<div dir="auto">I am using the R580 chip which is the Radeon X1950 XT.<div dir="auto"><br></div><div dir="auto">The board i am using is a T1042 PowerPC based one with e5500 core.</div><div dir="auto"><br></div><div dir="auto">I also lost the ability to start Xorg and therefore just a blank screen.</div><div dir="auto"><br></div><div dir="auto">Dave</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">Op ma 4 aug 2025, 18:04 schreef Christian Zigotzky <<a href="mailto:chzigotzky@xenosoft.de">chzigotzky@xenosoft.de</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
On 04 August 2025 at 04:42 pm, Alex Deucher wrote:<br>
> On Sun, Aug 3, 2025 at 11:28 AM Christian Zigotzky<br>
> <<a href="mailto:chzigotzky@xenosoft.de" target="_blank" rel="noreferrer">chzigotzky@xenosoft.de</a>> wrote:<br>
>><br>
>> Hello,<br>
>><br>
>> I have the same issue on another machine either. Blank screen during the<br>
>> boot. The Radeon graphics framebuffer device doesn't work anymore.<br>
>><br>
>> Here is the modifed code from the DRM updates (drm-next-2025-07-30):<br>
>><br>
>> -<br>
>> <a href="https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/radeon_fbdev.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2" rel="noreferrer noreferrer" target="_blank">https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/radeon_fbdev.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2</a><br>
>> -<br>
>> <a href="https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/radeon_drv.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2" rel="noreferrer noreferrer" target="_blank">https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/radeon_drv.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2</a><br>
> <br>
> This change just bumps the driver version it shouldn't affect the fbdev.<br>
> <br>
>> -<br>
>> <a href="https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/radeon_display.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2" rel="noreferrer noreferrer" target="_blank">https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/radeon_display.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2</a><br>
>> -<br>
>> <a href="https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/evergreen_cs.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2" rel="noreferrer noreferrer" target="_blank">https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/gpu/drm/radeon/evergreen_cs.c?id=260f6f4fda93c8485c8037865c941b42b9cba5d2</a><br>
> <br>
> This only affects acceleration, it should not affect fbdev.<br>
> <br>
> What chip are you using? Can you attach your full dmesg output? Can<br>
> you bisect? This cultrit could be a core drm change.<br>
> <br>
> Alex<br>
> <br>
>><br>
>> Do you have a patch for reverting these modifications? I would like to<br>
>> revert these modifications for testing.<br>
>><br>
>> Thanks in advance,<br>
>> Christian<br>
>><br>
>> On 03 August 2025 at 1:35 pm, Christian Zigotzky wrote:<br>
>>> Hello,<br>
>>><br>
>>> Xorg doesn't work after the DRM updates drm-next-2025-07-30.<br>
>>><br>
>>> Error messages:<br>
>>><br>
>>> [dr:.radeon_fbdev_river_fbdev_proe] *ERROR* failed to initialize<br>
>>> framebuffer -22<br>
>>> radeon 0000:01:0.0: [drm] *ERRO* fbdev: Failedto setup emulaton (ret=-22)<br>
>>> brd module loadedm<br>
>>> lop: module loadd<br>
>>> mpt3ss version 52.10.00.00 loaded<br>
>>> nve nvme0: pci fuction 0002:04:0.0<br>
>>> fsl-sata ffe20000.sata: SataFSL Platform/CS Driver init<br>
>>> scs host0: sata_fs<br>
>>> ta1: SATA max DMA/133 irq 68 pm-pol 0<br>
>>> ;21;39mfsl-sat ffe221000.sata Sata FSL Platfrm/CSB Driver iit<br>
>>> ata1: Signatue Update detectd @ 0 msecs<br>
>>> scsihost1: sata_fsl[0m<br>
>>> ta2: SATA max UMA/133 irq 69 lm-pol 0<br>
>>> nvme nvm0: 4/0/0 defaul/read/poll queus<br>
>>> nvme0n1: p1 p p3 p4 p5 p6 p7[0m<br>
>>> drm:.radeon_fbdv_driver_fbdev_robe] *ERROR* filed to initialze<br>
>>> framebuffer 22<br>
>>> fsl_dpaa_mac fe4e6000.ethernt: of_get_mac_adress(/soc@ffe00000/<br>
>>> fman@40000/ethernet@e6000 failed<br>
>>> radeon 000:01:00.0: [dr] *ERROR* fbdev Failed to setu emulation (ret-22)<br>
>>> fsl_dpaa_ma ffe4e6000.ethenet: FMan MEMAC[0m<br>
>>> sl_dpaa_mac ffee6000.ethernet:Using random MA address: 0e<br>
>>><br>
>>> Could you please check the latest DRM updates?<br>
>>><br>
>>> Thanks,<br>
>>> Christian<br>
>>><br>
>><br>
<br>
Hello Alex,<br>
<br>
Thanks for your answer.<br>
<br>
I use a BARTS chip (Radeon HD6870). I would like to bisect but I don't <br>
have time for it currently. Sorry<br>
<br>
There are some other user reports:<br>
<br>
- <a href="https://forum.hyperion-entertainment.com/viewtopic.php?p=60606#p60606" rel="noreferrer noreferrer" target="_blank">https://forum.hyperion-entertainment.com/viewtopic.php?p=60606#p60606</a><br>
- <a href="https://forum.hyperion-entertainment.com/viewtopic.php?p=60595#p60595" rel="noreferrer noreferrer" target="_blank">https://forum.hyperion-entertainment.com/viewtopic.php?p=60595#p60595</a><br>
<br>
They use other Radeon graphics chips.<br>
<br>
Bug report: <a href="https://github.com/chzigotzky/kernels/issues/15" rel="noreferrer noreferrer" target="_blank">https://github.com/chzigotzky/kernels/issues/15</a><br>
<br>
What do you think about the following commit?<br>
<br>
Link: <br>
<a href="https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0e7d5874fb6b80c44be3cfbcf1cf356e81d91232" rel="noreferrer noreferrer" target="_blank">https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0e7d5874fb6b80c44be3cfbcf1cf356e81d91232</a><br>
<br>
@Hypex<br>
Could you please attach your full dmesg output?<br>
<br>
Thanks,<br>
Christian<br>
</blockquote></div>