[Bug 1944397] Re: HDMI does not display anything with Impish RPi desktop image

[Juerg Haefliger]

On Hirsute 5.11 the display comes up but the kernel is not happy:

$ sudo dmesg | grep -P 'firmware|WARN'
[    0.124340] raspberrypi-firmware soc:firmware: Attached to firmware from 2021-02-25T12:10:40, variant start
[    0.128359] raspberrypi-firmware soc:firmware: Firmware hash is 564e5f9b852b23a330b1764bcf0b2d022a20afd0
[   17.517350] raspberrypi-firmware soc:firmware: Request 0x00030066 returned status 0x80000001
[   17.530301] vc4-drm gpu: [drm] Couldn't stop firmware display driver: -22
[   17.674616] raspberrypi-firmware soc:firmware: Request 0x00030066 returned status 0x80000001
[   17.685979] vc4-drm gpu: [drm] Couldn't stop firmware display driver: -22
[   17.864574] raspberrypi-firmware soc:firmware: Request 0x00030066 returned status 0x80000001
[   17.873532] vc4-drm gpu: [drm] Couldn't stop firmware display driver: -22
[   20.031174] raspberrypi-firmware soc:firmware: Request 0x00030066 returned status 0x80000001
[   20.040515] vc4-drm gpu: [drm] Couldn't stop firmware display driver: -22
[   20.127052] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:445 vc4_hdmi_encoder_post_crtc_disable+0x390/0x49c [vc4]
[   20.493554] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:417 vc4_hdmi_read+0xd8/0x140 [vc4]
[   20.803013] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:445 vc4_hdmi_encoder_post_crtc_disable+0x388/0x49c [vc4]
[   21.113145] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:417 vc4_hdmi_read+0xd8/0x140 [vc4]
[   21.422741] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:445 vc4_hdmi_encoder_post_crtc_disable+0x380/0x49c [vc4]
[   21.731941] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:417 vc4_hdmi_read+0xd8/0x140 [vc4]
[   22.041559] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:445 vc4_hdmi_encoder_post_crtc_disable+0x424/0x49c [vc4]
[   22.351113] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:417 vc4_hdmi_read+0xd8/0x140 [vc4]
[   22.662902] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:445 vc4_hdmi_encoder_post_crtc_powerdown+0x178/0x1c0 [vc4]
[   22.978912] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:445 vc5_hdmi_phy_disable+0x198/0x220 [vc4]
[   23.300587] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:445 vc5_hdmi_phy_disable+0x190/0x220 [vc4]
[   23.619497] WARNING: CPU: 1 PID: 103 at drivers/gpu/drm/vc4/vc4_hdmi_regs.h:417 vc4_hdmi_read+0xd8/0x140 [vc4]


** Also affects: linux-firmware-raspi2 (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

** Also affects: linux-raspi (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

** Changed in: linux-raspi (Ubuntu Hirsute)
     Assignee: (unassigned) => Juerg Haefliger (juergh)

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https://bugs.launchpad.net/bugs/1944397

Title:
  HDMI does not display anything with Impish RPi desktop image

Status in linux-firmware-raspi2 package in Ubuntu:
  New
Status in linux-raspi package in Ubuntu:
  Fix Committed
Status in linux-firmware-raspi2 source package in Hirsute:
  New
Status in linux-raspi source package in Hirsute:
  New
Status in linux-firmware-raspi2 source package in Impish:
  New
Status in linux-raspi source package in Impish:
  Fix Committed

Bug description:
  Workaround
  ----------
  With media which you will boot off of change the line dtoverlay=vc4-kms-v3d to dtoverlay=vc4-fkms-v3d in /system-boot/config.txt

  Original Description
  --------------------
  Have a HDMI display w/o audio hooked up to this RPI4B.

  With the latest kernel update the screen does not turn on due to this.

  ProblemType: BugDistroRelease: Ubuntu 21.10
  Package: linux-image-5.13.0-1007-raspi 5.13.0-1007.8
  ProcVersionSignature: Ubuntu 5.13.0-1007.8-raspi 5.13.13
  Uname: Linux 5.13.0-1007-raspi aarch64
  ApportVersion: 2.20.11-0ubuntu69
  Architecture: arm64
  CasperMD5CheckResult: unknown
  Date: Mon Sep 20 20:56:14 2021
  ImageMediaBuild: 20210421
  ProcEnviron:
   SHELL=/bin/bash
   LANG=en_US.UTF-8
   TERM=vt100
   XDG_RUNTIME_DIR=<set>
   PATH=(custom, user)SourcePackage: linux-raspi
  UpgradeStatus: Upgraded to impish on 2021-08-17 (34 days ago)

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