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Hi,
after this mornings update from 4.5.4-1 to 4.6.1-2 on my laptop my GDM started to freeze. I had to downgrade the kernel again to get it working again. Here is what i could find in the journal:
Jun 08 10:15:29 edi kernel: WARNING: CPU: 0 PID: 1092 at drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b0/0x1c0 [drm]
Jun 08 10:15:29 edi kernel: vblank wait timed out on crtc 0
Jun 08 10:15:29 edi kernel: Modules linked in: arc4 btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops mousedev videobuf2_v4l2 videobuf2_core snd_usb_audio snd_usbmidi_lib snd_rawmidi snd_seq_device cdc_mbim videodev joydev media cdc_wdm cdc_n
Jun 08 10:15:29 edi kernel: i2c_algo_bit snd_timer toshiba_acpi mei sparse_keymap led_class snd soundcore tpm_tis tpm thermal toshiba_bluetooth toshiba_haps rfkill battery wmi fjes ac video button processor sch_fq_codel vboxnetflt(O) vboxnetadp(O) pci_stub vboxpci(O) vbo
Jun 08 10:15:29 edi kernel: CPU: 0 PID: 1092 Comm: gnome-shell Tainted: G O 4.6.1-2-ARCH #1
Jun 08 10:15:29 edi kernel: Hardware name: TOSHIBA PORTEGE Z30-A/PORTEGE Z30-A, BIOS Version 3.70 07/25/2014
Jun 08 10:15:29 edi kernel: 0000000000000286 00000000a8a419ac ffff8801f01379e0 ffffffff812e5452
Jun 08 10:15:29 edi kernel: ffff8801f0137a30 0000000000000000 ffff8801f0137a20 ffffffff8107a69b
Jun 08 10:15:29 edi kernel: 0000052e1440f000 ffff88021440f000 0000000000000000 0000000000000000
Jun 08 10:15:29 edi kernel: Call Trace:
Jun 08 10:15:29 edi kernel: [<ffffffff812e5452>] dump_stack+0x63/0x81
Jun 08 10:15:29 edi kernel: [<ffffffff8107a69b>] __warn+0xcb/0xf0
Jun 08 10:15:29 edi kernel: [<ffffffff8107a71f>] warn_slowpath_fmt+0x5f/0x80
Jun 08 10:15:29 edi kernel: [<ffffffff810bcfc5>] ? finish_wait+0x55/0x70
Jun 08 10:15:29 edi kernel: [<ffffffffa048db00>] drm_wait_one_vblank+0x1b0/0x1c0 [drm]
Jun 08 10:15:29 edi kernel: [<ffffffff810bd460>] ? wake_atomic_t_function+0x60/0x60
Jun 08 10:15:29 edi kernel: [<ffffffffa0696b30>] hsw_disable_ips+0x80/0x170 [i915]
Jun 08 10:15:29 edi kernel: [<ffffffffa0696c7a>] intel_pre_disable_primary+0x5a/0x80 [i915]
Jun 08 10:15:29 edi kernel: [<ffffffffa0696d77>] intel_pre_plane_update+0xd7/0x110 [i915]
Jun 08 10:15:29 edi kernel: [<ffffffffa0697739>] intel_atomic_commit+0x409/0x15f0 [i915]
Jun 08 10:15:29 edi kernel: [<ffffffffa04a6aa2>] ? drm_atomic_check_only+0x182/0x600 [drm]
Jun 08 10:15:29 edi kernel: [<ffffffffa04a7258>] ? drm_atomic_set_mode_prop_for_crtc+0x28/0x110 [drm]
Jun 08 10:15:29 edi kernel: [<ffffffffa04a6f57>] drm_atomic_commit+0x37/0x60 [drm]
Jun 08 10:15:29 edi kernel: [<ffffffffa058ed5a>] drm_atomic_helper_set_config+0x7a/0xb0 [drm_kms_helper]
Jun 08 10:15:29 edi kernel: [<ffffffffa0496992>] drm_mode_set_config_internal+0x62/0x100 [drm]
Jun 08 10:15:29 edi kernel: [<ffffffffa049a64f>] drm_mode_setcrtc+0x2ef/0x520 [drm]
Jun 08 10:15:29 edi kernel: [<ffffffffa048baa2>] drm_ioctl+0x152/0x540 [drm]
Jun 08 10:15:29 edi kernel: [<ffffffffa049a360>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
Jun 08 10:15:29 edi kernel: [<ffffffff81216c7c>] ? mntput_no_expire+0x2c/0x1b0
Jun 08 10:15:29 edi kernel: [<ffffffff81209ba3>] do_vfs_ioctl+0xa3/0x5d0
Jun 08 10:15:29 edi kernel: [<ffffffff81213fd7>] ? __fget+0x77/0xb0
Jun 08 10:15:29 edi kernel: [<ffffffff8120a149>] SyS_ioctl+0x79/0x90
Jun 08 10:15:29 edi kernel: [<ffffffff815c72b2>] entry_SYSCALL_64_fastpath+0x1a/0xa4
Jun 08 10:15:29 edi kernel: ---[ end trace c2c1b67ed8285019 ]---
Jun 08 10:15:29 edi kernel: ------------[ cut here ]------------
Jun 08 10:15:36 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:36 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:36 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:36 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:36 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:36 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:37 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:37 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:37 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:37 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:37 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:37 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:38 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Jun 08 10:15:38 edi kernel: [drm:intel_psr_work [i915]] *ERROR* Timed out waiting for PSR Idle for re-enable
Google yields nothing interesting in that area though... I'm glad I was able to REISUB.
Last edited by itti (2016-06-08 08:42:47)
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same thing happened. i have 3 monitor setup, laptop + hdmi + vga and vga and hdmi are ok and laptop monitor (eDP1) started flickering like crazy. had to downgrade.
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Yeah should have mentioned that. I use a docking station with 2 monitors in addition to the laptop display. The two monitors seemed to be working ok but the laptop output was frozen. This happened also without the docking station (only laptop display) though.
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after kernel update, system-boot not start, netctl not start, comwyx not start, / boot not start
demoted the kernel all works except conkywx
hp-envy dv7
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Same here.
kernel: Linux version 4.6.1-2-ARCH (builduser@tobias) (gcc version 6.1.1 20160501 (GCC) ) #1 SMP PREEMPT
Jun 08 15:49:21 kernel: [drm] stuck on render ring
Jun 08 15:49:21 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, in Xorg [564], reason: Ring hung, action: reset
Jun 08 15:49:21 kernel: [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
Jun 08 15:49:21 kernel: [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
Jun 08 15:49:21 kernel: [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
Jun 08 15:49:21 kernel: [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
Jun 08 15:49:21 kernel: [drm] GPU crash dump saved to /sys/class/drm/card0/error
Jun 08 15:49:21 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:49:29 kernel: [drm] stuck on render ring
Jun 08 15:49:29 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, in Xorg [564], reason: Ring hung, action: reset
Jun 08 15:49:29 kernel: [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too fast, banning!
Jun 08 15:49:29 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:49:37 kernel: [drm] stuck on render ring
Jun 08 15:49:37 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:49:37 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:49:45 kernel: [drm] stuck on render ring
Jun 08 15:49:45 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:49:45 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:49:53 kernel: [drm] stuck on render ring
Jun 08 15:49:53 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:49:53 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:50:01 kernel: [drm] stuck on render ring
Jun 08 15:50:01 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:50:01 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:50:09 kernel: [drm] stuck on render ring
Jun 08 15:50:09 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:50:09 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:50:17 kernel: [drm] stuck on render ring
Jun 08 15:50:17 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:50:17 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:50:26 dbus[455]: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service'
Jun 08 15:50:26 dbus[455]: [system] Activation via systemd failed for unit 'dbus-org.bluez.service': Unit dbus-org.bluez.service
Jun 08 15:50:32 kernel: [drm] stuck on render ring
Jun 08 15:50:32 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:50:32 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:50:40 kernel: [drm] stuck on render ring
Jun 08 15:50:40 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:50:40 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:50:45 dbus[455]: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service'
Jun 08 15:50:45 dbus[455]: [system] Activation via systemd failed for unit 'dbus-org.bluez.service': Unit dbus-org.bluez.service
Jun 08 15:50:51 kernel: [drm] stuck on render ring
Jun 08 15:50:51 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:50:51 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:50:59 kernel: [drm] stuck on render ring
Jun 08 15:50:59 kernel: [drm] GPU HANG: ecode 8:0:0xfffffffe, reason: Ring hung, action: reset
Jun 08 15:50:59 kernel: drm/i915: Resetting chip after gpu hang
Jun 08 15:59:27 kernel: QDBusConnection[628]: segfault at 7fe347ffa6f8 ip 00007fe3696da76f sp 00007fe3577fdac0 error 4 in libQt5
Jun 08 15:59:27 systemd[1]: Requested transaction contradicts existing jobs: Transaction is destructive.
Jun 08 15:59:27 systemd[1]: systemd-coredump.socket: Failed to queue service startup job (Maybe the service file is missing or n
Jun 08 15:59:27 systemd[1]: systemd-coredump.socket: Unit entered failed state.
Jun 08 15:59:27 kernel: ------------[ cut here ]------------
Jun 08 15:59:27 kernel: WARNING: CPU: 0 PID: 564 at drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b0/0x1c0 [drm]
Jun 08 15:59:27 kernel: vblank wait timed out on crtc 2
Jun 08 15:59:27 kernel: Modules linked in: sha256_ssse3 sha256_generic hmac drbg ansi_cprng ctr ccm fuse ir_rc6_decoder arc4 iTC
Jun 08 15:59:27 kernel: rfkill tpm_tis 8250_dw i2c_designware_platform spi_pxa2xx_platform tpm i2c_designware_core evdev mac_hi
Jun 08 15:59:27 kernel: CPU: 0 PID: 564 Comm: Xorg Not tainted 4.6.1-2-ARCH #1
Jun 08 15:59:27 kernel: Hardware name: /NUC5PPYB, BIOS PYBSWCEL.86A.0053.2016.0401.1154 04/01/2016
Jun 08 15:59:27 kernel: 0000000000000286 000000004129ee05 ffff8801784039e0 ffffffff812e5452
Jun 08 15:59:27 kernel: ffff880178403a30 0000000000000000 ffff880178403a20 ffffffff8107a69b
Jun 08 15:59:27 kernel: 0000052e00000001 ffff88017a5cd800 0000000000000002 0000000000000000
Jun 08 15:59:27 kernel: Call Trace:
Jun 08 15:59:27 kernel: [<ffffffff812e5452>] dump_stack+0x63/0x81
Jun 08 15:59:27 kernel: [<ffffffff8107a69b>] __warn+0xcb/0xf0
Jun 08 15:59:27 kernel: [<ffffffff8107a71f>] warn_slowpath_fmt+0x5f/0x80
Jun 08 15:59:27 kernel: [<ffffffff810bcfc5>] ? finish_wait+0x55/0x70
Jun 08 15:59:27 kernel: [<ffffffffa0007b00>] drm_wait_one_vblank+0x1b0/0x1c0 [drm]
Jun 08 15:59:27 kernel: [<ffffffff810bd460>] ? wake_atomic_t_function+0x60/0x60
Jun 08 15:59:27 kernel: [<ffffffffa015ac72>] intel_pre_disable_primary+0x52/0x80 [i915]
Jun 08 15:59:27 kernel: [<ffffffffa015ad77>] intel_pre_plane_update+0xd7/0x110 [i915]
Jun 08 15:59:27 kernel: [<ffffffffa015b877>] intel_atomic_commit+0x547/0x15f0 [i915]
Jun 08 15:59:27 kernel: [<ffffffff811d7701>] ? __kmalloc_track_caller+0x31/0x240
Jun 08 15:59:27 kernel: [<ffffffffa0020aa2>] ? drm_atomic_check_only+0x182/0x600 [drm]
Jun 08 15:59:27 kernel: [<ffffffffa0020f57>] drm_atomic_commit+0x37/0x60 [drm]
Jun 08 15:59:27 kernel: [<ffffffffa009293c>] drm_atomic_helper_disable_plane+0xac/0xf0 [drm_kms_helper]
Jun 08 15:59:27 kernel: [<ffffffffa001f9b5>] ? drm_modeset_lock+0x35/0xe0 [drm]
Jun 08 15:59:27 kernel: [<ffffffffa0010d6c>] __setplane_internal+0x16c/0x250 [drm]
Jun 08 15:59:27 kernel: [<ffffffffa001fce4>] ? drm_modeset_lock_all_ctx+0xa4/0xb0 [drm]
Jun 08 15:59:27 kernel: [<ffffffffa00142fa>] drm_mode_setplane+0x14a/0x1b0 [drm]
Jun 08 15:59:27 kernel: [<ffffffffa0005aa2>] drm_ioctl+0x152/0x540 [drm]
Jun 08 15:59:27 kernel: [<ffffffffa00141b0>] ? drm_plane_check_pixel_format+0x50/0x50 [drm]
Jun 08 15:59:27 kernel: [<ffffffff8120e27d>] ? __dentry_kill+0x14d/0x1d0
Jun 08 15:59:27 kernel: [<ffffffff81216c7c>] ? mntput_no_expire+0x2c/0x1b0
Jun 08 15:59:27 kernel: [<ffffffff81209ba3>] do_vfs_ioctl+0xa3/0x5d0
Jun 08 15:59:27 kernel: [<ffffffff81086c7b>] ? recalc_sigpending+0x1b/0x50
Jun 08 15:59:27 kernel: [<ffffffff810877d1>] ? __set_task_blocked+0x41/0xa0
Jun 08 15:59:27 kernel: [<ffffffff81213fd7>] ? __fget+0x77/0xb0
Jun 08 15:59:27 kernel: [<ffffffff8120a149>] SyS_ioctl+0x79/0x90
Jun 08 15:59:27 kernel: [<ffffffff815c72b2>] entry_SYSCALL_64_fastpath+0x1a/0xa4
Jun 08 15:59:27 kernel: ---[ end trace 395028bc466554fa ]---
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I think it might be loosely related to this "PSR" stuff. I found this comment in the bug tracker: https://bugs.archlinux.org/task/49371#comment147193
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I had bad flickering with the 4.6.1-2 kernel but adding i915.enable_psr=0 kernel parameter fixed it.
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Same problem here, It freezed several times until I decide to downgrade (on a simple laptop).
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I had similar issues on a pair of intel NUC's with i915 integrated graphics chips. For me, I could boot the desktop (XFCE with LXDM), but as soon as I opened Firefox or Chrome, the desktop would lockup. I could remotely SSH in and look at the journal logs and saw GPU HANG in there.
I tried installing the latest xf86-video-intel-git from the AUR, no luck, same issues.
I tried adding the i915.enable_psr=0 kernel parameter and it looked like it might help, but eventually the problems came back.
I ultimately downgraded the kernel to 4.5.4-1 and am currently running ok with that.
Last edited by bigcajun (2016-06-08 19:46:34)
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Same issue on a media center setup running a Celeron N3150 with HDMI output - i was getting video freezes about 2 minutes after each reboot. Downgrading to 4.5.4-1 fixed it for me so it is definitely related to the 4.6.x family.
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Yeah, something is seriously broken. I got the same GPU hang after upgrading to 4.6.1-2 on a Zotac CI323 (Celeron N3150) small-form-factor PC. Tried with the Intel DDX driver, plain modesetting and 4.6.2-1 kernel from the testing repo.
Only downgrading to 4.5.4-1 worked.
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Same issue here with kernel 4.6 on a Toshiba Portege (Intel gfx): 100% reproducible freeze as soon as gdm appears.
Last edited by halogen (2016-06-09 06:11:38)
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If https://bugs.freedesktop.org/show_bug.cgi?id=95176#c28 is correct then we will have to wait for 4.7 which apparently fixes the problems.
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Same issue on HP 850 G1.
i915.enable_psr=0 helped for now.
EDIT: helped with screen blinking.
Firefox and terminal would probably work faster on old Pentium 166Mhz. I'll downgrade for now.
Last edited by Yax (2016-06-09 19:21:54)
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Same problem here (XPS 13, intel gfx). Though, I didn't get anything in logs. System just freezes after a random amount of time on the 4.6.
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place image in boot errors with the kernel 4.6,multiboot and archlinux systemd-boot,when I install the new kernel, start the first distro with mate, but when I start the second distro, I have these errors.
http://imgur.com/y0tjH7a
hp-envy dv7
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Same problem here. My laptop would freeze after seeing some flickering on the screen. I downgraded to 4.5 for now. Will try i915.enable_psr=0 later.
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Similar behaviour on my older Lenovo Yoga 2 Pro
i5-4200U
Intel Haswell-ULT Integrated Graphics Controller
Immediately after the upgrade to 4.6.1-2 I noticed a stream of unprecedented warning messages, repeated every few seconds:
kernel: [drm:intel_pipe_update_start [i915]] *ERROR* Potential atomic update failure on pipe A
...including the occasional error detected:
kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=32591 end=32592) time 10 us, min 1789, max 1799, scanline start 17
Since all seemed normal otherwise I was blissfully ignoring these until after 20-30 minutes the display began flashing on and off unusably, forcing a hardware shutdown and a switch to linux-lts for the time being.
[Update: unsurprisingly, same behaviour after update to linux 4.6.2-1]
Last edited by brix (2016-06-09 19:55:28)
Enough is more.
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To me (i3-5005U Broadwell) with PSR enabled by default in kernel 4.6, fullscreen videos in Firefox freeze - until I move the cursor.
This happened too when I enabled PSR by myself in 4.5 kernel.
Since i915.enable_psr=0 strangely it didn't help, I had to downgrade to LTS (I had a crasher with dosbox too).
EDIT: ------8<------8<------8<------8<------8<------8<------8<------8<------8<------
my bad: PSR is still disabled for my chip. Obviously disabling FBC did the trick!
-----8<------8<------8<------8<------8<------8<------8<------8<------8<------8<------
Last edited by josephk (2016-06-11 09:58:23)
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disabling fbc and psr (adding: options i915 enable_fbc=0 enable_psr=0 to /etc/modprobe.d/i915.conf) did the trick for me.
Last edited by panifex (2016-06-10 07:22:55)
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I had similar issues on a pair of intel NUC's with i915 integrated graphics chips. For me, I could boot the desktop (XFCE with LXDM), but as soon as I opened Firefox or Chrome, the desktop would lockup. I could remotely SSH in and look at the journal logs and saw GPU HANG in there.
I tried installing the latest xf86-video-intel-git from the AUR, no luck, same issues.
I tried adding the i915.enable_psr=0 kernel parameter and it looked like it might help, but eventually the problems came back.
I ultimately downgraded the kernel to 4.5.4-1 and am currently running ok with that.
UPDATE: disabling fbc and psr worked for me as well
UPDATE 2: I spoke too soon. Disabling fbc seemed to help, but only made the problem take longer to come back. Downgraded kernel again back to 4.5.4....
Last edited by bigcajun (2016-06-10 21:21:46)
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Still crashing here even with fbc and psr disabled. Oh well... looks like downgrading is the only option until 4.7 is released.
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Hi. For those dealing with flickering, it may help to use the TearFree option: create /etc/X11/xorg.conf.d/20-intel.conf with
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
# Option "AccelMethod" "UXA" # or: "glamor"
VideoRam 2000000
Option "TearFree" "true"
EndSection
This fixed extremely bad video performance that (I think) started with 4.6.1-2 for me on a 440p, which seems like what a lot of people are using. The commented out line was from a forum post I stole this snippet from; maybe if TearFree doesn't work then uncommenting that will do some good.
Could be that my problems were unrelated to 4.6.1-2; they happened after a fairly big upgrade, in which case sorry for the false hope.
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I've fixed this by switching to linux-lts kernel. Although it is odd that a minor kernel update breaks something like Firefox... anyway, that's we we archinoids get for always being on the bleeding edge.
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I've had the same issue on Broadwell. While digging around found that in order to solve an issue with older kernel (Kernel crashing w/kernels 4.0+ on Broadwell/Core-M chips) I had to add this in my kernel paramters
i915.enable_execlists=0
I've removed it and now 4.6.2-1 works as smooth as possible. Not sure if related, but I have these i915 settings in /etc/modprobe.d/i915.conf:
options i915 enable_rc6=7 enable_fbc=1 semaphores=1
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