LinuxQuestions.org - X won't start after fresh Debian install

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- Linux - Newbie (https://www.linuxquestions.org/questions/linux-newbie-8/)

- - X won't start after fresh Debian install (https://www.linuxquestions.org/questions/linux-newbie-8/x-wont-start-after-fresh-debian-install-4175684902/)

sgosnell

11-09-2020 10:15 AM

You can use either Testing or Bullseye in sources.list. If you use Bullseye, you will move to Stable when Bullseye replaces Buster as Stable. If you use Testing, you will stay on Testing when Bullseye becomes Stable, switching to whatever the next release name is. It's a choice you make, and either is fine, depending on your preferences.

Allen_B

11-09-2020 02:27 PM

You learn something every day :)

So can I set my sources to Buster so I can get working versions of these programs? This would hopefully prevent my wanting to reinstall stable.

Debian also seems to suggest this...

Quote:

Originally Posted by Debian testing release information

Please note that security updates for testing distribution are not yet managed by the security team. Hence, testing does not get security updates in a timely manner. You are encouraged to switch your sources.list entries from testing to buster for the time being if you need security support

Allen_B

11-09-2020 02:50 PM

1 Attachment(s)

Again commenting on my own question, it seems it can be done but not simply.

Timothy Miller

11-09-2020 02:52 PM

Quote:

Originally Posted by Allen_B (Post 6183746)

Again commenting on my own question, it seems it can be done but not simply.

Which is the reason for backports. The apps are recompiled to run on Stable from Testing, so you don't run into those issues.

sgosnell

11-09-2020 05:31 PM

I would strongly suggest adding backports instead of switching to Testing. Testing breaks, sometimes for a week or more. IMO Unstable is better for most users than Testing. I run Sid (Unstable) on most of my machines, but I have more than one available, and one runs Stable, just in case. If Sid breaks, it's only for a day or two, and I can live with that. The thing you should never do is to mix multiple versions on one computer, other than backports. Do not have both Stable and Testing in your sources.list. Run one or the other, but not both. You will have borkage sooner or later, and probably sooner. Pick one and stick with it. In your situation I would use Stable with backports, and add only the backported packages that i really needed. Mostly you only need the kernel and associated firmware.

Allen_B

11-09-2020 11:06 PM

1 Attachment(s)

I now have stable and I have 5.8.0 and X.

I have software rendering. I can't see a reason in the boot messages.

sgosnell

11-10-2020 09:07 AM

You need the mesa drivers from backports. Specifically, the i915 driver.
xserver-xorg-video-intel and firmware-misc-nonfree.

Allen_B

11-10-2020 01:27 PM

Thanks, I have those already.

Code:

sudo apt install -t buster-backports firmware-misc-nonfree

Reading package lists... Done

Building dependency tree      

Reading state information... Done

firmware-misc-nonfree is already the newest version (20200918-1~bpo10+1).

firmware-misc-nonfree set to manually installed.

Code:

sudo apt install -t buster-backports xserver-xorg-video-intel

Reading package lists... Done

Building dependency tree      

Reading state information... Done

xserver-xorg-video-intel is already the newest version (2:2.99.917+git20180925-2).

xserver-xorg-video-intel set to manually installed.

sgosnell

11-10-2020 03:10 PM

Do you have mesa-va-drivers installed? That's what gives the hardware acceleration. I overlooked that earlier.

Allen_B

11-10-2020 04:40 PM

Yes, I have mesa-va-drivers.

Code:

lspci | grep VGA

00:02.0 VGA compatible controller: Intel Corporation Device 9bc8 (rev 03)

Code:

find /dev -group video

/dev/fb0

/dev/dri/card0

Code:

glxinfo | grep -i vendor

server glx vendor string: SGI

client glx vendor string: Mesa Project and SGI

    Vendor: VMware, Inc. (0xffffffff)

OpenGL vendor string: VMware, Inc.

Code:

lsmod | grep "kms\|drm"

drm_kms_helper        258048  1 i915

cec                    49152  2 drm_kms_helper,i915

drm                  614400  4 drm_kms_helper,i915

Code:

cat /proc/cmdline

BOOT_IMAGE=/boot/vmlinuz-5.8.0-0.bpo.2-amd64

Code:

find /etc/modprobe.d/

/etc/modprobe.d/

/etc/modprobe.d/intel-microcode-blacklist.conf

/etc/modprobe.d/amd64-microcode-blacklist.conf

Code:

glxinfo | grep -i "vendor\|rendering"

direct rendering: Yes

server glx vendor string: SGI

client glx vendor string: Mesa Project and SGI

    Vendor: VMware, Inc. (0xffffffff)

OpenGL vendor string: VMware, Inc.

Code:

grep LoadModule /var/log/Xorg.0.log

[    2.673] (II) LoadModule: "glx"

[    2.677] (II) LoadModule: "modesetting"

[    2.678] (II) LoadModule: "fbdev"

[    2.678] (II) LoadModule: "vesa"

[    2.709] (II) LoadModule: "fbdevhw"

[    2.710] (II) LoadModule: "glamoregl"

[    2.860] (II) LoadModule: "fb"

[    2.861] (II) LoadModule: "shadow"

[    3.124] (II) LoadModule: "libinput"

sgosnell

11-10-2020 07:19 PM

Well, I'm out of ideas. I've never used Cinnamon, so I have no advice for that. I'm not sure why you're getting that error message,

Are you running this in a VM? I'm not sure it's possible to get hardware rendering in one. I don't use VMware. Your glxinfo output says the vendor is VMware, and it should be Intel.

Allen_B

11-10-2020 07:31 PM

No VM, host or client. I guess I'll try another desktop environment. Thanks all the same ;)

Say I do, and it has this problem but doesn't tell me. I'd like to be able to confirm it other than moving a window around and looking for tearing?

sgosnell

11-10-2020 07:36 PM

I don't think it really matters, as long as it works. Your glxinfo output says it's using direct rendering. If you're not doing serious gaming or video editing, I doubt you would see any difference either way. But you probably should look further, because I'm far from an expert on computer video.

EdGr	11-10-2020 09:13 PM

Quote:

Originally Posted by Allen_B (Post 6184218)

Say I do, and it has this problem but doesn't tell me. I'd like to be able to confirm it other than moving a window around and looking for tearing?

You can use X without hardware GPU acceleration, but the experience is not optimal. You want hardware fills and copies.

As I understand, Glamor acceleration maps 2D operations onto OpenGL. It uses Mesa and LLVM.

I would have gone with the working bullseye installation.
Ed

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