[Ubuntu-x-swat] [Bug 1920067] Re: Somehow today's Hirsute updates have broken evdi with Xorg even when I boot with the 5.10 kernel

2021-03-18 Thread Daniel van Vugt
I should also note that kernel 5.10 no longer exists in any version of
Ubuntu, so "Won't Fix" is probably accurate if the kernel is the factor
here.

Instead we should probably focus on bug 1920059 only.

** Tags added: regression-release

** Summary changed:

- Somehow today's Hirsute updates have broken evdi with Xorg even when I boot 
with the 5.10 kernel
+ Xorg with EVDI can't start with Mesa 21.0

** Changed in: mesa (Ubuntu)
   Importance: Undecided => High

** Changed in: xorg-server (Ubuntu)
   Importance: Undecided => High

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Title:
  Xorg with EVDI can't start with Mesa 21.0

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[Ubuntu-x-swat] [Bug 1920067] Re: Somehow today's Hirsute updates have broken evdi with Xorg even when I boot with the 5.10 kernel

2021-03-18 Thread Jonathan Kamens
** Also affects: mesa (Ubuntu)
   Importance: Undecided
   Status: New

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Title:
  Somehow today's Hirsute updates have broken evdi with Xorg even when I
  boot with the 5.10 kernel

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[Ubuntu-x-swat] [Bug 1920067] Re: Somehow today's Hirsute updates have broken evdi with Xorg even when I boot with the 5.10 kernel

2021-03-18 Thread Daniel van Vugt
When drmSetMaster fails it generally means a display server (Xorg) is
trying to start while some other display server is already busy with the
graphics hardware (has not yet called drmDropMaster).

That "other" display server might be plymouthd if the login screen fails
to start. To test that theory you can try changing the kernel parameter
"splash" to "nosplash".

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Title:
  Somehow today's Hirsute updates have broken evdi with Xorg even when I
  boot with the 5.10 kernel

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[Ubuntu-x-swat] [Bug 1920067] Re: Somehow today's Hirsute updates have broken evdi with Xorg even when I boot with the 5.10 kernel

2021-03-18 Thread Jonathan Kamens
I debugged this further and discovered that one of the following updates
caused evdi with kernel 5.10 to start failing as described above:

2021-03-18 21:55:45 upgrade libegl-mesa0:amd64 20.3.4-1 21.0.0-1
2021-03-18 21:55:45 upgrade libgbm1:amd64 20.3.4-1 21.0.0-1
2021-03-18 21:55:45 upgrade libgl1-mesa-dri:i386 20.3.4-1 21.0.0-1
2021-03-18 21:55:46 upgrade libgl1-mesa-dri:amd64 20.3.4-1 21.0.0-1
2021-03-18 21:55:47 upgrade libglx-mesa0:i386 20.3.4-1 21.0.0-1
2021-03-18 21:55:48 upgrade libglx-mesa0:amd64 20.3.4-1 21.0.0-1
2021-03-18 21:55:48 upgrade libglapi-mesa:amd64 20.3.4-1 21.0.0-1
2021-03-18 21:55:48 upgrade libglapi-mesa:i386 20.3.4-1 21.0.0-1

When I downgraded all of the listed debs to the old version indicated
(20.3.4-1) and rebooted, evdi with kernel 5.10 started working again. So
I guess this is a mesa bug?

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Title:
  Somehow today's Hirsute updates have broken evdi with Xorg even when I
  boot with the 5.10 kernel

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[Ubuntu-x-swat] [Bug 1920067] Re: Somehow today's Hirsute updates have broken evdi with Xorg even when I boot with the 5.10 kernel

2021-03-18 Thread Daniel van Vugt
** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu)

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Title:
  Somehow today's Hirsute updates have broken evdi with Xorg even when I
  boot with the 5.10 kernel

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