modules-3.11.0-11-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-09-25 (12 days ago) dmi.bios.date: 05/17/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 83ET57WW (1.27 ) dmi.board.asset.tag: Not Available dmi.board.name: 4180J4C dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr83ET57WW(1.27):bd05/17/2011:svnLENOVO:pn4180J4C:pvrThinkPadT420:rvnLENOVO:rn4180J4C:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4180J4C dmi.product.version: ThinkPad T420 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1236653/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp