> In order to boot F26 on a Raspberry Pi, it is necessary to
blacklist the
> vc4 module to avoid a kernel failure
> (
https://bugzilla.redhat.com/show_bug.cgi?id=1387733). This means the
Hopefully this is no longer the case. On the 20170416 nightly images[1] I
didn't need to blacklist on my problematic monitor (Haier 21").
It is still true (for me), using
Fedora-Workstation-armhfp-26-20170419.n.0-sda.raw.xz
Full log at:
http://ryniker.org/Fedora/arm/log_02
My monitor displays several hundred lines during boot before the failure,
which presumably occurs during the attempt to start a graphical
environment for first boot.
Apr 20 09:46:35 localhost kernel: ------------[ cut here ]------------
Apr 20 09:46:35 localhost kernel: WARNING: CPU: 0 PID: 34 at
drivers/gpu/drm/drm_atomic_helper.c:1122 drm_atomic_helper_wait_for_vblanks+0xdc/0x1e8
[drm_kms_helper]
Apr 20 09:46:35 localhost kernel: [CRTC:65] vblank wait timed out
Apr 20 09:46:35 localhost kernel: Modules linked in: xt_CHECKSUM ipt_MASQUERADE
nf_nat_masquerade_ipv4 fuse tun nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT
ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat
ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6
ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_conntrack_ipv4
nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c crc32_arm_ce iptable_mangle
iptable_raw iptable_security ebtable_filter ebtables ip6table_filter ip6_tables joydev
brcmfmac brcmutil cfg80211 rfkill vc4 snd_soc_core ac97_bus snd_pcm_dmaengine bcm2835_rng
bcm2835_wdt bcm2835_dma leds_gpio nfsd auth_rpcgss nfs_acl lockd grace hid_logitech_hidpp
hid_logitech_dj smsc95xx usbnet mii mmc_block snd_pcm snd_timer
Apr 20 09:46:35 localhost kernel: snd soundcore drm_kms_helper syscopyarea sysfillrect
sysimgblt fb_sys_fops drm dwc2 udc_core sdhci_iproc sdhci_pltfm sdhci bcm2835 i2c_bcm2835
mmc_core pwm_bcm2835 sunrpc scsi_transport_iscsi
Apr 20 09:46:35 localhost kernel: CPU: 0 PID: 34 Comm: kworker/0:1 Tainted: G W
4.11.0-0.rc6.git0.1.fc26.armv7hl #1
Apr 20 09:46:35 localhost kernel: Hardware name: Generic DT based system
Apr 20 09:46:35 localhost kernel: Workqueue: events vc4_seqno_cb_work [vc4]
Apr 20 09:46:35 localhost kernel: [<c0311700>] (unwind_backtrace) from
[<c030c430>] (show_stack+0x18/0x1c)
Apr 20 09:46:35 localhost kernel: [<c030c430>] (show_stack) from [<c0639384>]
(dump_stack+0x80/0xa0)
Apr 20 09:46:35 localhost kernel: [<c0639384>] (dump_stack) from [<c034c874>]
(__warn+0xe4/0x104)
Apr 20 09:46:35 localhost kernel: [<c034c874>] (__warn) from [<c034c8d0>]
(warn_slowpath_fmt+0x3c/0x4c)
Apr 20 09:46:35 localhost kernel: [<c034c8d0>] (warn_slowpath_fmt) from
[<bf2103f0>] (drm_atomic_helper_wait_for_vblanks+0xdc/0x1e8 [drm_kms_helper])
Apr 20 09:46:35 localhost kernel: [<bf2103f0>] (drm_atomic_helper_wait_for_vblanks
[drm_kms_helper]) from [<bf4137c8>] (vc4_atomic_complete_commit+0x5c/0xb4 [vc4])
Apr 20 09:46:35 localhost kernel: [<bf4137c8>] (vc4_atomic_complete_commit [vc4])
from [<c0364ef8>] (process_one_work+0x254/0x42c)
Apr 20 09:46:35 localhost kernel: [<c0364ef8>] (process_one_work) from
[<c036600c>] (worker_thread+0x2b8/0x434)
Apr 20 09:46:35 localhost kernel: [<c036600c>] (worker_thread) from
[<c036abdc>] (kthread+0x120/0x138)
Apr 20 09:46:35 localhost kernel: [<c036abdc>] (kthread) from [<c0307e58>]
(ret_from_fork+0x14/0x3c)
Apr 20 09:46:35 localhost kernel: ---[ end trace f56f6c0054d1c6b0 ]---