Invalid command stream with Radeon driver

Do you have the same problem with other flavors of Ubuntu? What about
other versions of Lubuntu?

 status incomplete

i386 Ubuntu CD's are fewer.
I will try today from http://iso.qa.ubuntu.com/qatracker/milestones/390/builds
and report back on the other i386's I see there:

Xubuntu Desktop i386
Ubuntu Base i386

and make sure to try already released versions of Lubuntu rather than
just dailies.

On Lubuntu 18.04.1 i386 from lubuntu.me I have kernel panic on try and install, verified torrent, attached photo.
On Lubuntu 18.04 i386 from lubuntu.net it works very well.
On Xubuntu 18.10 i386 daily build 08-26 it works very well.

On Lubuntu 18.10 daily build 08-26 the bug is the same, attached photo with proof.

Forget the kernel panic - I dd the stick again and left it for some time in the USB port.
18.04.1 from lubuntu.me works very well.

Since you had problems with the verified torrent, perhaps you should
ensure that you have no such problems with with the daily build. Make
sure you have verified the download, make sure you `dd` it, and make
sure you run "Check disc for defects" at the boot menu.

If you still see the same problem, please attach a comparison of what
I should see. It's not obvious to me in that picture that something
is wrong. It might be because you are taking this with your phone. I
would advise using ScreenGrab to take an actual screenshot. For 18.04
and before on Lubuntu, that would be the `scrot` command line tool.

Also it would be helpful to include /var/log/syslog and
/var/log/Xorg.0.log. The results of `lsmod`, too. Please include one
for Xubuntu 18.10 and one for Lubuntu 18.10.

Downloading ISO's:
wget -c http://cdimage.ubuntu.com/lubuntu/daily-live/20180827/cosmic-desktop-i386.iso
mv cosmic-desktop-i386.iso cosmic-desktop-i386-lubuntu-0827.iso
wget -c http://cdimage.ubuntu.com/xubuntu/daily-live/20180827/cosmic-desktop-i386.iso
mv cosmic-desktop-i386.iso cosmic-desktop-i386-xubuntu-0827.iso
mkdir lubuntu
mkdir xubuntu

For Lubuntu 18.10 0827:
lsblk
umount /dev/sdb1
sudo dd if=cosmic-desktop-i386-lubuntu-0827.iso of=/dev/sdb bs=1M && sleep 10
Boot i386, Check disk for defects, No errors found
Reboot i386, CTRL+ALT+T, mouse cursor at the edge of invisible terminal,
type blindly: scrot [ENTER], CTRL+ALT+F2, lubuntu, sudo -s
scp 2018*.png :~/lubuntu, scp syslog :~/lubuntu, scp Xorg.0.log :~/xubuntu

For Xubuntu 18.10 0827:
lsblk
umount /dev/sdb1
sudo dd if=cosmic-desktop-i386-xubuntu-0827.iso of=/dev/sdb bs=1M && sleep 10
Boot i386, Check disk for defects, No errors found
Reboot i386, CTRL+ALT+T, scp syslog :~/xubuntu, scp Xorg.0.log :~/xubuntu

The scrot image comes out as black, attached here. The other files in new posts.

Lubuntu 18.10 0827 /var/log/syslog

Lubuntu 18.10 0827 /var/log/Xorg.0.log

Xubuntu 18.10 0827 /var/log/syslog

Xubuntu 18.10 0827 /var/log/Xorg.0.log

Xubuntu 18.10 0827 lsmod

I need a screenshot from both the system that works and the one that
doesn't with a clear indication of what's wrong.

Lubuntu 18.10 0827 lsmod

On phone proof picture see [ ->| ] mouse cursor at invisible right edge of invisible terminal window.

Does it help if I make a Youtube video showing Lubuntu booting problem and Xubuntu booting and put the link here ? - I have Logitech C910. Would take a day or two to finish.

Can't make screenshot in Lubuntu (black image from scrot), Xubuntu looks fine.

Thank you.

Initially the lxqt-powermanagement message does not appear. After I press CTRL+ALT+T in Lubuntu 18.10, the entire desktop flickers and the lxqt-powermanagement message appears and the mouse cursor dissapears, when I move the mouse cursor it reappears at the edges of the desktop and dissapears to the center of the desktop. Tested in virtualbox on another computer with settings 512 MB RAM and PAE enabled and works very well there.

Use ScreenGrab to take the screenshot in Lubuntu 18.10. Screenshooter in
Xubuntu. Grainy phone pics and YouTube videos are really not helping.

I can let you ssh into the Lubuntu 18.10 live cd at a specified UTC time if the ram can accomodate installing openssh-server, can install additional 256MB ram but it's at 333Mhz not 400 Mhz. I tested port forwarding on router ssh working from another location.

Tommorow I will post the screenshots if I discover how to do them.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

While I can't exactly see the problem, I can parse those files you
attached. I find something interesting:

Aug 27 17:17:19 lubuntu kernel: [ 41.607050] radeon 0000:01:00.0:
texture bo too small ((1024 768) (64 1) 1 26 0 -> 3145728 have 4096)
Aug 27 17:17:19 lubuntu kernel: [ 41.607057] radeon 0000:01:00.0:
alignments 1024 64 1 256
Aug 27 17:17:19 lubuntu kernel: [ 41.607136] [drm:radeon_cs_ioctl
[radeon]] *ERROR* Invalid command stream !

This occurs shortly after sddm loads. There'a a bug that results in some
updates to the radeon driver that mentions sddm:
https://bugs.freedesktop.org/show_bug.cgi?id=105381

I can only presume this is some sort of interaction between sddm and
that bug. That said, I would encourage you to check out Kubuntu and see
if you have problems with it. My guess is that you do.

Meanwhile, that fix is coming soon, but hasn't landed yet. Looking at
the Debian changelog "glamor: Use GBM for BO allocation when possible"
is found in version 1:18.0.1-2 while we are on 1:18.0.1-1build1.

In any case, we can be certain that the issue is not Lubuntu artwork!

 status invalid
 affects ubuntu/xserver-xorg-video-ati
 status fixcommitted
 summary "Invalid command stream with Radeon driver"
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One more thing. The corrected version is actually in proposed:
https://launchpad.net/ubuntu/+source/xserver-xorg-video-ati/1:18.0.1-2

I do not recommend enabling proposed in general, especially for
something so crucial to the whole system. However, since it seems you're
doing testing and not on a production system, it might be worthwhile to
enable proposed and get the likely solution:
https://wiki.ubuntu.com/Testing/EnableProposed