Comment 48 for bug 1542939

I encounter the same issue after upgrading old Toshiba laptop from F22 (?) to F25. There is a several seconds delay when graphical mode is switched (e.g. just after Linux is starting to boot or when user is logged in in GDM). Quite annoying.

kernel-4.8.15-300.fc25.x86_64

> kernel: [drm:drm_atomic_helper_commit_cleanup_done [drm_kms_helper]] *ERROR* [CRTC:29:pipe B] flip_done timed out
> kernel: ------------[ cut here ]------------
> kernel: WARNING: CPU: 1 PID: 1446 at drivers/gpu/drm/drm_irq.c:1224 drm_wait_one_vblank+0x1b6/0x1c0 [drm]
> kernel: vblank wait timed out on crtc 1
> kernel: Modules linked in: fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtab
> kernel: snd_hwdep ath tifm_7xx1 tifm_core snd_seq snd_seq_device snd_pcm cfg80211 lpc_ich toshiba_acpi industrialio toshiba_bluetooth snd_timer sparse_keymap snd rfkill shpchp wmi soundcore acpi_cpufreq tpm_tis tpm
> kernel: CPU: 1 PID: 1446 Comm: gnome-shell Tainted: G W 4.8.15-300.fc25.x86_64 #1
> kernel: Hardware name: TOSHIBA Satellite A205/ISKAA, BIOS V2.50 06/11/2008
> kernel: 0000000000000286 00000000e099529e ffff8c6339f73918 ffffffff8a3e5e1d
> kernel: ffff8c6339f73968 0000000000000000 ffff8c6339f73958 ffffffff8a0a0e8b
> kernel: 000004c800000000 ffff8c62f5f00000 0000000000000001 0000000000000000
> kernel: Call Trace:
> kernel: [<ffffffff8a3e5e1d>] dump_stack+0x63/0x86
> kernel: [<ffffffff8a0a0e8b>] __warn+0xcb/0xf0
> kernel: [<ffffffff8a0a0f0f>] warn_slowpath_fmt+0x5f/0x80
> kernel: [<ffffffff8a0e4b13>] ? finish_wait+0x53/0x70
> kernel: [<ffffffffc03f0c66>] drm_wait_one_vblank+0x1b6/0x1c0 [drm]
> kernel: [<ffffffff8a0e4d70>] ? prepare_to_wait_event+0xf0/0xf0
> kernel: [<ffffffffc058f182>] intel_get_load_detect_pipe+0x662/0x680 [i915]
> kernel: [<ffffffffc05cc90f>] intel_tv_detect+0x13f/0x5c0 [i915]
> kernel: [<ffffffffc045f04b>] drm_helper_probe_single_connector_modes+0x27b/0x520 [drm_kms_helper]
> kernel: [<ffffffff8a8011b2>] ? mutex_lock+0x12/0x30
> kernel: [<ffffffffc03fbf02>] drm_mode_getconnector+0x372/0x3c0 [drm]
> kernel: [<ffffffffc03eefa0>] drm_ioctl+0x200/0x4f0 [drm]
> kernel: [<ffffffffc03fbb90>] ? drm_mode_getcrtc+0x140/0x140 [drm]
> kernel: [<ffffffff8a264cc3>] do_vfs_ioctl+0xa3/0x5f0
> kernel: [<ffffffff8a265289>] SyS_ioctl+0x79/0x90
> kernel: [<ffffffff8a803b72>] entry_SYSCALL_64_fastpath+0x1a/0xa4
> kernel: ---[ end trace cad3eca6b2f7c043 ]---
> kernel: ------------[ cut here ]------------