Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread rhkramer
On Wednesday, April 10, 2019 11:41:21 AM D. Michael McIntyre wrote:
> On 4/10/19 8:54 AM, rhkra...@gmail.com wrote:
> > I guess you mean a retail desktop without Windows off the shelf?
> 
> No, I mean a retail desktop anything off the shelf.  Nobody stocks them
> anymore.  It's all laptops and all-in-ones, peppered with the occasional
> ridiculous "gaming PC" that has crap specs at a high price with some red
> LEDs thrown in to make it look, I don't know, gamey.

Have you checked out Newegg and TigerDirect (both for mail order).  Within the 
last year, I bought a new (not refurbished) desktop (in a mini-tower) for 
$299.  

(I don't know where in the world you are located -- it is possible they don't 
ship to your location.)

(They also sell a lot of refurbished units, but at $299 that was close to what 
I used to pay to buy components for a system, and this came with Windows, 
which I can use to update the map in my Garmin Nuvi 40 LM. ;-)

>From the order (from Tiger Direct, ordered 20180914) :


Item#: 41418724

AMD A6-8570 3.5GHz 
8GB DDR4 RAM
500GB HDD
Radeon R5 420 Graphics
6x USB 3.1, 4x USB 2.0, 1x VGA, 2x DisplayPorts
Windows 10 Professional
1XJ76US#ABA


The processor uses 65 watts, and there is a note somewhere "The APU can be 
configured to run at 45 Watt TDP."  (I like low power consumption, both to 
minimize heat and power use, as I keep my main machine up 24/7 (and on a 
UPS).)

I haven't put it in service yet -- in the old days, I watched to buy the 
components for my next machine at sale prices before I actually needed it -- I 
bought this on the same principle.  (Accepting Windows was sort of a sacrifice, 
but, as I mentioned, I should be able to update my Garmin maps (which is 
harder to do on Linux -- it can be done, most easily with 3rd party maps.)


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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread D. Michael McIntyre

On 4/10/19 3:52 AM, Sami Jumppanen wrote:

For dying computer owners: before upgrading anything, use a known good 
PSU.


That's a thought.  Just because I put a good PSU in a couple years ago 
doesn't mean the PSU isn't the issue now.  I don't remember what it is, 
but it's a ridiculously high grade component for this retail Walmart 
special.


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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread D. Michael McIntyre

On 4/10/19 8:54 AM, rhkra...@gmail.com wrote:


I guess you mean a retail desktop without Windows off the shelf?


No, I mean a retail desktop anything off the shelf.  Nobody stocks them 
anymore.  It's all laptops and all-in-ones, peppered with the occasional 
ridiculous "gaming PC" that has crap specs at a high price with some red 
LEDs thrown in to make it look, I don't know, gamey.


--
D. Michael McIntyre


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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread D. Michael McIntyre

On 4/9/19 4:55 AM, Will Godfrey wrote:


Is there nothing like that where you are?


There is, but my father made a scene, and I'm not welcome there anymore. 
 They wouldn't take back a laptop they ordered for Dad, so he said, 
"Can I smash it on the counter then?"  They gave the go ahead, and he 
did.  Smashed the laptop, smashed the glass display case.  I'm 
overwhelmed with pride.


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D. Michael McIntyre


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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread D. Michael McIntyre

On 4/9/19 7:49 AM, Sami Jumppanen wrote:


Out of curiosity, what is the problem?


I have no idea.  I'm in the middle of typing, and then the computer is 
just frozen rock solid.  When I get it back up, there's a good chance 
X11 or Weyland or whatever I'm using will be broken to a point where I 
can't figure out how to fix it.  In my current iteration of this, KDE 
boots with my session apps in a void, and then about five minutes later 
it finally throws the rest of my desktop around those windows.  There 
are no clues in the logs.  Damn if I know, basically.


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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread rhkramer
On Tuesday, April 09, 2019 04:37:15 AM D. Michael McIntyre wrote:
> I had gotten in the habit of just buying a retail desktop PC off the
> shelf, but you can't buy those anymore.  

I guess you mean a retail desktop without Windows off the shelf?




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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread Ted Felix

On 4/8/19 3:56 AM, Will Godfrey wrote:

My guess is that the delete
operation has left an invalid pointer somewhere.


  There are definitely bad pointers left around in the code. 
Intentionally.  (!?)  See the comments in 
SequenceManager::segmentDeleted().  If, as I explain there, the memory 
manager decides to hand you a pointer to the same block of memory again 
(a very reasonable possibility), then we've got a crash in the making. 
This might explain why some see it and some don't.  Different memory 
manager behavior.



However, if *immediately* after doing the delete, I save the file it seems to
sort everything out and is then OK.


  Save might be scrambling the memory manager enough that the same 
pointer address doesn't get reused.


  I'll see if I can reproduce this given all the new info.  It would be 
nice to have confirmation that SequenceManager is the culprit.  If I 
can't reproduce, I'll have a closer look at fixing all the intentional 
dangling pointers.  It's something that needs to be done anyway.


Ted.


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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread Sami Jumppanen
For dying computer owners: before upgrading anything, use a known good PSU.
I just lost a week worth of late nights trying to set up a new computer. I
deducted that it was the PSU on the nearly functional computer that had
caused CPU failure, by having something else than DC voltage. On the
average the voltages were a bit low, but contained AC spiking.

That CPU didn't work with decent PSU (normal voltage levels) anymore, on
any board I tried - the other boards didn't even boot into BIOS. I had
three PSUs to test and always it was the old one that made the old board
work so well that I could install Ubuntu Studio and upgrade it even once,
but then I got jams and interrupted HDD writes.

I postponed indefinitely testing the other boards with another CPU because
I had an older computer that had no problems - and still runs fine.

PSUs are dangerous! :)


ke 10. huhtik. 2019 klo 9.33 david (gn...@hawaii.rr.com) kirjoitti:

> On 4/8/19 10:37 PM, D. Michael McIntyre wrote:
> > I haven't tested the timing thing either.  My computer keeps freezing.
> > When I reboot it, I'm stuck at 1024x768, and the only way I have managed
> > to make progress on that issue is to reinstall Kubuntu.  I've been
> > around that bush three times now, and I have grown tired of the
> > aggravation.  This machine is rather old, and I suspect the hardware is
> > just flaking out.
>
> My main desktop/server, also rather old, finally died. The onboard video
> went first. Then the machine just quit coming up at all.
>
> The backup desktop/server still works. It's "newer" than the dead main
> one, but has some peculiarities. For example, the BIOS doesn't recognize
> the presence of a keyboard unless it's plugged into the PS/2 port. Once
> Linux comes up, it works just fine with my USB keyboard, so it's not a
> problem with the keyboard.
>
> Hoping to replace the guts with a Ryzen 7 motherboard. Could use the
> speed for other things I do.
>
> > Either that, or Kubuntu 18.04 is less stable than its
> > many predecessors, which I find difficult to imagine.  Still, the
> > trouble started when I upgraded from 16.04, so that may be the culprit.
> > So many things have changed it's more trouble than it's worth to me to
> > try to keep track of any of it.
>
> Well, in my experience, upgrading from Ubuntu 16 to Kubuntu 18 was a big
> hairy problem. For instance, after upgrade and restart, no working
> network. I reinstalled fresh.
>
> > I had gotten in the habit of just buying a retail desktop PC off the
> > shelf, but you can't buy those anymore.  Getting Linux onto a retail
> > Windows PC is a huge pain in the ass anyway.
>
> In my experience, only if you want to keep Windows around.
>
> > I guess I have to go
> > figure out what components to buy and roll my own like it's 1995.  I am
> > not looking forward to this at all.
> Well, putting Linux on my wife's retail laptop PC that came with Windows
> on it worked just fine. Dell, Lenovo, HP apparently work. Only
> ointment-infestation I can imagine might be support for fancy new
> graphics cards?
>
> At the moment, I like Asus motherboards. My wife's laptop and the mobo
> in my backup desktop machine just work with Linux.
>
> Since my present laptop experiences a few issues (doesn't think it has a
> battery, takes 3-5 minutes before the built-in display shows the POST
> screen) due to having been dropped a few times, I'm thinking of jumping
> to a Dell 15"/4K HDR display and Intel processor.
>
> Looking for hardware that won't leave me crawling when I move to a
> 42mpixel camera and get to start making big panoramas.
>
> --
> David W. Jones
> gn...@hawaii.rr.com
> authenticity, honesty, community
> http://dancingtreefrog.com
>
>
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-- 
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http://netti.nic.fi/some-e
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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread david

On 4/7/19 9:56 PM, Will Godfrey wrote:

On Thu, 28 Mar 2019 22:18:27 -0400
Ted Felix  wrote:


On 3/28/19 6:24 PM, Will Godfrey wrote:

Not forgotten this - just busy firefighting yoshimi :(


   No problem.  I've been working my way through everything valgrind is
showing me to see if I can find your crashes.  Nothing yet.  Lots of
memory leaks, but nothing crashy.


I'm afraid I've still not had time to do anything with this - not fired up the
DAW at all lately - to much other stuff getting in the way :(

However, I think I can pin down the sequence of events a bit better.

I'll have several verses on a recorded over 3-4 tracks, and decide I want to
add a counter melody to verse 2. I'll actually start the recording a verse
ahead and begin to play near the end of that verse to get in the grove and timed
right, going on into the wanted verse.

When I stop, I'll wind back, cut the track by time, and delete the unwanted
preamble. Next I'll want to go into the 'good' bit to do some fine tuning, and
that's is the point when the crash happens. My guess is that the delete
operation has left an invalid pointer somewhere.


Mine would happen when I cut off the end of a segment and deleted it, 
then tried to edit the rest of the segment.



However, if *immediately* after doing the delete, I save the file it seems to
sort everything out and is then OK.


Hmm, never tried that. My general practice with saving things is, "If 
something got messed up, don't risk saving something mangled over the 
'good' version I had before!" :)


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David W. Jones
gn...@hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com


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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread David W. Jones



On April 9, 2019 1:49:22 AM HST, Sami Jumppanen  
wrote:
> Out of curiosity, what is the problem?
> 
> 
> > >I had gotten in the habit of just buying a retail desktop PC off
> the
> > >shelf, but you can't buy those anymore.  Getting Linux onto a
> retail
> > >Windows PC is a huge pain in the ass anyway.  I guess I have to go
> > >figure out what components to buy and roll my own like it's 1995. 
> I am
> > >not looking forward to this at all.
> >
> 
> - Buy a computer
> - Put in another hard drive, I bought a cheap SSD
> - (Unplug the supplied Windows drive if you're not going to use it for
> now)
> - Install Linux
> 
> I did find the new Linux installer (with Ubuntu Studio) a bit strange.
> It
> seemed all logical with empty HDD, but when having another HDD in the
> computer with Ubuntu Studio, the installer says there were no other OS
> found and logical volume management options and all the talk of
> deletion
> look strange or scary :D
> 
> I am using now a 2006 era dual core and everything looks ok. Maybe the
> newest computers bring new problems?
> 
> Sami

My wife's Asus is 2014 or 2015. Booted it from a USB stick, got to see all the 
lovely partitions Window 10 scattered all over the drive. Xubuntu 18.04 
installed over it with no problems.

That wasn't Ubuntu Studio. Maybe they're behind the times?

--
David W. Jones
gn...@hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com

Sent from my Android device with F/LOSS K-9 Mail.


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Re: [Rosegarden-user] Crashes :(

2019-04-10 Thread david

On 4/8/19 10:37 PM, D. Michael McIntyre wrote:
I haven't tested the timing thing either.  My computer keeps freezing. 
When I reboot it, I'm stuck at 1024x768, and the only way I have managed 
to make progress on that issue is to reinstall Kubuntu.  I've been 
around that bush three times now, and I have grown tired of the 
aggravation.  This machine is rather old, and I suspect the hardware is 
just flaking out.


My main desktop/server, also rather old, finally died. The onboard video 
went first. Then the machine just quit coming up at all.


The backup desktop/server still works. It's "newer" than the dead main 
one, but has some peculiarities. For example, the BIOS doesn't recognize 
the presence of a keyboard unless it's plugged into the PS/2 port. Once 
Linux comes up, it works just fine with my USB keyboard, so it's not a 
problem with the keyboard.


Hoping to replace the guts with a Ryzen 7 motherboard. Could use the 
speed for other things I do.


Either that, or Kubuntu 18.04 is less stable than its 
many predecessors, which I find difficult to imagine.  Still, the 
trouble started when I upgraded from 16.04, so that may be the culprit. 
So many things have changed it's more trouble than it's worth to me to 
try to keep track of any of it.


Well, in my experience, upgrading from Ubuntu 16 to Kubuntu 18 was a big 
hairy problem. For instance, after upgrade and restart, no working 
network. I reinstalled fresh.


I had gotten in the habit of just buying a retail desktop PC off the 
shelf, but you can't buy those anymore.  Getting Linux onto a retail 
Windows PC is a huge pain in the ass anyway.


In my experience, only if you want to keep Windows around.

I guess I have to go 
figure out what components to buy and roll my own like it's 1995.  I am 
not looking forward to this at all.
Well, putting Linux on my wife's retail laptop PC that came with Windows 
on it worked just fine. Dell, Lenovo, HP apparently work. Only 
ointment-infestation I can imagine might be support for fancy new 
graphics cards?


At the moment, I like Asus motherboards. My wife's laptop and the mobo 
in my backup desktop machine just work with Linux.


Since my present laptop experiences a few issues (doesn't think it has a 
battery, takes 3-5 minutes before the built-in display shows the POST 
screen) due to having been dropped a few times, I'm thinking of jumping 
to a Dell 15"/4K HDR display and Intel processor.


Looking for hardware that won't leave me crawling when I move to a 
42mpixel camera and get to start making big panoramas.


--
David W. Jones
gn...@hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com


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