Debian Bug report logs - #867701
Radeon HD 6450, black screen, cursor, no console

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Ivan Sergio Borgonovo <ivan.s.b@gmail.com>

To: submit@bugs.debian.org

Subject: Radeon HD 6450, black screen, cursor, no console

Date: Sat, 8 Jul 2017 20:06:52 +0200

Package: xserver-xorg-video-radeon
Version: 1:7.9.0-1
Severity: grave

Upgrading from 1:7.8.0-1+b1 to 1:7.9.0-1, PC boot but I get a black 
screen with cursor on the top left, I can't switch to console, xorg log 
just say

[    28.383] (II) glamor: OpenGL accelerated X.org driver based.
[    28.441] (EE)
[    28.441] (EE) Backtrace:

downgrading solve the problem.

I've a very very similar PC, same motherboard and slightly different 
video card (Turks PRO [Radeon HD 6570) that works.

-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it http://www.borgonovo.net

Message #10 received at 867701@bugs.debian.org (full text, mbox, reply):

From: Michel Dänzer <michel@daenzer.net>

To: Ivan Sergio Borgonovo <ivan.s.b@gmail.com>

Cc: 867701@bugs.debian.org

Subject: Re: Bug#867701: Radeon HD 6450, black screen, cursor, no console

Date: Mon, 10 Jul 2017 11:03:31 +0900

On 09/07/17 03:06 AM, Ivan Sergio Borgonovo wrote:
> Package: xserver-xorg-video-radeon
> Version: 1:7.9.0-1
> Severity: grave

I doubt this severity is justified.


> Upgrading from 1:7.8.0-1+b1 to 1:7.9.0-1, PC boot but I get a black
> screen with cursor on the top left, I can't switch to console, xorg log
> just say
> 
> [    28.383] (II) glamor: OpenGL accelerated X.org driver based.
> [    28.441] (EE)
> [    28.441] (EE) Backtrace:

Please attach the full Xorg log file and output of dmesg corresponding
to the problem.


Is there more information in the Xorg stderr output? Maybe try setting
the environment variable EGL_LOG_LEVEL=debug as well for that.


Does the same problem happen with 1:7.8.0-1+b1 with

	Option "AccelMethod" "glamor"

in /etc/X11/xorg.conf ?


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

Message #15 received at 867701@bugs.debian.org (full text, mbox, reply):

From: Ivan Sergio Borgonovo <ivan.s.b@gmail.com>

To: 867701@bugs.debian.org

Subject: Re: Bug#867701: Radeon HD 6450, black screen, cursor, no console

Date: Sat, 15 Jul 2017 00:10:26 +0200

[Message part 1 (text/plain, inline)]

On 07/10/2017 04:03 AM, Michel Dänzer wrote:

Sorry for the delay.

> On 09/07/17 03:06 AM, Ivan Sergio Borgonovo wrote:
>> Package: xserver-xorg-video-radeon
>> Version: 1:7.9.0-1
>> Severity: grave

> I doubt this severity is justified.

Why?
X doesn't start so it "makes the package in question unusable", not to 
mention that it makes all packages requiring X unusable.

I don't want to ‎polemicize but before assigning the severity I read the 
guidelines and grave seemed to fit.
I think "grave" is the less serious severity level that will block 
upgrade if you have apt-listbugs installed.
You're welcome to correct me so I'll do a better work in next bug reports.

>> Upgrading from 1:7.8.0-1+b1 to 1:7.9.0-1, PC boot but I get a black
>> screen with cursor on the top left, I can't switch to console, xorg log
>> just say

>> [    28.383] (II) glamor: OpenGL accelerated X.org driver based.
>> [    28.441] (EE)
>> [    28.441] (EE) Backtrace:

> Please attach the full Xorg log file and output of dmesg corresponding
> to the problem.

dmesg doesn't report any error, only difference between the working box 
is different way to load fb since one box doesn't use grub efi and a 
slightly different video board.
All software is at the same version level, the motherboard is the same 
and the CPU are nearly identical (AMD FX(tm)-6300 vs 6100).

> Is there more information in the Xorg stderr output? Maybe try setting
> the environment variable EGL_LOG_LEVEL=debug as well for that.

See atachments.

> Does the same problem happen with 1:7.8.0-1+b1 with
>
> 	Option "AccelMethod" "glamor"
>
> in /etc/X11/xorg.conf ?

Older xserver-xorg-video-radeon with that option DOESN'T WORK.
Black screen, text cursor at the top right corner ( _ ).

Newer xserver-xorg-video-radeon with that option DOESN'T WORK.
But I can't see the text cursor (_) anymore. Just black screen.

X log is the same.

Recent upgrade to 4.11.0-1 kernel didn't improve the situation.

Downgrading xserver-xorg-video-radeon and removing that option makes X work.

Thanks.

-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it http://www.borgonovo.net

[dmesg (text/plain, attachment)]

[xerr (text/plain, attachment)]

[Xorg.0.log (text/x-log, attachment)]

Message #20 received at 867701@bugs.debian.org (full text, mbox, reply):

From: Michel Dänzer <michel@daenzer.net>

To: Ivan Sergio Borgonovo <ivan.s.b@gmail.com>

Cc: 867701@bugs.debian.org

Subject: Re: Bug#867701: Radeon HD 6450, black screen, cursor, no console

Date: Sat, 15 Jul 2017 12:29:39 +0900

On 15/07/17 07:10 AM, Ivan Sergio Borgonovo wrote:
> On 07/10/2017 04:03 AM, Michel Dänzer wrote:
>> On 09/07/17 03:06 AM, Ivan Sergio Borgonovo wrote:
>>> Package: xserver-xorg-video-radeon
>>> Version: 1:7.9.0-1
>>> Severity: grave
> 
>> I doubt this severity is justified.
> 
> Why?
> X doesn't start so it "makes the package in question unusable", not to
> mention that it makes all packages requiring X unusable.

The bug severities are defined in the context of all users, not just
some individual users. "Makes the package in question unusable" means
the package cannot be used on any system, which isn't the case here (or
there would have been many more reports about it, but there hasn't been
any other report).


>> Is there more information in the Xorg stderr output? Maybe try setting
>> the environment variable EGL_LOG_LEVEL=debug as well for that.
> 
> See atachments.

[...]

> libEGL debug: EGL search path is /usr/lib/x86_64-linux-gnu/egl

Please provide the output of the following:

apt-cache policy libegl1-mesa

ldconfig -p|grep libEGL


>> Does the same problem happen with 1:7.8.0-1+b1 with
>>
>>     Option "AccelMethod" "glamor"
>>
>> in /etc/X11/xorg.conf ?
> 
> Older xserver-xorg-video-radeon with that option DOESN'T WORK.
> Black screen, text cursor at the top right corner ( _ ).

Right, as expected the problem is specific to glamor, which is the
default for your GPU in 7.9.0 but wasn't yet in 7.8.0. This means in the
worst case you can work around the problem with

	Option	"AccelMethod" "EXA"

in /etc/X11/xorg.conf.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

Message #25 received at 867701@bugs.debian.org (full text, mbox, reply):

From: Ivan Sergio Borgonovo <ivan.s.b@gmail.com>

To: 867701@bugs.debian.org

Subject: Re: Bug#867701: Radeon HD 6450, black screen, cursor, no console

Date: Sat, 15 Jul 2017 13:24:01 +0200

[Message part 1 (text/plain, inline)]

On 07/15/2017 05:29 AM, Michel Dänzer wrote:
> On 15/07/17 07:10 AM, Ivan Sergio Borgonovo wrote:
>> On 07/10/2017 04:03 AM, Michel Dänzer wrote:
>>> On 09/07/17 03:06 AM, Ivan Sergio Borgonovo wrote:
>>>> Package: xserver-xorg-video-radeon
>>>> Version: 1:7.9.0-1
>>>> Severity: grave
>>
>>> I doubt this severity is justified.
>>
>> Why?
>> X doesn't start so it "makes the package in question unusable", not to
>> mention that it makes all packages requiring X unusable.
> 
> The bug severities are defined in the context of all users, not just
> some individual users. "Makes the package in question unusable" means
> the package cannot be used on any system, which isn't the case here (or
> there would have been many more reports about it, but there hasn't been
> any other report).

Fine even if I don't find practically useful the constraint of "all users".
In effect without knowing the nature of the bug and the effective 
affected system, setting the severity to "grave" is a way to stop users 
from upgrading if they use apt-listbugs.
Probably the problem arise from the superposition of "priority" for 
developers and "severity" in the same tag.

> Please provide the output of the following:
> 
> apt-cache policy libegl1-mesa
> 
> ldconfig -p|grep libEGL

See attachments.

>>> Does the same problem happen with 1:7.8.0-1+b1 with
>>>
>>>      Option "AccelMethod" "glamor"
>>>
>>> in /etc/X11/xorg.conf ?
>>
>> Older xserver-xorg-video-radeon with that option DOESN'T WORK.
>> Black screen, text cursor at the top right corner ( _ ).
> 
> Right, as expected the problem is specific to glamor, which is the
> default for your GPU in 7.9.0 but wasn't yet in 7.8.0. This means in the
> worst case you can work around the problem with
> 
> 	Option	"AccelMethod" "EXA"
> 
> in /etc/X11/xorg.conf.

Thanks, this solved the problem.

Could I suggest to add some notes in the changelog before closing the bug?

Thanks again.

-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it http://www.borgonovo.net

[mesa.txt (text/plain, attachment)]

[ldconfig.txt (text/plain, attachment)]

Message #30 received at 867701@bugs.debian.org (full text, mbox, reply):

From: Michel Dänzer <michel@daenzer.net>

To: Ivan Sergio Borgonovo <ivan.s.b@gmail.com>

Cc: 867701@bugs.debian.org

Subject: Re: Bug#867701: Radeon HD 6450, black screen, cursor, no console

Date: Sun, 16 Jul 2017 11:56:06 -0400

On 15/07/17 07:24 AM, Ivan Sergio Borgonovo wrote:
> On 07/15/2017 05:29 AM, Michel Dänzer wrote:
>> On 15/07/17 07:10 AM, Ivan Sergio Borgonovo wrote:
>>> On 07/10/2017 04:03 AM, Michel Dänzer wrote:
>>>> On 09/07/17 03:06 AM, Ivan Sergio Borgonovo wrote:
> 
>> Please provide the output of the following:
>>
>> apt-cache policy libegl1-mesa
>>
>> ldconfig -p|grep libEGL
> 
> See attachments.

Hmm, the string "EGL search path is" and the corresponding code was 
removed upstream for Mesa 10.6. Look for instances of libEGL.so.1* other 
than /usr/lib/x86_64-linux-gnu/libEGL.so.1* on your system and see if 
removing those helps.


>>>> Does the same problem happen with 1:7.8.0-1+b1 with
>>>>
>>>>      Option "AccelMethod" "glamor"
>>>>
>>>> in /etc/X11/xorg.conf ?
>>>
>>> Older xserver-xorg-video-radeon with that option DOESN'T WORK.
>>> Black screen, text cursor at the top right corner ( _ ).
>>
>> Right, as expected the problem is specific to glamor, which is the
>> default for your GPU in 7.9.0 but wasn't yet in 7.8.0. This means in the
>> worst case you can work around the problem with
>>
>>     Option    "AccelMethod" "EXA"
>>
>> in /etc/X11/xorg.conf.
> 
> Thanks, this solved the problem.
> 
> Could I suggest to add some notes in the changelog before closing the bug?

It's just a workaround. We don't know yet what the problem is, though 
it's likely specific to your system.


-- 
Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer

Message #35 received at 867701@bugs.debian.org (full text, mbox, reply):

From: Ivan Sergio Borgonovo <ivan.s.b@gmail.com>

Cc: 867701@bugs.debian.org

Subject: Re: Bug#867701: Radeon HD 6450, black screen, cursor, no console

Date: Mon, 17 Jul 2017 01:04:44 +0200

On 07/16/2017 05:56 PM, Michel Dänzer wrote:

> Hmm, the string "EGL search path is" and the corresponding code was 
> removed upstream for Mesa 10.6. Look for instances of libEGL.so.1* other 
> than /usr/lib/x86_64-linux-gnu/libEGL.so.1* on your system and see if 
> removing those helps.

I'm not sure about what you're asking.

On the problematic system apparently there are no packages installed 
containing libEGL*.*

apt-file search libEGL.so
libegl1-glvnd-nvidia: /usr/lib/x86_64-linux-gnu/nvidia/current/libEGL.so.1
libegl1-mesa: /usr/lib/x86_64-linux-gnu/libEGL.so.1
libegl1-mesa: /usr/lib/x86_64-linux-gnu/libEGL.so.1.0.0
libegl1-mesa-dev: /usr/lib/x86_64-linux-gnu/libEGL.so
libegl1-nvidia: /usr/lib/x86_64-linux-gnu/nvidia/current/libEGL.so.1
libegl1-nvidia: /usr/lib/x86_64-linux-gnu/nvidia/current/libEGL.so.375.66
libegl1-nvidia-legacy-340xx: 
/usr/lib/x86_64-linux-gnu/nvidia/legacy-340xx/libEGL.so.1
libegl1-nvidia-legacy-340xx: 
/usr/lib/x86_64-linux-gnu/nvidia/legacy-340xx/libEGL.so.340.102
virtualbox-guest-x11: /usr/lib/virtualbox/additions/libEGL.so
virtualbox-guest-x11: /usr/lib/virtualbox/additions/libEGL.so.1

but none of these packages are installed.

But
find /usr/lib/x86_64-linux-gnu/ -name libEGL*.*
/usr/lib/x86_64-linux-gnu/libEGL.so.1
/usr/lib/x86_64-linux-gnu/libEGL.so.1.0.0

ls -l /usr/lib/x86_64-linux-gnu/libEGL.so.1
lrwxrwxrwx 1 root root 15 Jul 17 00:57 
/usr/lib/x86_64-linux-gnu/libEGL.so.1 -> libEGL.so.1.0.0

aptitude reinstall glx-alternative-mesa
update-alternatives: warning: forcing reinstallation of alternative 
/usr/lib/mesa-diverted because link group glx is broken

On the working box I get:
find /usr/lib/x86_64-linux-gnu/ -name libEGL*.*
/usr/lib/x86_64-linux-gnu/libEGL.so.1

ls -l /usr/lib/x86_64-linux-gnu/libEGL.so.1
lrwxrwxrwx 1 root root 51 Jun 10  2016 
/usr/lib/x86_64-linux-gnu/libEGL.so.1 -> 
/etc/alternatives/glx--libEGL.so.1-x86_64-linux-gnu

>>>>> Does the same problem happen with 1:7.8.0-1+b1 with
>>>>>
>>>>>      Option "AccelMethod" "glamor"
>>>>>
>>>>> in /etc/X11/xorg.conf ?
>>>>
>>>> Older xserver-xorg-video-radeon with that option DOESN'T WORK.
>>>> Black screen, text cursor at the top right corner ( _ ).
>>>
>>> Right, as expected the problem is specific to glamor, which is the
>>> default for your GPU in 7.9.0 but wasn't yet in 7.8.0. This means in the
>>> worst case you can work around the problem with
>>>
>>>     Option    "AccelMethod" "EXA"
>>>
>>> in /etc/X11/xorg.conf.
>>
>> Thanks, this solved the problem.
>>
>> Could I suggest to add some notes in the changelog before closing the 
>> bug?
> 
> It's just a workaround. We don't know yet what the problem is, though 
> it's likely specific to your system.

Are you saying it is something more related to the installation history 
of that box rather then to the specific hardware?
Or it cold be a mix of the two?

Could I exploit the fact that I've 2 nearly identical boxes to track 
down the problem?

thanks

-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it http://www.borgonovo.net

Message #40 received at 867701@bugs.debian.org (full text, mbox, reply):

From: Michel Dänzer <michel@daenzer.net>

To: Ivan Sergio Borgonovo <ivan.s.b@gmail.com>

Cc: 867701@bugs.debian.org

Subject: Re: Bug#867701: Radeon HD 6450, black screen, cursor, no console

Date: Sun, 16 Jul 2017 22:39:50 -0400

On 16/07/17 07:04 PM, Ivan Sergio Borgonovo wrote:
> On 07/16/2017 05:56 PM, Michel Dänzer wrote:
> 
>> Hmm, the string "EGL search path is" and the corresponding code was 
>> removed upstream for Mesa 10.6. Look for instances of libEGL.so.1* 
>> other than /usr/lib/x86_64-linux-gnu/libEGL.so.1* on your system and 
>> see if removing those helps.
> 
> I'm not sure about what you're asking.
> 
> On the problematic system apparently there are no packages installed 
> containing libEGL*.*
> 
> apt-file search libEGL.so
> libegl1-glvnd-nvidia: /usr/lib/x86_64-linux-gnu/nvidia/current/libEGL.so.1
> libegl1-mesa: /usr/lib/x86_64-linux-gnu/libEGL.so.1
> libegl1-mesa: /usr/lib/x86_64-linux-gnu/libEGL.so.1.0.0
> libegl1-mesa-dev: /usr/lib/x86_64-linux-gnu/libEGL.so
> libegl1-nvidia: /usr/lib/x86_64-linux-gnu/nvidia/current/libEGL.so.1
> libegl1-nvidia: /usr/lib/x86_64-linux-gnu/nvidia/current/libEGL.so.375.66
> libegl1-nvidia-legacy-340xx: 
> /usr/lib/x86_64-linux-gnu/nvidia/legacy-340xx/libEGL.so.1
> libegl1-nvidia-legacy-340xx: 
> /usr/lib/x86_64-linux-gnu/nvidia/legacy-340xx/libEGL.so.340.102
> virtualbox-guest-x11: /usr/lib/virtualbox/additions/libEGL.so
> virtualbox-guest-x11: /usr/lib/virtualbox/additions/libEGL.so.1
> 
> but none of these packages are installed.
> 
> But
> find /usr/lib/x86_64-linux-gnu/ -name libEGL*.*
> /usr/lib/x86_64-linux-gnu/libEGL.so.1
> /usr/lib/x86_64-linux-gnu/libEGL.so.1.0.0
> 
> ls -l /usr/lib/x86_64-linux-gnu/libEGL.so.1
> lrwxrwxrwx 1 root root 15 Jul 17 00:57 
> /usr/lib/x86_64-linux-gnu/libEGL.so.1 -> libEGL.so.1.0.0
> 
> aptitude reinstall glx-alternative-mesa
> update-alternatives: warning: forcing reinstallation of alternative 
> /usr/lib/mesa-diverted because link group glx is broken

You don't need this package.

Does installing the libegl1-mesa package help?


-- 
Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer

Message #45 received at 867701@bugs.debian.org (full text, mbox, reply):

From: Ivan Sergio Borgonovo <ivan.s.b@gmail.com>

To: 867701@bugs.debian.org

Subject: Re: Bug#867701: Radeon HD 6450, black screen, cursor, no console

Date: Sat, 29 Jul 2017 23:38:16 +0200

Sorry for the delay.

On 07/17/2017 04:39 AM, Michel Dänzer wrote:
>> aptitude reinstall glx-alternative-mesa
>> update-alternatives: warning: forcing reinstallation of alternative 
>> /usr/lib/mesa-diverted because link group glx is broken
> 
> You don't need this package.

Thanks.

> Does installing the libegl1-mesa package help?

No, still have to add

Option       "AccelMethod"       "EXA"

Let me know if you need more info to diagnose the problem.

Thanks

-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it http://www.borgonovo.net

Message #50 received at 867701@bugs.debian.org (full text, mbox, reply):

From: Simon McVittie <smcv@debian.org>

To: Michel Dänzer <michel@daenzer.net>, 867701@bugs.debian.org

Subject: Re: Bug#867701: Radeon HD 6450, black screen, cursor, no console

Date: Tue, 7 Aug 2018 10:24:31 +0100

Control: severity -1 important

On Sat, 15 Jul 2017 at 12:29:39 +0900, Michel Dänzer wrote:
> The bug severities are defined in the context of all users, not just
> some individual users. "Makes the package in question unusable" means
> the package cannot be used on any system, which isn't the case here (or
> there would have been many more reports about it, but there hasn't been
> any other report).

Downgrading accordingly.

    smcv

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