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Mon, 4 Aug 2025 18:03:04 +0200 (CEST) Message-ID: <48b61c14-f83d-4e4a-b5d3-857099058eda@xenosoft.de> Date: Mon, 4 Aug 2025 18:05:44 +0200 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: radeon_fbdev_river_fbdev: failed to initialize framebuffer and setup emulation To: Alex Deucher Cc: ville.syrjala@linux.intel.com, Jeff Johnson , mad skateman , Darren Stevens , hypexed@yahoo.com.au, linuxppc-dev , Christian Zigotzky , =?UTF-8?Q?Christian_K=C3=B6nig?= , Hans de Goede , Wu Hoi Pok , amd-gfx@lists.freedesktop.org, alexander.deucher@amd.com, "R.T.Dickinson" References: <87F47F04-EBAC-48D6-AD0A-4BBE39DF43CE@xenosoft.de> <1115cce7-cfdc-4c5b-b017-69cd32425650@xenosoft.de> <6ba8d730-52f9-421f-8d8a-887545f0ceac@xenosoft.de> <2cc83897-427d-47f4-b6a3-8db9682972cd@xenosoft.de> From: Christian Zigotzky In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 04 August 2025 at 04:42 pm, Alex Deucher wrote: > On Sun, Aug 3, 2025 at 11:28 AM Christian Zigotzky > wrote: >> >> Hello, >> >> I have the same issue on another machine either. Blank screen during the >> boot. The Radeon graphics framebuffer device doesn't work anymore. >> >> Here is the modifed code from the DRM updates (drm-next-2025-07-30): >> >> - >> https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/radeon_fbdev.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2 >> - >> https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/radeon_drv.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2 > > This change just bumps the driver version it shouldn't affect the fbdev. > >> - >> https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/radeon_display.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2 >> - >> https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/evergreen_cs.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2 > > This only affects acceleration, it should not affect fbdev. > > What chip are you using? Can you attach your full dmesg output? Can > you bisect? This cultrit could be a core drm change. > > Alex > >> >> Do you have a patch for reverting these modifications? I would like to >> revert these modifications for testing. >> >> Thanks in advance, >> Christian >> >> On 03 August 2025 at 1:35 pm, Christian Zigotzky wrote: >>> Hello, >>> >>> Xorg doesn't work after the DRM updates drm-next-2025-07-30. >>> >>> Error messages: >>> >>> [dr:.radeon_fbdev_river_fbdev_proe] *ERROR* failed to initialize >>> framebuffer -22 >>> radeon 0000:01:0.0: [drm] *ERRO* fbdev: Failedto setup emulaton (ret=-22) >>> brd module loadedm >>> lop: module loadd >>> mpt3ss version 52.10.00.00 loaded >>> nve nvme0: pci fuction 0002:04:0.0 >>> fsl-sata ffe20000.sata: SataFSL Platform/CS Driver init >>> scs host0: sata_fs >>> ta1: SATA max DMA/133 irq 68 pm-pol 0 >>> ;21;39mfsl-sat ffe221000.sata Sata FSL Platfrm/CSB Driver iit >>> ata1: Signatue Update detectd @ 0 msecs >>> scsihost1: sata_fsl[0m >>> ta2: SATA max UMA/133 irq 69 lm-pol 0 >>> nvme nvm0: 4/0/0 defaul/read/poll queus >>> nvme0n1: p1 p p3 p4 p5 p6 p7[0m >>> drm:.radeon_fbdv_driver_fbdev_robe] *ERROR* filed to initialze >>> framebuffer 22 >>> fsl_dpaa_mac fe4e6000.ethernt: of_get_mac_adress(/soc@ffe00000/ >>> fman@40000/ethernet@e6000 failed >>> radeon 000:01:00.0: [dr] *ERROR* fbdev Failed to setu emulation (ret-22) >>> fsl_dpaa_ma ffe4e6000.ethenet: FMan MEMAC[0m >>> sl_dpaa_mac ffee6000.ethernet:Using random MA address: 0e >>> >>> Could you please check the latest DRM updates? >>> >>> Thanks, >>> Christian >>> >> Hello Alex, Thanks for your answer. I use a BARTS chip (Radeon HD6870). I would like to bisect but I don't have time for it currently. Sorry There are some other user reports: - https://forum.hyperion-entertainment.com/viewtopic.php?p=60606#p60606 - https://forum.hyperion-entertainment.com/viewtopic.php?p=60595#p60595 They use other Radeon graphics chips. Bug report: https://github.com/chzigotzky/kernels/issues/15 What do you think about the following commit? Link: https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0e7d5874fb6b80c44be3cfbcf1cf356e81d91232 @Hypex Could you please attach your full dmesg output? Thanks, Christian