"Linux versions 5.1 and 5.2 would also not work with this parameter
set."
well i have been running 5.1.10 successfully Now in windows, and
next time i boot into Linux i will be using 5.1.20... Let´s see what
happens then...
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The "[drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables amdgpu kernel
modesetting." was also reported in bug 1837945 where kernel / boot
parameter "amdgpu.dc=0" worked around an otherwise boot to black screen.
There, however, Linux versions 5.1 and 5.2 would also not work with this
parameter set.
** Tags added: needs-reverse-bisect
** Tags removed: kernel-bug-exists-upstream needs-bisect
** Tags added: kernel-fixed-upstream-5.1
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https://bugs.launchpad.net/bugs/1818580
Title:
Hello,
latest kernel 5.1.0 (lowlatency) from
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.1/
Seems to have solved the issue, as i have started Ubuntu with no
problems with amdgpu module loaded.
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elhoir:
>"i contacted with a guy with an AMD RX 470 GPU and he says irs working
fine on his system"
Besides mundane root causes (card hardware jacked and needs RMA), there
are other reason why your results differ from others (not all RX 470
cards are equivalent in every way due to OEM
cmdlive==cmdline
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Title:
[Medion MS-7616] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables
amdgpu kernel modesetting.
To manage
i contacted with a guy with an AMD RX 470 GPU and he says irs working
fine on his system
i have just tested 18.10 and a daily 19.04 livecd builds with no
success. Also i have disabled ACPI in both BIOS and kernel cmdlive
(acpi=off) with no success
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elhoir, if its actually true you personally were able to boot using the
RX470 without WORKAROUNDs, its possible that either when you are
installing older kernels you aren't installing the correct packages, or
you were mistaken and it only booted either with a WORKAROUND or when a
different
btw, i have checked that kernel is not completely halted. R-E-I-S-U-B
key sequence still works for rebooting system.
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Title:
[Medion MS-7616]
i also tested previous linux-firmware package (from Bionic, 1.173.3),
and previous xserver-xorg-video-amdgpu 8.1.0 package
All of them fail.
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@Christopher,
i have even tested 4.11(.12) kernel, which i have seen reported as the
1st kernel in which RX470 works. And it doesnt in my hardware
Its really annoying
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elhoir:
1)
>"but i cannot find a working scenario to start with"
To clarify, you stepped through all the Ubuntu kernel versions from
4.19.0-7.8 to 5.0.0-7.8 and the problem is still reproducible?
If so, stepping through versions older than 4.19.0-7.8 until a working
state is found would be
@Christopher,
I agree, but i cannot find a working scenario to start with
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Title:
[Medion MS-7616] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON
elhoir, while you are welcome to wait for whenever a maintainer may
respond, given this issue has been reported a regression, it is known
that it helps developers expedite a fix if the offending commit(s) are
identified via bisect.
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Please just wait for AMDGPU maintainer's response. We can't do much now.
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Title:
[Medion MS-7616] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON
for 1) No change, even with only "ro" parameter
i'm getting annoyed and frustrated
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Title:
[Medion MS-7616] [drm:amdgpu_init [amdgpu]]
elhoir:
1)
Please ensure you are not using non-default kernel parameters. As per most
recent dmesg remove:
acpi_osi=Linux modprobe.blacklist=amdgpu crashkernel=384M-:128M
crashkernel=384M-2G:128M,2G-:256M crashkernel=512M-:192M crashkernel=512M-:192M
crashkernel=512M-:192M
2)
Keep testing
@Christopher,
i`m afraid kernel 4.19.0-7.8 does NOT work.
Here is the complete mesg output for that kernel
** Attachment added: "complete-dmesg-linux-4.19.0-7-lowlatency.txt"
mesg==dmesg
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Title:
[Medion MS-7616] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables
amdgpu kernel modesetting.
To manage notifications
ok, i saw it, 4.19.0-7.8 corresponds to 4.19.5 mainline
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Title:
[Medion MS-7616] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables
amdgpu
@christopher, are you sure 4.19.0-7.8 works? how could i test it?
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Title:
[Medion MS-7616] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables
this will take time for me... im really noob and i have never bisected
anything, not to say a kernel xD
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Title:
[Medion MS-7616]
elhoir, the next step is to fully commit bisect from Ubuntu kernel
4.19.0-7.8 to Ubuntu kernel 5.0.0-7.8. This will allow for a direct
review of the offending commit(s) for either reverting, or further
improvements. Could you please do this following
https://wiki.ubuntu.com/Kernel/KernelBisection
this is the complete uncut dmesg output right after "sudo modprobe
amdgpu"
** Attachment added: "complete-dmesg-after-modprobe-amdgpu.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1818580/+attachment/5244363/+files/complete-dmesg-after-modprobe-amdgpu.txt
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@Christopher:
"However, while using Dingo after a kernel update, Dingo stopped booting
without a WORKAROUND?"
Yes, thatś right
"which kernel update specifically?"
Can not say. I have tested 4.18 and 4.20, both fail.
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** Description changed:
I cannot boot PC normally, i must use recovery mode.
WORKAROUND: Use kernel parameter:
nomodeset
+ OR:
+ modprobe.blacklist=amdgpu
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: xserver-xorg-video-amdgpu 18.1.99+git20190207-1
@Kai-Heng Feng (kaihengfeng)
done. https://bugs.freedesktop.org/show_bug.cgi?id=109924
** Bug watch added: freedesktop.org Bugzilla #109924
https://bugs.freedesktop.org/show_bug.cgi?id=109924
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Log in #20 is really useful.
Please file an upstream bug at https://bugs.freedesktop.org/
Product: DRI
Component: DRM/AMDgpu
And attach the log in #20. Thanks!
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elhoir:
1)
>"yes, its a copy paste of crash part of dmesg, not entire output."
Then attach a full dmesg as previously advised.
2)
>"GPU (RX 470) is quite new. I tested Ubuntu Cosmic and Ubuntu Dingo."
To confirm, using only the RX470, it worked fine in Cosmic and Dingo.
However, while using
1) yes, its a copy paste of crash part of dmesg, not entire output.
2) well i cant test it, as its the 1st time im using amdgpu module, asi said.
Previously i only used radeinsi and nouveau modules, my GPU (RX 470) is quite
new.
I tested Ubuntu Cosmic and Ubuntu Dingo.
And no, none did require
elhoir:
1)
Regarding the dmesg posted in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1818580/comments/20 did
you cut/snip it? Please ensure all logs are attached in their entirety (no
cuts, snips, etc.).
2)
To confirm a regression, regarding only the current AMD graphics card
yes, system is totally messed up locally, still usable via SSH through
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Title:
[Medion MS-7616] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON
iḿ getting this logs in dmesg, maybe after trying to load amgpu with
"sudo modprobe amdgpu"?
** Attachment added: "amdgpu-at-dmesg"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1818580/+attachment/5244194/+files/amdgpu-at-dmesg
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** Attachment added: "video of (bad) booting"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1818580/+attachment/5244193/+files/VID_20190306_232129.3gp
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okay, the "modprobe.blacklist=amdgpu" parameter did work.
Now at SSH:
elhoir@elhoir-desktop:~$ sudo modprobe amdgpu
[sudo] contraseña para elhoir:
elhoir@elhoir-desktop:~$
No errors.
elhoir@elhoir-desktop:~$ lsmod
Module Size Used by
amdgpu 3567616 2
chash
Ok, then use kernel parameter "blacklist=amdgpu
modprobe.blacklist=amdgpu".
SSH to the system, then run `sudo modprobe amdgpu`.
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Title:
[Medion
elhoir:
Without evidence (screenshots, recording, logs, etc.) developers cannot
root cause, and fix your issue. Hence, when will you be posting the
video you said will be captured as per your comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1818580/comments/13
?
** Tags added:
well, this is surprising and unexpected
MY boot cmdline is:
linux 5.0.0-7-lowlatency ro blacklist=amdgpu
And even with that i can not boot normally!
The worst part is that network is not up yet so i cant use SSH :/
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Please add kernel parameter "blacklist=amdgpu", and boot with mainline kernel.
Once you can use shell, run `modprobe amdgpu` to see if any trace/panic can be
seen. You may want to use SSH to do this.
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1) only latest, Disco Dingo
2) yes, i have few nvidia/ati/amd cards here, so i swapped them
3) i did not record any video, will do it next time i boot into Linux
4) ok, will try
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elhoir:
1)
Regarding your comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1818580/comments/9 :
>" No, never, but i never used amdgpu driver before"
I'm afraid this didn't answer my question. Which release precisely did
you have to start using nomodeset to boot?
2)
Regarding your
@Christopher,
Sorry but i have no way to get those logs. Boot gets frozen, i have to dirty
shutdown via power button. And now in Windows the Ext4 filesystem is unclean so
i cant mount it to get logs from /var/log
any idea?
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Christopher:
1) No, never, but i never used amdgpu driver before, only radeonsi or
nouveau. I remember some kernel working fine some days ago but i cant
remember which one...
2) will do it asap, im not at home now...
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probably an off-topic question... what is VGACON ???
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Title:
[Medion MS-7616] [drm:amdgpu_init [amdgpu]] *ERROR* VGACON disables
amdgpu kernel
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