Debian Bug report logs - #705143
defaulting to 16-bit color depth breaks Cinnamon 2D

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

From: Peter Tuharsky <tuharsky@misbb.sk>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: ltsp-server-standalone: LTSP client graphics severely corrupt with Cinnamon 2D desktop

Date: Wed, 10 Apr 2013 17:36:21 +0200

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

Package: ltsp-server-standalone
Version: 5.4.2-6
Severity: important

I'm trying to use LTSP with Debian Wheezy. I have installed Cinnamon from Linux
Mint repositories, since the Gnome 3 dosen't work for thin clients, Gnome
Classic (fallback) is quite dumb, and Cinnamon falls back to Gnome Clasic too.
So only Cinnamon 2D remains the last GNOME-like environment in the line.

However, the Cinnamon 2D opens with severely corrupted graphics, rendering it
quite useless.

When used directly on the server, the Cinnamon 2D works fine. Moreover, I
installed one of the thin clients with Debian Wheezy, effectively making it a
thick client (other words, a standalone desktop PC), and the Cinnamon 2D works
fine. However booting the machine as LTSP thin client again, screen corrupted
in Cinnamon 2D.

Please, are there any hints, what can I try to make it work?

I attach two screenshots - first is taken after logon, second is with Libre
Office open - please note that only half screen is used, however controls react
on the right (fictive) places on screen, other words, in order to click the
"close" buttox (X), I must click on the very right top edge of the screen, not
at the place where the X button is rendered.


-- System Information:
Debian Release: 7.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=sk_SK.UTF-8, LC_CTYPE=sk_SK.UTF-8 (charmap=UTF-8) (ignored: LC_ALL
set to sk_SK.UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages ltsp-server-standalone depends on:
ii  gnome-session [x-session-manager]           3.4.2.1-3
ii  gnome-session-fallback [x-session-manager]  3.4.2.1-3
ii  isc-dhcp-server [dhcp3-server]              4.2.2.dfsg.1-5+deb70u3
ii  ldm-server                                  2:2.2.11-2
ii  libasound2-plugins                          1.0.25-2
ii  ltsp-server                                 5.4.2-6
ii  ltspfs                                      1.1-2
ii  metacity [x-window-manager]                 1:2.34.3-4
ii  nbd-server                                  1:3.2-2
ii  nfs-kernel-server                           1:1.2.6-3
ii  openbsd-inetd [inet-superserver]            0.20091229-2
ii  openssh-server                              1:6.0p1-4
ii  squashfs-tools                              1:4.2-5
ii  tftpd-hpa                                   5.2-4
ii  x11-utils                                   7.7~1
ii  xauth                                       1:1.0.7-1

Versions of packages ltsp-server-standalone recommends:
ii  ltsp-docs  1.1-1

ltsp-server-standalone suggests no packages.

[Screenshot from 2013-04-10 17:21:35.png (image/png, attachment)]

[Screenshot from 2013-04-10 17:21:57.png (image/png, attachment)]

Message #10 received at 705143@bugs.debian.org (full text, mbox, reply):

From: Vagrant Cascadian <vagrant@debian.org>

To: Peter Tuharsky <tuharsky@misbb.sk>, 705143@bugs.debian.org

Subject: Re: Bug#705143: ltsp-server-standalone: LTSP client graphics severely corrupt with Cinnamon 2D desktop

Date: Sun, 5 Jan 2014 23:39:23 -0800

On Wed, Apr 10, 2013 at 05:36:21PM +0200, Peter Tuharsky wrote:
> When used directly on the server, the Cinnamon 2D works fine. Moreover, I
> installed one of the thin clients with Debian Wheezy, effectively making it a
> thick client (other words, a standalone desktop PC), and the Cinnamon 2D works
> fine. However booting the machine as LTSP thin client again, screen corrupted
> in Cinnamon 2D.
> 
> Please, are there any hints, what can I try to make it work?

This is a bit of a long shot, but try setting in lts.conf:

  X_SMART_COLOR_DEPTH=false

or

  X_COLOR_DEPTH=24

It may be issues with 16-bit color depth, which is the default for thin clients
unless specified. Although it sounds like your issues may be a bit more
severe...


live well,
  vagrant

Message #15 received at 705143@bugs.debian.org (full text, mbox, reply):

From: "Mgr. Peter Tuharsky" <tuharsky@misbb.sk>

To: 705143@bugs.debian.org

Subject: Re: Bug#705143: ltsp-server-standalone: LTSP client graphics severely corrupt with Cinnamon 2D desktop

Date: Fri, 17 Jan 2014 08:39:04 +0100

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

Yes, it helps!

Thank You.


Dňa 06.01.2014 08:39, Vagrant Cascadian  wrote / napísal(a):
> On Wed, Apr 10, 2013 at 05:36:21PM +0200, Peter Tuharsky wrote:
>> When used directly on the server, the Cinnamon 2D works fine. Moreover, I
>> installed one of the thin clients with Debian Wheezy, effectively making it a
>> thick client (other words, a standalone desktop PC), and the Cinnamon 2D works
>> fine. However booting the machine as LTSP thin client again, screen corrupted
>> in Cinnamon 2D.
>>
>> Please, are there any hints, what can I try to make it work?
> 
> This is a bit of a long shot, but try setting in lts.conf:
> 
>   X_SMART_COLOR_DEPTH=false
> 
> or
> 
>   X_COLOR_DEPTH=24
> 
> It may be issues with 16-bit color depth, which is the default for thin clients
> unless specified. Although it sounds like your issues may be a bit more
> severe...
> 
> 
> live well,
>   vagrant
> 

[tuharsky.vcf (text/x-vcard, attachment)]

Message #20 received at 705143@bugs.debian.org (full text, mbox, reply):

From: Vagrant Cascadian <vagrant@debian.org>

To: 705143@bugs.debian.org

Subject: Re: Bug#705143: ltsp-server-standalone: LTSP client graphics severely corrupt with Cinnamon 2D desktop

Date: Sun, 19 Oct 2014 14:18:22 -0700

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

Control: retitle -1 defaulting to 16-bit color depth breaks Cinnamon 2D
Control: priority -1 normal

On 2014-01-05, Vagrant Cascadian wrote:
> On Wed, Apr 10, 2013 at 05:36:21PM +0200, Peter Tuharsky wrote:
>> When used directly on the server, the Cinnamon 2D works fine. Moreover, I
>> installed one of the thin clients with Debian Wheezy, effectively making it a
>> thick client (other words, a standalone desktop PC), and the Cinnamon 2D works
>> fine. However booting the machine as LTSP thin client again, screen corrupted
>> in Cinnamon 2D.
>> 
>> Please, are there any hints, what can I try to make it work?
>
> This is a bit of a long shot, but try setting in lts.conf:
>
>   X_SMART_COLOR_DEPTH=false
>
> or
>
>   X_COLOR_DEPTH=24
>
> It may be issues with 16-bit color depth, which is the default for thin clients
> unless specified. Although it sounds like your issues may be a bit more
> severe...

Sounds like these workarounds resolved the issue, in the long term we
might consider just using the default color depth, though that
significantly increases the network bandwidth used...

live well,
  vagrant

[Message part 2 (application/pgp-signature, inline)]

Message #29 received at 705143@bugs.debian.org (full text, mbox, reply):

From: "USPS Home Delivery" <lewis.harrell@moxt.de>

To: 705143@bugs.debian.org

Subject: Please recheck your delivery address (USPS parcel 11473635573)

Date: Fri, 27 Jan 2017 03:04:06 +0100

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

Dear Customer,

We can not deliver your parcel arrived at January 25.

Postal label is enclosed to this e-mail. Please check the attachment!

With sincere thanks,
Lewis Harrell,
USPS Mail Delivery Manager.

[Undelivered-Package-11473635573.zip (application/zip, attachment)]

Message #34 received at 705143@bugs.debian.org (full text, mbox, reply):

From: apayne@mmepayne.com

To: 705143@bugs.debian.org

Subject: Notification status of your delivery (UPS 009620249)

Date: Wed, 8 Mar 2017 10:42:39 +0300

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

Dear Customer,

Your item has arrived at the UPS Post Office at March 07, but the courier was unable to deliver parcel to you.

Please check the attachment for details!

Yours faithfully,
Armando Bruno,
UPS Station Agent.

[UPS-Delivery-009620249.zip (application/zip, attachment)]

Message #39 received at 705143@bugs.debian.org (full text, mbox, reply):

From: Vagrant Cascadian <vagrant@debian.org>

To: 705143@bugs.debian.org

Subject: Re: Bug#705143: ltsp-server-standalone: LTSP client graphics severely corrupt with Cinnamon 2D desktop

Date: Sat, 21 Dec 2019 17:20:33 -0800

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

Version: 19.11-1

On 2014-10-19, Vagrant Cascadian wrote:
> On 2014-01-05, Vagrant Cascadian wrote:
>> On Wed, Apr 10, 2013 at 05:36:21PM +0200, Peter Tuharsky wrote:
>>> When used directly on the server, the Cinnamon 2D works fine. Moreover, I
>>> installed one of the thin clients with Debian Wheezy, effectively making it a
>>> thick client (other words, a standalone desktop PC), and the Cinnamon 2D works
>>> fine. However booting the machine as LTSP thin client again, screen corrupted
>>> in Cinnamon 2D.
>>> 
>>> Please, are there any hints, what can I try to make it work?
>>
>> This is a bit of a long shot, but try setting in lts.conf:
>>
>>   X_SMART_COLOR_DEPTH=false
>>
>> or
>>
>>   X_COLOR_DEPTH=24
>>
>> It may be issues with 16-bit color depth, which is the default for thin clients
>> unless specified. Although it sounds like your issues may be a bit more
>> severe...
>
> Sounds like these workarounds resolved the issue, in the long term we
> might consider just using the default color depth, though that
> significantly increases the network bandwidth used...

Recent versions fo LTSP use the default color depth, and do not support
thin clients.


live well,
  vagrant

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