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Problems with KDE in Debian Stretch

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  Problems with KDE in Debian Stretch Daniel Bareiro <daniel-listas@gmx.net> - 2018-03-10 19:50 +0100
    Re: Problems with KDE in Debian Stretch Brad Rogers <brad@fineby.me.uk> - 2018-03-10 20:20 +0100
      Re: Problems with KDE in Debian Stretch Daniel Bareiro <daniel-listas@gmx.net> - 2018-03-10 21:00 +0100
        Re: Problems with KDE in Debian Stretch Brad Rogers <brad@fineby.me.uk> - 2018-03-10 21:20 +0100
    Re: Problems with KDE in Debian Stretch Felix Miata <mrmazda@earthlink.net> - 2018-03-10 23:20 +0100
      Re: Problems with KDE in Debian Stretch Daniel Bareiro <daniel-listas@gmx.net> - 2018-03-11 04:40 +0100
        Re: Problems with KDE in Debian Stretch Felix Miata <mrmazda@earthlink.net> - 2018-03-11 05:10 +0100
          Re: Problems with KDE in Debian Stretch Daniel Bareiro <daniel-listas@gmx.net> - 2018-04-09 03:00 +0200

#193589 — Problems with KDE in Debian Stretch

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Hi all!

Some time ago I started to experience some problems in KDE. In a random
way, when I'm using any application like Firefox, Chromium or
Thunderbird, the window starts blinking incessantly and becomes
unusable. When that happens I have no choice but to close the
application and reopen it.

This also usually happens with minimized applications. The name starts
blinking in the lower bar and only stops when I click on that minimized
application. It is a somewhat annoying behavior.

This did not happen to me with Debian Jessie always using the same
hardware: a Thinkpad T530.

About five days ago, after researching the Internet, I tried adding this
configuration in Xorg:

---------------------------
viper@orion:~$ cat /usr/share/X11/xorg.conf.d/20-intel.conf
Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   #Option      "AccelMethod"  "sna"
   Option      "TearFree"    "true"
   Option      "DRI"    "3"
EndSection
---------------------------

Then I rebooted the notebook and it seemed like that had solved the
problem. But yesterday I had this problem with Chromium and today I had
it several times with Firefox while watching some videos.

It's kind of annoying because I have to close the application and open
it again.

I would like to know if anyone had this problem and was able to solve it
in some way. If you have resolved it definitively, I would appreciate if
you could share the used solution.

Thanks in advance.


Kind regards,
Daniel

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#193590

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On Sat, 10 Mar 2018 15:42:31 -0300
Daniel Bareiro <daniel-listas@gmx.net> wrote:

Hello Daniel,

>I would like to know if anyone had this problem and was able to solve it
>in some way. If you have resolved it definitively, I would appreciate if

Read the answers posted to the very similar question you asked on 1st
March.

Did you try the suggestion that came from Bernd?

-- 
 Regards  _
         / )           "The blindingly obvious is
        / _)rad        never immediately apparent"
Dream on white boy, dream on black girl
Original Sin - INXS

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#193591

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On 10/03/18 16:09, Brad Rogers wrote:

> Hello Daniel,

Hello, Brad. Thanks for your reply.

>> I would like to know if anyone had this problem and was able to solve it
>> in some way. If you have resolved it definitively, I would appreciate if

> Read the answers posted to the very similar question you asked on 1st
> March.
> 
> Did you try the suggestion that came from Bernd?

Thanks for letting me know this. I just checked the list archive because
I had problems with this email account and had to re-subscribe. So there
are messages that I didn't receive in my mailbox. In fact, I had doubts
that message with my question had reached the list and that's why I sent
this new message.

Thanks Curt and Bernd for your replies. Let me answer you here:

Curt:

> After looking briefly on the Network, searching for "KDE window
> flickering," you don't appear to be alone, from which fact a
> certain comfort can be derived (and help ideas too from others in the
> same blinking boat).
>
> Your problem seems "graphical" in nature.
>
> Maybe some aid and comfort here (if your driver's "intel"):
>
> https://bbs.archlinux.org/viewtopic.php?pid=1595276#p1595276

Yes, just that thread was the one that I read and from which I got the
configuration of Xorg that I applied although it does not seem to have
worked.

Bernd:

> Yes, I had a similar problem, not so serious, also intel graphics.
>
> I changed the composer from open-gl to Xrender and the problem was >
> gone.

Thank you for your suggestion. I'm going to try it and I'll report the
results.

Thank you both for your time.


Kind regards,
Daniel

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#193595

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On Sat, 10 Mar 2018 16:55:03 -0300
Daniel Bareiro <daniel-listas@gmx.net> wrote:

Hello Daniel,

>Thanks for letting me know this. I just checked the list archive because
>I had problems with this email account and had to re-subscribe. So there

Ah, I see.

Good to hear you're now back on track.

I'm sure people will be interested in your findings.

-- 
 Regards  _
         / )           "The blindingly obvious is
        / _)rad        never immediately apparent"
I'd hate to look into those eyes and see an ounce of pain
Sweet Child O'Mine - Guns 'N' Roses

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#193599

Daniel Bareiro composed on 2018-03-10 13:42 (UTC-0500):
...
> hardware: a Thinkpad T530.

> About five days ago, after researching the Internet, I tried adding this
> configuration in Xorg:

> ---------------------------
> viper@orion:~$ cat /usr/share/X11/xorg.conf.d/20-intel.conf
> Section "Device"
>    Identifier  "Intel Graphics"
>    Driver      "intel"
>    #Option      "AccelMethod"  "sna"
>    Option      "TearFree"    "true"
>    Option      "DRI"    "3"
> EndSection
> ---------------------------

Have you ever tried the default driver? Search tells me T530 has HD Graphics
4000 on Ivy Bridge, roughly 5-6 years old, which ought to work with it if not be
optimal. It's built into the Xorg server in Stretch. To use can take as little
effort as not having xserver-xorg-video-intel installed, but in your case it
will likely require eliminating or modifying 20-intel.conf.

I have multiple Intel gfx machines, all older or newer than Ivy Bridge. All use
the integrated modeset(0) driver with any server newer than 1.16.x.

The Intel gfx driver hasn't had a formal release in going on 4 years, nothing
but cgit milestones since 2.99.917.
https://cgit.freedesktop.org/xorg/driver/xf86-video-intel/
https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/886898-ubuntu-debian-abandon-intel-x-org-driver-for-most-hardware-moves-to-modesetting-ddx
-- 
"Wisdom is supreme; therefore get wisdom. Whatever else you
get, get wisdom." Proverbs 4:7 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

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#193609

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Hi, Felix.

On 10/03/18 19:11, Felix Miata wrote:

> Daniel Bareiro composed on 2018-03-10 13:42 (UTC-0500):
> ...
>> hardware: a Thinkpad T530.
> 
>> About five days ago, after researching the Internet, I tried adding this
>> configuration in Xorg:
> 
>> ---------------------------
>> viper@orion:~$ cat /usr/share/X11/xorg.conf.d/20-intel.conf
>> Section "Device"
>>    Identifier  "Intel Graphics"
>>    Driver      "intel"
>>    #Option      "AccelMethod"  "sna"
>>    Option      "TearFree"    "true"
>>    Option      "DRI"    "3"
>> EndSection
>> ---------------------------

> Have you ever tried the default driver? Search tells me T530 has HD Graphics
> 4000 on Ivy Bridge, roughly 5-6 years old, which ought to work with it if not be
> optimal. It's built into the Xorg server in Stretch. To use can take as little
> effort as not having xserver-xorg-video-intel installed, but in your case it
> will likely require eliminating or modifying 20-intel.conf.
> 
> I have multiple Intel gfx machines, all older or newer than Ivy Bridge. All use
> the integrated modeset(0) driver with any server newer than 1.16.x.
> 
> The Intel gfx driver hasn't had a formal release in going on 4 years, nothing
> but cgit milestones since 2.99.917.
> https://cgit.freedesktop.org/xorg/driver/xf86-video-intel/
> https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/intel-linux/886898-ubuntu-debian-abandon-intel-x-org-driver-for-most-hardware-moves-to-modesetting-ddx

I think that before adding the file with the configuration that I
mentioned (/usr/share/X11/xorg.conf.d/20-intel.conf), I was using the
default driver. At least I don't have a /etc/X11/xorg.conf file.

In essence the configuration I suppose that it will have been the same
one that I kept previously with Jessie and with which it was not having
problems with Jessie.

Currently I have these packages installed:

---------------------------------------
i  xorg - X.Org X Window System
i A xorg-docs-core - Core documentation for the X.org X Window System
i A xorg-sgml-doctools - Common tools for building X.Org SGML documentation
i A xserver-xorg - X.Org X server
i A xserver-xorg-core - Xorg X server - core server
i A xserver-xorg-input-all - X.Org X server -- input driver metapackage
i A xserver-xorg-input-libinput - X.Org X server -- libinput input driver
i A xserver-xorg-input-wacom - X.Org X server -- Wacom input driver
i A xserver-xorg-legacy - setuid root Xorg server wrapper
i A xserver-xorg-video-all - X.Org X server -- output driver metapackage
i A xserver-xorg-video-amdgpu - X.Org X server -- AMDGPU display driver
i A xserver-xorg-video-ati - X.Org X server -- AMD/ATI display driver
wrapper
i A xserver-xorg-video-fbdev - X.Org X server -- fbdev display driver
i A xserver-xorg-video-intel - X.Org X server -- Intel i8xx, i9xx
display driver
i A xserver-xorg-video-nouveau - X.Org X server -- Nouveau display driver
i A xserver-xorg-video-qxl - X.Org X server -- QXL display driver
i A xserver-xorg-video-radeon - X.Org X server -- AMD/ATI Radeon display
driver
i A xserver-xorg-video-vesa - X.Org X server -- VESA display driver
i A xserver-xorg-video-vmware - X.Org X server -- VMware display driver
---------------------------------------

I guess these would be the same packages I was using with Jessie (if so,
I suppose I would also have installed xserver-xorg-video-intel), but
honestly, I don't have registered the ones I had installed then.

Regarding hardware, here is some more information provided by lspci:

---------------------------------------
viper@orion:~$ lspci -s 00:02.0 -vvv
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
        Subsystem: Lenovo 3rd Gen Core processor Graphics Controller
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 28
        Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at 5000 [size=64]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915
---------------------------------------

Note: I'm curious about the "<access denied>" in Capabilities.

Meanwhile I am testing the workaround suggested by Bernd about changing
the composer.

Thanks for your interest.

Kind regards,
Daniel

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#193611

Daniel Bareiro composed on 2018-03-11 00:35 (UTC-0300):
...
> I think that before adding the file with the configuration that I
> mentioned (/usr/share/X11/xorg.conf.d/20-intel.conf), I was using the
> default driver. At least I don't have a /etc/X11/xorg.conf file.

> In essence the configuration I suppose that it will have been the same
> one that I kept previously with Jessie and with which it was not having
> problems with Jessie.
...
> Currently I have these packages installed:
...
> i A xserver-xorg-video-all - X.Org X server -- output driver metapackage
> i A xserver-xorg-video-intel - X.Org X server -- Intel i8xx, i9xx display driver
...
> I guess these would be the same packages I was using with Jessie (if so,
> I suppose I would also have installed xserver-xorg-video-intel), but
> honestly, I don't have registered the ones I had installed then.

A default install of either Jessie or Stretch includes xserver-xorg-video-all,
and thus xserver-xorg-video-intel. Thus with your 3rd Gen Core, it's virtually
impossible that you weren't using the intel driver in Jessie, and unlikely in
Stretch.

It's simple enough to try the modeset(0) driver. Simply purge
xserver-xorg-video-intel, rename 20-intel.conf, and restart the xserver. Either
it's better, or it's not. If not, reinstall xserver-xorg-video-intel, restore
20-intel.conf (or not), and restart the xserver.

If nothing helps, try going into desktop settings and disabling compositing. If
that doesn't help either, ask on intel-gfx@lists.freedesktop.org which is a
hangout of Intel driver devs. Include 'lspci -nnk | grep -A3 VGA' output and
pastebin Xorg.0.log.
-- 
"Wisdom is supreme; therefore get wisdom. Whatever else you
get, get wisdom." Proverbs 4:7 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

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#194596

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Hi, Felix.

On 11/03/18 01:09, Felix Miata wrote:

>> I think that before adding the file with the configuration that I
>> mentioned (/usr/share/X11/xorg.conf.d/20-intel.conf), I was using the
>> default driver. At least I don't have a /etc/X11/xorg.conf file.
>>
>> In essence the configuration I suppose that it will have been the same
>> one that I kept previously with Jessie and with which it was not having
>> problems with Jessie.
>> ...
>> Currently I have these packages installed:
>> ...
>> i A xserver-xorg-video-all - X.Org X server -- output driver metapackage
>> i A xserver-xorg-video-intel - X.Org X server -- Intel i8xx, i9xx display driver
>> ...
>> I guess these would be the same packages I was using with Jessie (if so,
>> I suppose I would also have installed xserver-xorg-video-intel), but
>> honestly, I don't have registered the ones I had installed then.

> A default install of either Jessie or Stretch includes xserver-xorg-video-all,
> and thus xserver-xorg-video-intel. Thus with your 3rd Gen Core, it's virtually
> impossible that you weren't using the intel driver in Jessie, and unlikely in
> Stretch.
> 
> It's simple enough to try the modeset(0) driver. Simply purge
> xserver-xorg-video-intel, rename 20-intel.conf, and restart the xserver. Either
> it's better, or it's not. If not, reinstall xserver-xorg-video-intel, restore
> 20-intel.conf (or not), and restart the xserver.
> 
> If nothing helps, try going into desktop settings and disabling compositing. If
> that doesn't help either, ask on intel-gfx@lists.freedesktop.org which is a
> hangout of Intel driver devs. Include 'lspci -nnk | grep -A3 VGA' output and
> pastebin Xorg.0.log.

I have tried the workaround mentioned by Bernd about changing the
compositor from OpenGL to XRender and during almost a month of testing
with that configuration I have not had the problem again.

I would like to point out that I made this change without removing the
configuration in /usr/share/X11/xorg.conf.d/20-intel.conf that I
mentioned in a previous message. Maybe I would have to remove this
configuration to check if the solution is due to the combination of the
configuration in that file with the use of XRender or if only using
XRender is enough.

I will also try the solution you suggested, purging the package
xserver-xorg-video-intel and renaming 20-intel.conf.

Thank you all for your interest. Much appreciated.

Kind regards,
Daniel

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