I can confirm the bug exists on the Ubuntu kernel 5.15.0-27 and by
adding intel_iommu=off to /etc/default/grub solves the issue.
Regards, Mick
On 09/05/2022 02:52, Daniel van Vugt wrote:
> Please try using the original Ubuntu kernel again (5.15.0-27), verify
> the bug occurs, and then try comm
Using kernel 5.18.0-051800rc5drmtip20220504-generic
That works ok.
On 06/05/2022 09:07, Daniel van Vugt wrote:
> Mícheál, please try adding kernel parameter:
>
>intel_iommu=off
>
> to /etc/default/grub (in GRUB_CMDLINE_LINUX_DEFAULT) and then run:
>
>sudo upgrade-grub
>
> and reboot.
>
I can confim the bug is in the latest drm-tip kernel
Regards,
Mick
On 04/05/2022 06:08, Daniel van Vugt wrote:
> Nice work, thanks!
>
> The only remaining thing to do is to try the latest drm-tip kernel:
>
>https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/current/amd64/
>
> That wil
Ok, I've installed many kernels and can confirm 5.14.20-051420-generic
works and 5.14.21-051421 produces the bug. I hope this helps.
Regards,
Mick
On 03/05/2022 09:43, Daniel van Vugt wrote:
> Next would be to try 5.14.10, and then go up or down depending on the
> result.
>
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Works 5.14/ but not 5.15.0-25
On 03/05/2022 09:09, Daniel van Vugt wrote:
> Great. Next would be to try 5.14/ and 5.13.9/ (because it is halfway
> between 5.13 and 5.14)
>
> ** No longer affects: mesa (Ubuntu)
>
> ** Tags added: regression-release
>
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No problem with kernel: 5.13.0-051300-generic
On 03/05/2022 08:21, Daniel van Vugt wrote:
> Yes it seems to be specific to 'radeon' which is both a kernel driver
> and a Mesa driver.
>
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Yes but I think it points to the graphics driver maybe
On 03/05/2022 07:26, Daniel van Vugt wrote:
> Not solved then. Recovery mode is a workaround but not a fix.
>
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If I boot into recovery mode then click normal boot the desktop appears,
every time. Kernel 5.17.5-051705-generic
If I just do a normal boot the desktop appears maybe 1 in out of every
20 reboots, same kernel.
Regards,
Mick
On 03/05/2022 06:30, Daniel van Vugt wrote:
> Great to hear.
>
> Add
As expected a reboot and the bug is back :(
On 03/05/2022 06:30, Daniel van Vugt wrote:
> Great to hear.
>
> Additional logs certainly won't help if it's working now. But if you
> have the patience then finding out what version number exactly fixed it
> would help. Or what kernel version was the
uname -r
5.17.5-051705-generic
On 03/05/2022 06:30, Daniel van Vugt wrote:
> Great to hear.
>
> Additional logs certainly won't help if it's working now. But if you
> have the patience then finding out what version number exactly fixed it
> would help. Or what kernel version was the last to have
Ubuntu has been working fine for years.
I'm now using kernel 5.17.5-051705-generic and it works, but only
sometimes. If I reboot the problem will return. It's working properly
now, is there a command or log file I can generate to see if anything is
different?
On 03/05/2022 05:07, Daniel van V
On 03/05/2022 04:41, Daniel van Vugt wrote:
> Can you provide a photo of the problem?
>
** Attachment added: "jUfbEejPXjwrx5FL.png"
https://bugs.launchpad.net/bugs/1971146/+attachment/5586070/+files/jUfbEejPXjwrx5FL.png
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