Created attachment 125269 [details] dmesg log Hello, After upgrading Fedora 24 to 4.6.3 kernel, screen started to flicker. Same problem persists with 4.6.4 and 4.7-rc7 kernels. i915.enable_fbc=0, i915.enable_fbc=1 and i915.i915_enable_rc6=0 doesn't helps. dmesg collected from: 4.6.4-301.fc24.x86_64. Machine: Acer v3-722G, i7-4702MQ, Intel HD Graphics 4600. Downstream bug: https://bugzilla.redhat.com/show_bug.cgi?id=1353008 Thanks!
Created attachment 125270 [details] Video of laptop screen
Hello, As workaround adding parameter "i915.enable_psr=0" to kernel line, seems to work. Tested on Fedora 24 (kernel 4.6) and Rawhide (kernel 4.8), and OpenSuse (Kernel 4.6). The regression seems to present from kernel version > 4.5
Hello, I had same issue after update. Flickering gone after I removed this line from config-4.6.4-301.fc24.x86_64 file: CONFIG_DRM_I915_USERPTR=y I'm new to Linux, so have no idea what it means, but since there is no such line in same file for 4.5.5-300, I thought it can't be so wrong, and it does work. :) If adding parameter "i915.enable_psr=0" is better solution, could someone tell me how to do that, pretty please? :) Toshiba Qosmio X70-B-10T Intel® Core™ i7-4720HQ CPU @ 2.60GHz × 8
I've got same symtoms on Lenovo Yoga2 pro (hidpi), under Arch linux, stock kernel 4.6.4-1-ARCH. xf86-video-intel version 1:2.99.917+688+g49daf5d-1 (stock arch package, updated daily). Sorry for the delay ; the problem has been happening for at least 2 months, but it took me ages to qualify it, and find it here on this bugtracker. Flickering happens every now and then (between one minute and 1-2 hour after having opened my graphical session). I can barely stop it by moving a lot my mouse cursor (screen stops flickering until i stop moving the cursor, where flickering happens again immediately). Flickering is resolved more durably by suspending the machine: on resume, I can work again until next flickering sequence (idem, between 1 minute and some hours). I'm currently testing the "i915.enable_psr=0" workaround to see if the bug occurs again. I will report here. Feel free to ask me about any missing information.
Seems like i915.enable_psr=0 solves the problem for me. It's been 6 hours without any flickering. For reference, I found this: https://lkml.org/lkml/2016/8/1/652
(In reply to Olivier Cortès from comment #5) > Seems like i915.enable_psr=0 solves the problem for me. > > It's been 6 hours without any flickering. > > For reference, I found this: > > https://lkml.org/lkml/2016/8/1/652 The patch discussed there has been merged in 4.8-rc1, so if people can test 4.8-rc1 that would be great. For Fedora users, there is a 4.8-rc1 build available here: http://koji.fedoraproject.org/koji/buildinfo?buildID=789477
Tried 4.8.0-0.rc1.git0.1.fc26 kernel from Fedora Rawhide: https://alt.fedoraproject.org/pub/alt/rawhide-kernel-nodebug/ . Flickering still persists and plus flickering appeared on virtual consoles.
I've been running my Lenovo 2 Pro (also Haswell graphics) on the current rawhide kernel (4.8.0-0.rc1.git3.1.fc26.x86_64) for a couple of hours and haven't seen any problems. idefix ~> uname -r 4.8.0-0.rc1.git3.1.fc26.x86_64 idefix ~> lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09) idefix ~> sudo grep -H '' /sys/module/i915/parameters/* | grep psr /sys/module/i915/parameters/enable_psr:1 Is there any way to tell whether panel self-refresh is actually being used? I'll update if I see any problems.
Created attachment 126498 [details] dmesg
Created attachment 126499 [details] dmesg
I have upgraded a Lenovo S540 from Fedora F23 (kernel-4.5.7-200.fc23.x86_64) to F24 (kernel-4.6.3-300.fc24.x86_24) and the display started flickering at the edges. The next kernel-4.8.0.0.rc1.git0.1.fc25.x86_64 flickered and produced a loop,while the display changed the brightness. Touching the mouse stopped the failure. Then it started again. Kernel-4.8.0.0.rc3.git0.1.fc25.x86_64 doesn't flicker any more, but the ugly loop with the changing brightness is still there during the boot process. When I turn off the computer the display turns into a very bright white. chipset: 4 x Intel®core i5-4210U CPU @ 1.70GHz system architecture: 64-bit xserver: 11.0 Fedora Project mesa: Mesa DRI Intel(R)Haswell Mobile kernel: 4.8.0-0.rc3.git0.1.fc25.x86_64 Linux distribution: Fedora 24 display connector: FHD, Laptop screen 1920*1080 px (full hd), mat.
(In reply to Peter Erdelyi from comment #11) > I have upgraded a Lenovo S540 from Fedora F23 (kernel-4.5.7-200.fc23.x86_64) > to F24 (kernel-4.6.3-300.fc24.x86_24) and the display started flickering at > the edges. The next kernel-4.8.0.0.rc1.git0.1.fc25.x86_64 flickered and > produced a loop,while the display changed the brightness. Touching the mouse > stopped the failure. Then it started again. > Kernel-4.8.0.0.rc3.git0.1.fc25.x86_64 doesn't flicker any more, but the ugly > loop with the changing brightness is still there during the boot process. > When I turn off the computer the display turns into a very bright white. > > chipset: 4 x Intel®core i5-4210U CPU @ 1.70GHz > system architecture: 64-bit > xserver: 11.0 Fedora Project > mesa: Mesa DRI Intel(R)Haswell Mobile > kernel: 4.8.0-0.rc3.git0.1.fc25.x86_64 > Linux distribution: Fedora 24 > display connector: FHD, Laptop screen 1920*1080 px (full hd), mat. Hello Peter, could you try updating your system to 4.10? a lot of new patches were merged recently.
(In reply to Elio from comment #12) > (In reply to Peter Erdelyi from comment #11) > > I have upgraded a Lenovo S540 from Fedora F23 (kernel-4.5.7-200.fc23.x86_64) > > to F24 (kernel-4.6.3-300.fc24.x86_24) and the display started flickering at > > the edges. The next kernel-4.8.0.0.rc1.git0.1.fc25.x86_64 flickered and > > produced a loop,while the display changed the brightness. Touching the mouse > > stopped the failure. Then it started again. > > Kernel-4.8.0.0.rc3.git0.1.fc25.x86_64 doesn't flicker any more, but the ugly > > loop with the changing brightness is still there during the boot process. > > When I turn off the computer the display turns into a very bright white. > > > > chipset: 4 x Intel®core i5-4210U CPU @ 1.70GHz > > system architecture: 64-bit > > xserver: 11.0 Fedora Project > > mesa: Mesa DRI Intel(R)Haswell Mobile > > kernel: 4.8.0-0.rc3.git0.1.fc25.x86_64 > > Linux distribution: Fedora 24 > > display connector: FHD, Laptop screen 1920*1080 px (full hd), mat. > > Hello Peter, could you try updating your system to 4.10? a lot of new > patches were merged recently. Hello Elio, thanks for your reply. I confirm that on Acer v3-722G with debian testing upgrading kernel to version 4.10.8 helps on flickering screen.
Reporters, can you resolve this now based on feedback?
I will resolve. Please re-open if issue still there.
Closing old verified.
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