Okay, I've just (~21:13 UTC) installed kernel "4.4-rc2+cod1". Packages installed:
linux-image-4.4.0-040400rc2-generic_4.4.0-040400rc2.201511231054_amd64.deb linux-headers-4.4.0-040400rc2_4.4.0-040400rc2.201511231054_all.deb linux-headers-4.4.0-040400rc2-generic_4.4.0-040400rc2.201511231054_amd64.deb "uname -a": Linux yurix 4.4.0-040400rc2-generic #201511231054 SMP Mon Nov 23 10:56:43 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux "dmesg |grep -i i915": [ 1.240521] [drm] Initialized i915 1.6.0 20151010 for 0000:00:02.0 on minor 0 [ 2.461518] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device [ 13.662232] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) "dmesg |grep -i amd": [ 0.000000] AMD AuthenticAMD [ 0.000000] RAMDISK: [mem 0x3448c000-0x3623dfff] [ 1.211790] [drm] amdgpu kernel modesetting enabled. [ 1.214823] AMD IOMMUv2 driver by Joerg Roedel <jroe...@suse.de> [ 1.214825] AMD IOMMUv2 functionality not available on this system Last lines of "cat /var/log/kern.log |grep -i lied": Nov 29 11:30:15 yurix kernel: [ 23.887712] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)! Nov 29 11:30:15 yurix kernel: [ 23.887880] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)! Nov 29 11:30:15 yurix kernel: [ 23.888368] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)! Nov 29 11:30:15 yurix kernel: [ 23.888536] [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)! (so far no IRQ-related issues after I booted the system with an upstream kernel) "lsmod |grep -i i915": i915 --- 1204224 --- 5 i2c_algo_bit --- 16384 --- 2 --- i915,amdgpu drm_kms_helper --- 135168 --- 2 --- i915,amdgpu drm --- 360448 --- 8 --- ttm,i915,drm_kms_helper,amdgpu video --- 40960 --- 3 --- i915,dell_wmi,dell_laptop "aticonfig --list-adapters": * 0. 04:00.0 AMD Radeon R7 M260 * - Default adapter "amdcccle" (AMD Catalyst Control Center): opens a window with an error message in brazilian portuguese. In english, the message translates to "There was a problem while attempting to start Catalyst Control Center Linux Edition. It may have been caused by the following: No AMD graphics driver installed, or AMD graphics driver not working properly. Install the proper AMD driver to your AMD hardware, or configure it with 'aticonfig'." Well, this pretty much confirms to me that "fglrx_updates" is definitely a proprietary AMD GPU driver and thus doesn't work with these kernels, as explained in https://wiki.ubuntu.com/Kernel/MainlineBuilds I will keep this kernel running for the next hours and report back if any message like "[drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)!" comes up in "dmesg". -- 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/1520040 Title: [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)! Status in linux package in Ubuntu: Incomplete Bug description: Device: notebook Dell Inspiron 5548 Operating system: 64-bit XUbuntu Linux 14.04 LTS Processor: Intel Core i7-5500U Kernel: 3.19.0-33-generic #38~14.04.1-Ubuntu SMP x86_64 Video: dual chip. These are the two display controllers: - Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260] display controller 33000000Hz (requires kernel module / device driver "fglrx"); and - Intel Corporation Broadwell-U Integrated Graphics VGA compatible controller 33000000Hz (requires kernel module / device driver "i915"). Problem: my notebook's operating system is switching to runlevel 0 (power off) randomly, subtly and thus unexpectedly. And if I 'cat /var/log/kern.log |grep -i i915' I get a lot of "[drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt lied (SDE)!" messages. I'm under the impression that either the kernel or the kernel module "i915_bpo" is buggy. My notebook's problem can't be related to overheating, because it's a brand-new notebook (less than 1 month old) and I've already monitored its temperature parameters: nothing abnormal is happening. Also, I'm using a cooling laptop base/pad. Other kernels I've tested, with which the same issue happens: - 3.19.0-18-generic (kernel module: i915_bpo) - 3.19.0-23-generic (kernel module: i915_bpo) - 3.19.0-28-generic (kernel module: i915_bpo) - 4.2.0-18-generic (kernel module: i915) Temporary workaround: I downgraded to kernel "3.13.0-36-generic", which isn't buggy with its "i915_bdw.ko" (version 3.0) kernel object (module). Full path for this module: /lib/modules/3.13.0-36-generic/kernel/ubuntu/i915/i915_bdw.ko Notes: - "bdw" stands for "Broadwell" - "bpo", I believe, stands for "backport" ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.19.0-33-generic 3.19.0-33.38~14.04.1 ProcVersionSignature: Ubuntu 3.19.0-33.38~14.04.1-generic 3.19.8-ckt7 Uname: Linux 3.19.0-33-generic x86_64 NonfreeKernelModules: wl fglrx ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 CurrentDesktop: XFCE Date: Wed Nov 25 23:44:39 2015 InstallationDate: Installed on 2015-11-03 (22 days ago) InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) SourcePackage: linux-lts-vivid UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: yuriyrs 2832 F.... pulseaudio /dev/snd/controlC1: yuriyrs 2832 F.... pulseaudio CurrentDesktop: XFCE DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=a08f36f9-0611-4894-9da9-8b1dcc960a86 InstallationDate: Installed on 2015-11-03 (24 days ago) InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) MachineType: Dell Inc. Inspiron 5548 NonfreeKernelModules: fglrx wl Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-33-generic.efi.signed root=UUID=4f05c2b3-c971-4bf8-bcb6-a76d60b68e45 ro quiet splash video.use_native_backlight=1 intremap=no_x2apic_optout vt.handoff=7 ProcVersionSignature: Ubuntu 3.19.0-33.38~14.04.1-generic 3.19.8-ckt7 RelatedPackageVersions: linux-restricted-modules-3.19.0-33-generic N/A linux-backports-modules-3.19.0-33-generic N/A linux-firmware 1.127.18 Tags: trusty Uname: Linux 3.19.0-33-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare scanner sudo tape video _MarkForUpload: True dmi.bios.date: 10/12/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 0YDTG3 dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A06 dmi.modalias: dmi:bvnDellInc.:bvrA06:bd10/12/2015:svnDellInc.:pnInspiron5548:pvrA06:rvnDellInc.:rn0YDTG3:rvrA02:cvnDellInc.:ct8:cvrA06: dmi.product.name: Inspiron 5548 dmi.product.version: A06 dmi.sys.vendor: Dell Inc. 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