Re: driver crashes if I try to het 2560 x 1440 @ 50Hz CVT-RB running under Linux... Ideas?

"Parenteau, Paul A" <paul.a.parenteau@xxxxxxxxx> · Tue, 26 Apr 2016 17:18:16 +0000

Have you tried this setup using Fedora 23 without the 1.4.0 Installer?  If not, please do and report back.

From: Intel-gfx [mailto:intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx]
On Behalf Of Andreas Balg

Sent: Tuesday, April 26, 2016 10:08 AM

To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx

Subject: [Intel-gfx] driver crashes if I try to het 2560 x 1440 @ 50Hz CVT-RB running under Linux... Ideas?

Hi everybody,

I'm trying to setup a 27" screen on Fedora 23 (intel driver installer 1.4.0 Q4 2015) attached to an HDMI (ultrabook ASUS UX31A). I know it needs "reduced blank" and a timing of max 50Hz  in order to work - with
 the max Bandwith on HDMI (at least that way it works on Windows using the same setup and "CustomResolution.exe") - But it dies not work so let me describe what I did so far:

1st guess)
  "cvt -r 2560 1440 50"
>> ERROR: Multiple of 60Hz refresh rate required for reduced blanking.
2nd guess)

Also The same seems to be true for "gtf"
  "gtf 2560 1440 50"
# 2560x1440 @ 50.00 Hz (GTF) hsync: 74.10 kHz; pclk: 256.09 MHz
Modeline "2560x1440_50.00"  256.09  2560 2728 3008 3456  1440 1441 1444 1482  -HSync +Vsync
>>>> Does not work 
3rd guess)
A Modeline that I've found on the internet :
xrandr --newmode "2560x1440_50.00_rb" 200.25 2560 2608 2640 2720 1440 1443 1448 1474 +HSync -Vsync
xrandr --addmode HDMI1 "2560x1440_50.00_rb"
xrandr --output HDMI1 --mode "2560x1440_50.00_rb"
>>>> Does not work either => Results in:
Apr 23 15:30:39 schleppi-ultra.balg.lan /usr/libexec/gdm-x-session[2986]: (II) intel(0): resizing framebuffer to 5504x1440
Apr 23 15:30:39 schleppi-ultra.balg.lan /usr/libexec/gdm-x-session[2986]: (II) intel(0): switch to mode 2560x1440@49.9 on HDMI1 using pipe 0, position (0, 0), rotation normal, reflection n
Apr 23 15:30:51 schleppi-ultra.balg.lan /usr/libexec/gdm-x-session[2986]: (II) intel(0): resizing framebuffer to 5504x1180
Apr 23 15:30:51 schleppi-ultra.balg.lan /usr/libexec/gdm-x-session[2986]: (II) intel(0): switch to mode 2048x1152@60.0 on HDMI1 using pipe 0, position (0, 0), rotation normal, reflection n
Apr 23 15:30:51 schleppi-ultra.balg.lan kernel: [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B
Apr 23 15:30:52 schleppi-ultra.balg.lan kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun

Last try)
Read the modeline from "PowerStrip" from a running windows on the same machine that actually runs the wanted resolution:
xrandr --newmode "2560x1440" 200.002 2560 2608 2640 2720 1440 1443 1448 1474 -hsync -vsync
But this only switches to a black screen and causes the "pipe_off wait timed out" message in dmesg below...

I've found the following two graphics related problems in the logs (dmesg) which might help as well:
[    2.625304] ------------[ cut here ]------------
[    2.625335] WARNING: CPU: 0 PID: 6 at drivers/gpu/drm/drm_irq.c:1326 drm_wait_one_vblank+0x1b5/0x1c0 [drm]()
[    2.625335] vblank wait timed out on crtc 0
[    2.625362] Modules linked in: i915 rtsx_usb_sdmmc mmc_core rtsx_usb hid_logitech_hidpp i2c_algo_bit drm_kms_helper drm serio_raw video fjes hid_logitech_dj
[    2.625368] CPU: 0 PID: 6 Comm: kworker/u8:0 Tainted: G     U          4.4.7-300.fc23.x86_64 #1
[    2.625370] Hardware name: ASUSTeK COMPUTER INC. UX31A/UX31A, BIOS UX31A.219 06/14/2013
[    2.625380] Workqueue: events_unbound async_run_entry_fn
[    2.625385]  0000000000000286 00000000d003577f ffff88011a03f818 ffffffff813b5f8e
[    2.625389]  ffff88011a03f860 ffffffffa007e772 ffff88011a03f850 ffffffff810a4122
[    2.625392]  ffff88003e677000 0000000000000000 0000000000000000 0000000000000006
[    2.625394] Call Trace:
[    2.625405]  [<ffffffff813b5f8e>] dump_stack+0x63/0x85
[    2.625413]  [<ffffffff810a4122>] warn_slowpath_common+0x82/0xc0
[    2.625418]  [<ffffffff810a41bc>] warn_slowpath_fmt+0x5c/0x80
[    2.625426]  [<ffffffff810e6023>] ? finish_wait+0x53/0x70
[    2.625450]  [<ffffffffa0052c15>] drm_wait_one_vblank+0x1b5/0x1c0 [drm]
[    2.625456]  [<ffffffff810e62e0>] ? wake_atomic_t_function+0x70/0x70
[    2.625552]  [<ffffffffa01736d5>] intel_atomic_commit+0x475/0x1420 [i915]
[    2.625588]  [<ffffffffa006b1be>] ? drm_atomic_check_only+0x18e/0x590 [drm]
[    2.625618]  [<ffffffffa006b5f7>] drm_atomic_commit+0x37/0x60 [drm]
[    2.625634]  [<ffffffffa00c409f>] restore_fbdev_mode+0x22f/0x260 [drm_kms_helper]
[    2.625649]  [<ffffffffa00c6273>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
[    2.625660]  [<ffffffffa00c62ed>] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper]
[    2.625744]  [<ffffffffa018a3ba>] intel_fbdev_set_par+0x1a/0x60 [i915]
[    2.625750]  [<ffffffff81428050>] fbcon_init+0x570/0x5f0
[    2.625755]  [<ffffffff814a9aea>] visual_init+0xca/0x130
[    2.625759]  [<ffffffff814ab981>] do_bind_con_driver+0x1c1/0x3a0
[    2.625764]  [<ffffffff814abe99>] do_take_over_console+0x149/0x1a0
[    2.625769]  [<ffffffff81423eb7>] do_fbcon_takeover+0x57/0xb0
[    2.625773]  [<ffffffff81428ac8>] fbcon_event_notify+0x658/0x750
[    2.625778]  [<ffffffff810c355a>] notifier_call_chain+0x4a/0x70
[    2.625783]  [<ffffffff810c3897>] __blocking_notifier_call_chain+0x47/0x60
[    2.625787]  [<ffffffff810c38c6>] blocking_notifier_call_chain+0x16/0x20
[    2.625792]  [<ffffffff8142e71b>] fb_notifier_call_chain+0x1b/0x20
[    2.625798]  [<ffffffff81430a3f>] register_framebuffer+0x20f/0x350
[    2.625812]  [<ffffffffa00c659a>] drm_fb_helper_initial_config+0x28a/0x410 [drm_kms_helper]
[    2.625889]  [<ffffffffa018aebb>] intel_fbdev_initial_config+0x1b/0x20 [i915]
[    2.625894]  [<ffffffff810c4fca>] async_run_entry_fn+0x4a/0x140
[    2.625900]  [<ffffffff810bc5c6>] process_one_work+0x156/0x430
[    2.625904]  [<ffffffff810bc8ee>] worker_thread+0x4e/0x450
[    2.625909]  [<ffffffff810bc8a0>] ? process_one_work+0x430/0x430
[    2.625912]  [<ffffffff810c2678>] kthread+0xd8/0xf0
[    2.625916]  [<ffffffff810c25a0>] ? kthread_worker_fn+0x160/0x160
[    2.625921]  [<ffffffff817a144f>] ret_from_fork+0x3f/0x70
[    2.625925]  [<ffffffff810c25a0>] ? kthread_worker_fn+0x160/0x160
[    2.625928] ---[ end trace cec8cc6321f01362 ]---

2) And this one as well:

[   13.375747] ------------[ cut here ]------------
[   13.375827] WARNING: CPU: 3 PID: 1894 at drivers/gpu/drm/i915/intel_display.c:1144 intel_disable_pipe+0x2b6/0x2c0 [i915]()
[   13.375831] pipe_off wait timed out
[   13.375834] Modules linked in: cmac fuse xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables evdi(OE) uhid bnep rtsx_usb_ms memstick arc4 intel_rapl iosf_mbi x86_pkg_temp_thermal coretemp kvm_intel btusb iTCO_wdt asus_nb_wmi kvm iTCO_vendor_support asus_wmi sparse_keymap btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core irqbypass v4l2_common crct10dif_pclmul iwlmvm crc32_pclmul vfat fat snd_hda_codec_hdmi videodev mac80211 crc32c_intel snd_hda_codec_realtek snd_hda_codec_generic media snd_hda_intel iwlwifi snd_hda_codec cfg80211 snd_hda_core snd_hwdep snd_seq joydev snd_seq_device
[   13.375920]  snd_pcm i2c_i801 lpc_ich rfkill wmi int3403_thermal acpi_als mei_me kfifo_buf industrialio snd_timer int3402_thermal mei int3400_thermal int340x_thermal_zone acpi_thermal_rel snd tpm_tis shpchp soundcore tpm nfsd binfmt_misc nfs_acl lockd auth_rpcgss grace sunrpc i915 rtsx_usb_sdmmc mmc_core rtsx_usb hid_logitech_hidpp i2c_algo_bit drm_kms_helper drm serio_raw video fjes hid_logitech_dj
[   13.375971] CPU: 3 PID: 1894 Comm: gnome-shell Tainted: G     U  W  OE   4.4.7-300.fc23.x86_64 #1
[   13.375975] Hardware name: ASUSTeK COMPUTER INC. UX31A/UX31A, BIOS UX31A.219 06/14/2013
[   13.375979]  0000000000200286 00000000827c27d7 ffff880115447a78 ffffffff813b5f8e
[   13.375985]  ffff880115447ac0 ffffffffa01d6de8 ffff880115447ab0 ffffffff810a4122
[   13.375991]  ffff88003d940000 0000000000070008 00000000fffb9ff6 0000000000070008
[   13.375996] Call Trace:
[   13.376011]  [<ffffffff813b5f8e>] dump_stack+0x63/0x85
[   13.376021]  [<ffffffff810a4122>] warn_slowpath_common+0x82/0xc0
[   13.376027]  [<ffffffff810a41bc>] warn_slowpath_fmt+0x5c/0x80
[   13.376086]  [<ffffffffa016a446>] intel_disable_pipe+0x2b6/0x2c0 [i915]
[   13.376137]  [<ffffffffa016a7fc>] ironlake_crtc_disable+0x8c/0x7c0 [i915]
[   13.376182]  [<ffffffffa0166adc>] ? intel_crtc_disable_planes+0xdc/0xf0 [i915]
[   13.376231]  [<ffffffffa0173387>] intel_atomic_commit+0x127/0x1420 [i915]
[   13.376283]  [<ffffffffa006b1be>] ? drm_atomic_check_only+0x18e/0x590 [drm]
[   13.376320]  [<ffffffffa006acbd>] ? drm_atomic_set_mode_prop_for_crtc+0x2d/0x110 [drm]
[   13.376350]  [<ffffffffa006b5f7>] drm_atomic_commit+0x37/0x60 [drm]
[   13.376373]  [<ffffffffa00c34c6>] drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper]
[   13.376405]  [<ffffffffa005ab62>] drm_mode_set_config_internal+0x62/0x100 [drm]
[   13.376434]  [<ffffffffa005eee2>] drm_mode_setcrtc+0x3d2/0x4f0 [drm]
[   13.376457]  [<ffffffffa0050602>] drm_ioctl+0x152/0x540 [drm]
[   13.376485]  [<ffffffffa005eb10>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]
[   13.376494]  [<ffffffff813407fc>] ? selinux_file_ioctl+0x10c/0x1c0
[   13.376503]  [<ffffffff81241428>] do_vfs_ioctl+0x298/0x480
[   13.376510]  [<ffffffff8122ff5e>] ? ____fput+0xe/0x10
[   13.376518]  [<ffffffff813380b3>] ? security_file_ioctl+0x43/0x60
[   13.376524]  [<ffffffff81241689>] SyS_ioctl+0x79/0x90
[   13.376533]  [<ffffffff817a10ee>] entry_SYSCALL_64_fastpath+0x12/0x71
[   13.376592] ---[ end trace cec8cc6321f01363 ]---
I've tried this using Wayland and Classic X as well ...
Any hints on how to get this thing up and running with this stuff - attached Display is a  DELL U2715H ?? -
Any more helpful information needed ?
lspci -kvnn
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])

    Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]

    Flags: bus master, fast devsel, latency 0, IRQ 28

    Memory at f7800000 (64-bit, non-prefetchable) [size=4M]

    Memory at e0000000 (64-bit, prefetchable) [size=256M]

    I/O ports at f000 [size=64]

    Expansion ROM at <unassigned> [disabled]

    Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-

    Capabilities: [d0] Power Management version 2

    Capabilities: [a4] PCI Advanced Features

    Kernel driver in use: i915

    Kernel modules: i915

modinfo i915
filename:      /lib/modules/4.4.7-300.fc23.x86_64/kernel/drivers/gpu/drm/i915/i915.ko.xz
license:        GPL and additional rights
description:    Intel Graphics
author:         Intel Corporation
author:         Tungsten Graphics, Inc.
firmware:       i915/bxt_dmc_ver1.bin
firmware:       i915/skl_dmc_ver1.bin
firmware:       i915/skl_guc_ver4.bin

Hoping to see any more hints that I did not think about so far ...
Cheers..
Andreas

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