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Re: Bug#1035014: installation-reports: Graphical installer has Xorg "no screens found" error



Control: tag -1 patch

Hi Keith and X team,

and thanks for your report.

Keith Toh <ktprograms@gmail.com> (2023-04-27):
> Image version: http://cdimage.debian.org/cdimage/daily-builds/daily/arch-latest/arm64/iso-cd/debian-testing-arm64-netinst.iso (2023-04-24 23:09)

For the avoidance of doubt: same story with amd64.

> Machine: UTM QEMU VM
> 
> When booting the installer in Graphical install mode, Xorg repeatedly
> errors saying "no screens found". Based on the Xorg log, it is failing
> to load the modesetting driver, as the file
> /usr/lib/xorg/modules/drivers/modesetting_drv.so appears to have been
> dropped from xerver-xorg-core-udeb between bullseye and bookworm.
> 
> >From kibi on #debian-boot (https://paste.debian.net/1278647/):
> xserver-xorg-core-udeb_1.20.11-1+deb11u3_amd64.udeb YES
> xserver-xorg-core-udeb_1.20.11-1+deb11u4_amd64.udeb YES
> xserver-xorg-core-udeb_1.20.11-1+deb11u5_amd64.udeb YES
> xserver-xorg-core-udeb_1.20.11-1+deb11u6_amd64.udeb YES
> xserver-xorg-core-udeb_1.20.13-1_amd64.udeb YES
> xserver-xorg-core-udeb_1.20.13-2_amd64.udeb YES
> xserver-xorg-core-udeb_1.20.13-3_amd64.udeb YES
> xserver-xorg-core-udeb_1.20.14-1_amd64.udeb YES
> xserver-xorg-core-udeb_21.1.1-1_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.1-2_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.3-1_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.3-2+b1_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.3-2_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.4-1_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.4-2_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.4-3_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.5-1_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.6-1_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.7-1_amd64.udeb NO
> xserver-xorg-core-udeb_21.1.7-2_amd64.udeb NO

Tracked down to 9c81b8f5b5 upstream:
  https://cgit.freedesktop.org/xorg/xserver/commit/?id=9c81b8f5b5

Flipping the switch and wrapping it up in a netboot mini.iso
debian-installer build led to a successful test (with amd64) by Keith.
We'll try and confirm the same happens with arm64.

If you're happy with that approach, feel free to reassign to the udeb,
and check the udeb-modesetting branch in xorg-server:
  https://salsa.debian.org/xorg-team/xserver/xorg-server/-/commits/udeb-modesetting

I don't have access to VirtualBox right now, but we've had reports of
failures there as well, maybe that's the same kind of things.


Cheers,
-- 
Cyril Brulebois (kibi@debian.org)            <https://debamax.com/>
D-I release manager -- Release team member -- Freelance Consultant

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