CUH-2108A Black screen

[ghost]

Setup:

• PS4 CUH-2108A (March 2018)
• 5.07
• 1080p monitor through HDMI (Samsung S22F350FHIXCI)
• 32 Gb USB 3.0 flash drive (2 partitions, 128 Mb FAT32 and rest to EXT2) in left port
• Keyboard and mouse (wireless, both to the same usb receiver) in right
• Eeply kernel
• A lot of different builds of initramfs
• A lot of different builds of payload

Display settings:

• Resolution: 1080p
• TV Size: Automatic
• RGB Range: Limited
• HDR: Off
• Deep Color Output: Off

Result:

• Black screen OR No signal (defined by kernel/initramfs/payload build)
• Power led is blue

I tried:

• Ctrl + Alt + F1/F2/F3 -> Black screen
• initramfs with built-in reverse shell -> Black screen but reverse shell is ok

So i think linux boot successfully but just dummy or no video out

Because of reverse shell I can upload the output of any command you want

[valentinbreiz]

Did you try on an other TV?

[ghost]

Not TV but monitor I tried Philips 196VL (1366x768, HDMI-DVI adapter) with 720p payload Result: No signal

Unfortunately I don't have a TV for test

[ghost]

Setup:

• Manjaro Linux PS4 [v2]
• 1080p monitor

Today I suddenly noticed that my monitor showed me a picture for a second or two This happened about 15 minutes after booting

dmesg | grep drm:

[    0.000000] Command line: panic=0 clocksource=tsc radeon.dpm=0 console=tty0 console=ttyS0,115200n8 console=uart8250,mmio32,0xd0340000 video=HDMI-A-1:1920x1080-24@60 consoleblank=0 net.ifnames=0 drm.debug=0
[    0.000000] Kernel command line: panic=0 clocksource=tsc radeon.dpm=0 console=tty0 console=ttyS0,115200n8 console=uart8250,mmio32,0xd0340000 video=HDMI-A-1:1920x1080-24@60 consoleblank=0 net.ifnames=0 drm.debug=0
[    1.154430] [drm] Initialized
[    1.154508] [drm] radeon kernel modesetting enabled.
[    1.771278] [drm] initializing kernel modesetting (LIVERPOOL 0x1002:0x9923 0x1002:0x9923 0x00).
[    1.771296] [drm] register mmio base: 0xE4800000
[    1.771297] [drm] register mmio size: 262144
[    1.771302] [drm] doorbell mmio base: 0xE4000000
[    1.771303] [drm] doorbell mmio size: 8388608
[    1.771500] [drm] Detected VRAM RAM=1024M, BAR=64M
[    1.771501] [drm] RAM width 256bits DDR
[    1.771636] [drm] radeon: 1024M of VRAM memory ready
[    1.771637] [drm] radeon: 2048M of GTT memory ready.
[    1.771651] [drm] Loading liverpool Microcode
[    1.771854] [drm] GART: num cpu pages 524288, num gpu pages 524288
[    1.781042] [drm] PCIE GART of 2048M enabled (table at 0x0000000000040000).
[    1.781290] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.781291] [drm] Driver supports precise vblank timestamp query.
[    1.781399] [drm] radeon: irq initialized.
[    1.784215] [drm] ring test on 0 succeeded in 1 usecs
[    1.784296] [drm] ring test on 1 succeeded in 1 usecs
[    1.784310] [drm] ring test on 2 succeeded in 1 usecs
[    1.784501] [drm] ring test on 3 succeeded in 1 usecs
[    1.784504] [drm] ring test on 4 succeeded in 1 usecs
[    1.806808] [drm] ib test on ring 0 succeeded in 0 usecs
[    2.896916] [drm] Radeon Display Connectors
[    2.901143] [drm] Connector 0:
[    2.904214] [drm]   HDMI-A-1
[    2.907113] [drm]   HPD1
[    2.909661] [drm]   DDC: 0x6530 0x6530 0x6534 0x6534 0x6538 0x6538 0x653c 0x653c
[    2.917112] [drm]   Encoders:
[    2.920096] [drm]     DFP1: INTERNAL_UNIPHY
[    2.959830] [drm] fb mappable at 0xE0454000
[    2.964061] [drm] vram apper at 0xE0000000
[    2.968182] [drm] size 8294400
[    2.971253] [drm] fb depth is 24
[    2.974499] [drm]    pitch is 7680
[    2.978111] fbcon: radeondrmfb (fb0) is primary device
[    3.108845] [drm:radeon_dp_link_train] *ERROR* clock recovery tried 5 times
[    3.108854] [drm:radeon_dp_link_train] *ERROR* clock recovery failed
[    3.395420] radeon 0000:00:01.0: fb0: radeondrmfb frame buffer device
[    3.412901] [drm] Initialized radeon 2.48.0 20080528 for 0000:00:01.0 on minor 0
[  975.696046] [drm:radeon_dp_link_train] *ERROR* clock recovery tried 5 times
[  975.696051] [drm:radeon_dp_link_train] *ERROR* clock recovery failed

[tonyyoyo]

Resolved here.