> > Hello! > > I will explain what I did, I have little ability, so i made some research > to get knowledge on how I could perform the configuration of this parameter. > > I found a location with the instructions I followed: > > # sudo cat /sys/module/i915/parameters/enable_psr > > This command returned -1; > # sudo nano /etc/modprobe.d/i915.conf > > In this file I put: > options i915 enable_psr = 0; >
> I saved the file; > > performed: > # sudo update-initramfs -u > > rebooted the computer; > > performed: > # sudo cat /sys/module/i915/parameters/enable_psr > > This command returned 0; > > Then I connected the HDMI cable from my LG monitor and started testing. > > I noticed a specific behavior. I had already set up the gnome-shell dock > to be displayed on all displays ... So I used the mouse pointer to fire the > quick-launch shortcuts of applications I have recorded in the gnome-shell > dock, but I made those shots from LG monitor. > > Every time I ran an application, there was a delay and a slight freezing > of the mouse pointer while the application was loading up to a fraction of > a second after the application was fully loaded. I continued to load the > various applications, always using Dock shortcuts, and the same problem > happened with several of these applications. This is a remarkable detail > because I do not remember similar behavior in linux before... In addition, > we notice a certain slowness and some truncation in the movement of the > mouse pointer (only when it is on the LG display). > > So I realized that in this system reboot, my WiFi network was not > activated (this is another uncomfortable instability that has been > happening, that is, these faults in the load of the wifi or the wired > network when we have to reboot the system). When I realized that the > network was not working I completely turned off the notebook and turned it > on again. Note that the LG monitor was connected all the time ... Then the > network started up again and I was able to do the load tests again ... > Again firing the applications through the gnome shell dock shortcuts using > the LG monitor. This time, however, at the very first shot of the > gnome-calculator, the complete interface and system freeze has already > happened, not even the caps-lock button LED works ... Neither Ctrl Alt > BkSpace ... Neither Ctrl Alt Delete ... or Ctrl Alt F "n" ... nothing. I > had to turn off the notebook on the power button. > > Again I turned off the HDMI connection and re-used only the built-in > monitor of the notebook. > > Very well ... To the point above I was ready to respond to the previous > email with the alleged result of the proposed test. Then, reading the > propose again, I realized that the proposed test was about a kernel > parameter called "enable_rc6" and not "enable_psr" as it appears in the > Arch Linux forum. Therefore, I tried to repeat the previous test using > "enable_rc6". However, the "sudo cat > /sys/module/i915/parameters/enable_rc6" command did not acknowledge the > existence of this parameter. Nor after I change the > "/etc/modprobe.d/i915.conf", run the "sudo update-initramfs -u" and restart > the notebook. Even so I went ahead with the test, reconnected the HDMI, > turned it off and turned the notebook on again and started firing the apps > like before. It was not long before a new freeze happened, more or less as > before, during application loading. I could only point out that the freeze > time after the mouse strokes is not greater than the application load time, > it is actually little lower. These small freezes are happening and > repeating themselves every time an application is triggered until a time > when a complete system freeze occurs... and noticed also the same "lazy" > behavior in the mouse pointer movement on LG display. > > After that, in another search, there was the guideline to change kermel > load parameters, not like I did, but directly editing "/etc/default/grub" > by changing the line "GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" and adding > "i915.enable_psr = 0" inside the "quiet splash" quotes. Well ... First I > deleted "/etc/modprobe.d/i915.conf", so I did all the tests again using > "i915.enable_rc6 = 0" in "/etc/default/grub". However, after making this > change, and before making the tests, I ran a "sudo update-grub" commands > and then "sudo update-initramfs -u", I rebooted the notebook with the > second display connected... Again, the system was frozen in the same way as > before. > > Then I restarted the computer, edited "/etc/default/grub" again and > changed the parameter to "i915.enable_psr = 0", I ran "update-grub" and > "update-initramfs -u". I turned off the notebook, turned it on again, > tested the "sudo cat/sys/module/i915/parameters/enable_psr" by looking at > its value changed to "0" ... and restarted application load tests, as > before using the gnome-shell dock on the secondary display ... I did these > load tests for 5 to 10 minutes and realized only the keeping of annoying > behavior of the slight freezing of the mouse cursor during the loading of > each application and lazy behavior again (notice that this does not happen > when I am only using the built-in display) but, at least so far, I have not > yet obtained the complete freezing of the system... > > ... That was before lunch... > > All the previous tests were implemented during the last 60 minutes before > lunch ... So I left my workstation with the notebook turned on and went to > lunch. > > After lunchtime I was back to work and was putting the finishing touches > on this story ... and then the same freeze again. I was using gEdit to > finalize the translation of the text from my language into English ... So I > moved the mouse, the mouse pointer went from the LG display to the built-in > display and back to the LG where I edited the document, then the complete > freezing of the system happened again. > > So if I have not done something wrong, I believe that the problem of > system freezing can not be solved in this way. > -- 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/1813423 Title: Frequent system freezing with i915 error "*ERROR* Atomic update failure on pipe A" Status in linux package in Ubuntu: Confirmed Status in xorg-server package in Ubuntu: Confirmed Bug description: My system keeps freezing on a brand new install of Kubuntu 18.10, always with the kern.log error "[drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=4120234 end=4120235) time 486 us, min 763, max 767, scanline start 760, end 783" I think it's probably a duplicate of these bugs which were closed unresolved: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1660619 (closed as it was on an older version of Ubuntu) https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1671975 (closed because it was a duplicate of the first bug) It happens far more frequently if I have desktop effects turned on, and far less frequently when using a live USB key (at always happens eventually though. Usually once every few hours.) Please advise how I can help triage / test. My system is a new install now, so I'm perfectly willing to modify / reinstall to help testing (I've reinstalled 5 times to test things, but never managed to find a solution) ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: xorg 1:7.7+19ubuntu8 ProcVersionSignature: Ubuntu 4.18.0-13.14-generic 4.18.17 Uname: Linux 4.18.0-13-generic x86_64 ApportVersion: 2.20.10-0ubuntu13.1 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: KDE Date: Sat Jan 26 14:19:52 2019 DistUpgraded: Fresh install DistroCodename: cosmic DistroVariant: ubuntu ExtraDebuggingInterest: No GraphicsCard: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display [8086:0f31] (rev 0e) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Atom Processor Z36xxx/Z37xxx Series Graphics & Display [103c:227a] InstallationDate: Installed on 2019-01-18 (8 days ago) InstallationMedia: Kubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2) MachineType: Hewlett-Packard HP Pavilion 14 Notebook PC ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-13-generic root=UUID=2c4bf3d1-1ff2-4345-95c0-c68d0e073df9 ro nogpumanager modprobe.blacklist=nouveau,nvidiafb,nvidia-modeset,nvidia-uvm,nvidia intel_iommu=igfx_off i915.semaphores=1 i915.enable_fbc=0 i915.modeset=1 i915.enable_rc=7 i915.enable_dc=2 i915.enable_ppgtt=3 i915.enable_guc_loading=1 i915.lvds_channel_mode=2 i915.lvds_use_ssc=1 quiet splash vt.handoff=1 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/18/2015 dmi.bios.vendor: Insyde dmi.bios.version: F.42 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 227A dmi.board.vendor: Hewlett-Packard dmi.board.version: 76.35 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.42:bd03/18/2015:svnHewlett-Packard:pnHPPavilion14NotebookPC:pvr096C110800405F10000620180:rvnHewlett-Packard:rn227A:rvr76.35:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.family: 103C_5335KV G=N L=CON B=HP S=PAV X=Null dmi.product.name: HP Pavilion 14 Notebook PC dmi.product.sku: J9L01UA#ABL dmi.product.version: 096C110800405F10000620180 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.95-1 version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.2.2-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.1-3ubuntu2.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813423/+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
