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[Linrad] Re: Ubuntu 8.10
- Subject: [Linrad] Re: Ubuntu 8.10
- From: wi7p <emeshack.com; wi7p@xxxxxxxxxxxxxxxx>
- Date: Sat, 29 Nov 2008 11:14:27 -0800 (PST)
What are your current platforms?
I would like to know what Linux distribution and release you are using
On Nov 23, 8:23 pm, Joe Taylor <j...@xxxxxxxxxxxxx> wrote:
> I like to have stable O/S installations in both Windows and Linux that I
> can use both for program development and for operating. I tend to stay
> with these installations, essentially unchanged, for at least several years.
> Because it's relevant to discussions that have taken place on the WSJT
> developers reflector, I am copying this message to that forum, as well.
> -- 73, Joe, K1JT
> Leif Asbrink wrote:
> > Hi Roger,
> > You have solved the problem:-) My Ubuntu 8.10 installation had
> > 'Visual Effects' set to 'Normal'. That was the reason for
> > abnormal behaviour.
> > I have now set visual effects to 'None' and now the computer
> > has normal behaviour and seems to run as well as with other
> > distributions. (I have not analyzed timing issues in detail.)
> > Thank you Roger:-)
> > --- 0 ---
> > According to public media here in Sweden it seems like the
> > leading distributions are:
> > 1)Ubuntu
> > 2)Fedora
> > 3)Opensuse
> > 4)Mandriva
> > I am using Debian for my daily work, and I have now tested
> > Ubuntu 8.10 and Mandriva 2009 (the most recent ones) Both of
> > them (now) run well although I was not able to change the
> > numbering of my soundcards under Mandriva. ALSA is different
> > there somehow.
> > I will test Fedora and Opensuse also.
> > Is there anyone on this list who prefers another distribution
> > than the five mentioned? Slackware, Gentoo, CentOS or something
> > else? If you post a message to this list about why you prefer it
> > I will install it on my multi-partition hard disk and try to
> > install Linrad on it to see if there are any surprises...
> > 73
> > Leif / SM5BSZ
> > On Sun, 23 Nov 2008 09:43:03 -0500
> > w3sz <w...@xxxxxxxxxxx> wrote:
> >> What follows may or may not be germane to the issue you describe.
> >> I found that an earlier version of Ubuntu [8.04] installed, by
> >> default, here with 'Appearance' extras selected that caused no problem
> >> on 'modern' Core2Duo machines but which brought to its knees an old
> >> Pentium III that I ran remotely via VNC and using the Gnome desktop.
> >> The atrocious refresh and HID delays disappeared when I changed the
> >> 'appearance
> >> enhancements' to 'none' by clicking on 'System' then 'Preferences'
> >> then 'Appearance' then "Visual Effects', and then clicking to select
> >> the 'None' radio button.
> >> I found that neither 'Normal' or 'Extra' settings of the 'Visual
> >> Effects' gave satisfactory performance when the VNC server was active
> >> on this old, slow machine. With the setting of 'None', everything
> >> works acceptably.
> >> Check your 8.10 install and see if something other than 'None' is
> >> selected. If so, select 'None', then recheck your CPU utilization. I
> >> would also suggest rebooting and then checking it again after making
> >> the change from either 'Normal' or 'Extra' to 'None'.
> >> Because you report that 8.04 did not exhibit porcine CPU behavior for
> >> you, this issue may not be related to your problem. On the other
> >> hand, it is possible that the 'default' settings of 'Visual Effects'
> >> have not remained constant throughout the lifetime of 8.04, and that
> >> your default install settings for 8.04 were not identical to mine,
> >> thus preventing you from seeing the problem
> >> with 8.04.
> >> If the above issue is NOT germane to the problem you described, please
> >> accept my apologies for the bandwidth.
> >> 73,
> >> Roger Rehr
> >> W3SZ
> >> Quoting Leif Asbrink <l...@xxxxxxxxxx>:
> >>> Hi All,
> >>> The latest version of Ubuntu is extremely CPU hungry when
> >>> used with X11. Just running the system monitor loads the
> >>> CPU with 20%. Xorg, the X11 server uses 15% and the system
> >>> monitor uses 4%.
> >>> Debian unstable which has the same system monitor uses
> >>> 6% for Xorg and 4% for the system monitor.
> >>> Debian stable uses the older system monitor which is far less
> >>> CPU hungry. It moves the curves horizontally step-wize and
> >>> uses 4% for Xorg and only 1% for the monitor itself.
> >>> The above numbers are for a 2.6GHz Pentium IV.
> >>> The very high load caused by the X11 server may make it necessary
> >>> to increase the output delay margin and to decrease the max
> >>> DMA rate.
> >>> I would recommend Ubuntu 8.04 or any other Linux distribution
> >>> if you want to run Linrad under X11.
> >>> In case you love Ubuntu 8.10 for some reason, download
> >>> svgalib1925-1.tbz from here:
> >>> The modified svgalib-1.9.25 package will compile under
> >>> Ubuntu 8.10
> >>> Press Ctrl Alt F1 to get into terminal mode and run Linrad
> >>> from there (do not forget sudo.) Ubuntu 8.10 runs at full speed
> >>> With svgalib in terminal mode:-)
> >>> 73
> >>> Leif / SM5BSZ
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