[Bug 1522922] Re: Screen flickering in Intel i915 driver
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 As comment #117 suggests, disabling tlp fixes it for my Broadwell Celeron laptop. However, another way to fix it (at least for some of us) is to set ALPM to a higher power state, which means you can keep tlp enabled. In the tlp config file /etc/default/tlp, set the line SATA_LINKPWR_ON_BAT=min_power to SATA_LINKPWR_ON_BAT=medium_power or to SATA_LINKPWR_ON_BAT=max_performance. If not running tlp, add the same line to /etc/pm/config.d/sata_alpm (and probably also for SATA_LINKPWR_ON_AC). The problem with this solution is that on chips where the southbridge and cpu are packaged together (Broadwell, Haswell, etc.), the package won't go into lower power states, so battery suffers. For instance, I can't get it into anything lower than C2, as powertop indicates. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 It happens for me with kernel 4.8.0-34-generic #36~16.04.1-Ubuntu . with xorg.conf from comment #129. The flashs start to appear once there is the message pointed in #130, i.e.: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun . The message appears only once for the first flash and then the flash appear more often but no more message in /var/log/kern.log. Adding drm.debug=14 does not enable more messages in that case. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 I've a MacBook Pro, 4k Monitor from Samsung and the error / flickering occurs with the latest nightly build: [ 4921.690599] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun Linux kevin-MacBookPro 4.10.0-994-generic #201612282215 SMP Thu Dec 29 03:17:19 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 @John Smith: I have two older laptops with Intel chips, one Westmere and one Ivy Bridge architecture. Only one solution fixed the screen flickers on both laptop, installing the drm-intel-nightly kernel: http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/current/ I use this suggested config for Xorg, but I don't think it has any effect: Section "Device" Identifier "Intel Graphics" Driver "intel" Option "AccelMethod" "sna" Option "TearFree""true" Option "DRI""3" EndSection I tried many kernels versions, tinkering with the Xorg configm, but the nightly kernel was the real cure to use the intel driver in Xorg on my laptops. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 I'm having this same issue on a Dell 7537 running Ubuntu 16.10 (kernel 4.8). The flickering that occurs is a rapid change in the brightness of the screen, in a random, persistently manner (it never stops). Not so often the screen goes all white and quickly returns to normal. It's interesting to mention that on Ubuntu 16.04 (kernel 4.4) the bug appears to be fixed, as the flickering does not occur. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 Update: Now this bug is fixed for me in http://kernel.ubuntu.com /~kernel-ppa/mainline/v4.4.9-xenial/ as well. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
*** This bug is a duplicate of bug 1554613 *** https://bugs.launchpad.net/bugs/1554613 ** This bug has been marked a duplicate of bug 1554613 screen flickering on XPS13 9350/9550 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
I am affected by this bug on dell xps 13 9350 both on FHD and QHD. Running kernel 4.6rc5 from http://kernel.ubuntu.com/~kernel- ppa/mainline/v4.6-rc5-wily/ helps as a work-around. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
** Attachment added: "i915_opregion" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1522922/+attachment/4649569/+files/opregion2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
I found something interesting that may or may not be valuable. From what I can gather so far, we're dealing with two flicker issues. One affects only Ubuntu MATE, the other affects regular Ubuntu as well. For me, I've been able to work around the problem in Ubuntu MATE by disabling tlp.service and rebooting. After I do this, I no longer deal with any flickering at all whatsoever. This work around won't work for everyone, but if you are hitting the bug in Ubuntu MATE (since Ubuntu MATE features tlp.service by default) this may work for you. Even though disabling tlp.service fixes it for me, this is still a kernel bug, because I can also fix this issue by side-loading an unsupported kernel without disabling tlp.service and that fixes it too. For whatever reason, tlp.service is triggering something in the kernel causing a flicker. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
** Bug watch added: freedesktop.org Bugzilla #94479 https://bugs.freedesktop.org/show_bug.cgi?id=94479 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
** Bug watch added: freedesktop.org Bugzilla #94593 https://bugs.freedesktop.org/show_bug.cgi?id=94593 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
That sounds much more like the issue I'm seeing, which I raised against Ubuntu Mate (1558736) as it seems to only affect that DE with the 16.04 Beta builds. Both Alphas were fine and other DEs with the same nightlies were fine. However, that bug was marked as a duplicate of this one, though I'm not yet convinced. I found that the screen wouldn't blank out when I was charging the battery - it only happens when running on battery power. It's a Dell XPS13 9350, with Intel Skylake integrated graphics - more info in https://bugs.launchpad.net/bugs/1558736. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
This bugs affects my m3800 on Ubuntu 15.10 with Unity desktop. Flickering seen with linux kernel 4.2, 4.3 and 4.4. No flickering only when I run kernel 3.19 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
In http://www.lorenzobettini.it/2015/12/flickering-for-intel-graphic- card-in-linux-4-2/ I described the steps to revert the two commits that seem to have introduced the flickering. This requires downloading the kernel sources, revert the two commits, compile the kernel and install the locally built packages. This bug is particularly annoying, and each time a new upgrade on the kernel is released the above procedure has to be performed again. Not to mention that this bug makes the system unusable (if the above procedure is not performed). I think that the "importance" should be brought back to "Critical" (assuming that "Critical" is higher than "High"). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
** Package changed: libdrm (Ubuntu) => xserver-xorg-video-intel (Ubuntu) ** Changed in: xserver-xorg-video-intel (Ubuntu) Importance: Critical => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
Finally got the dump just as the monitor started to flicker. ** Attachment added: "crash-kdump.tar.gz" https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1522922/+attachment/4553076/+files/crash-kdump.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
** Changed in: libdrm (Ubuntu) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1522922] Re: Screen flickering in Intel i915 driver
Launchpad has imported 49 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=91393. 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 2015-07-19T11:17:16+00:00 Furniss-tom wrote: Created attachment 117243 dmesg Consistently flickering screen when i915 driver is used with the N133HSE-EA3 screen of the Lafite 13.3 laptop. Video here: https://www.youtube.com/watch?v=0ISthkP7L3o When i915 driver is disabled (i915.modeset=0), Linux falls back to the vesa driver and the laptop screen renders correctly. When an external monitor is connected via HDMI, the i915 driver renders the external monitor correctly whilst the flickering remains on the laptop screen. Earlier versions of this laptop model did not experience this problem, but the most recent version does (reported by one other user). I have no authoritative record of the hardware changes between model versions. System information: - Architecture and kernel: 4.2.0-994-generic #201507142205 SMP Wed Jul 15 02:06:50 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux - Distribution: Ubuntu 15.04 - Laptop model: Lafite 13.3 from www.pcspecialist.co.uk - Laptop Screen: Chimei N133HSE-EA3 - Display Conenctor: eDP $ sudo get-edid | edid-decode Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: 0d ae 61 13 00 00 00 00 07 18 version: 01 04 basic params:a5 1d 11 78 02 chroma info: ce 85 a3 57 4e 9d 26 12 50 54 established: 00 00 00 standard:01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 descriptor 1:36 36 80 a0 70 38 20 40 2e 1e 24 00 25 a5 10 00 00 18 descriptor 2:24 24 80 a0 70 38 20 40 2e 1e 24 00 25 a5 10 00 00 18 descriptor 3:00 00 00 fe 00 43 4d 4e 0a 20 20 20 20 20 20 20 20 20 descriptor 4:00 00 00 fe 00 4e 31 33 33 48 53 45 2d 45 41 33 0a 20 extensions: 00 checksum:a1 Manufacturer: CMN Model 1361 Serial Number 0 Made week 7 of 2014 EDID version: 1.4 Digital display 8 bits per primary color channel DisplayPort interface Maximum image size: 29 cm x 17 cm Gamma: 2.20 Supported color formats: RGB 4:4:4 First detailed timing is preferred timing Established timings supported: Standard timings supported: Detailed mode: Clock 138.780 MHz, 293 mm x 165 mm 1920 1966 1996 2080 hborder 0 1080 1082 1086 1112 vborder 0 -hsync -vsync Detailed mode: Clock 92.520 MHz, 293 mm x 165 mm 1920 1966 1996 2080 hborder 0 1080 1082 1086 1112 vborder 0 -hsync -vsync ASCII string: CMN ASCII string: N133HSE-EA3 Checksum: 0xa1 EDID block does NOT conform to EDID 1.3! Missing name descriptor Missing monitor ranges $ sudo lshw -c video *-display description: VGA compatible controller product: Broadwell-U Integrated Graphics vendor: Intel Corporation physical id: 2 bus info: pci@:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:50 memory:b100-b1ff memory:c000-cfff ioport:4000(size=64) $ glxinfo | grep -i vendor server glx vendor string: SGI client glx vendor string: Mesa Project and SGI OpenGL vendor string: Intel Open Source Technology Center $ glxinfo | grep -i render direct rendering: Yes GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2) GL_ARB_conditional_render_inverted, GL_ARB_conservative_depth, GL_MESA_texture_signed_rgba, GL_NV_conditional_render, GL_NV_depth_clamp, GL_ARB_conditional_render_inverted, GL_ARB_conservative_depth, GL_NV_conditional_render, GL_NV_depth_clamp, GL_NV_light_max_exponent, GL_OES_element_index_uint, GL_OES_fbo_render_mipmap, Reply at: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1522922/comments/0 On 2015-07-19T11:18:11+00:00 Furniss-tom wrote: Created attachment 117244 intel-reg-dumper Reply at: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1522922/comments/1 On 2015-07-19T11:18:44+00:00 Furniss-tom wrote: Created attachment 117245 edid file Reply at: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1522922/comments/2 On 2015-07-19T11:19:26+00:00 Furniss-tom wrote: Created attachment 117246 xrandr --verbose Reply at:
[Bug 1522922] Re: Screen flickering in Intel i915 driver
** Also affects: libdrm (Ubuntu) Importance: Undecided Status: New ** Bug watch added: freedesktop.org Bugzilla #91393 https://bugs.freedesktop.org/show_bug.cgi?id=91393 ** Also affects: nouveau via https://bugs.freedesktop.org/show_bug.cgi?id=91393 Importance: Unknown Status: Unknown ** No longer affects: linux (Ubuntu) ** Changed in: libdrm (Ubuntu) Importance: Undecided => Critical ** Changed in: libdrm (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
