I haven't really noticed any change in the appearance of SL 7.6 from SL
7.5, so I can't really comment on what changed for you, then seemed to
change back.
As for the freezing issue, I've noticed that the xorg-x11 updates in
late November introduced a number of bugs and instabilities. The most
prominent of these was on our Radeon chipsets, which started to
experience crashes and freezes, although only intermittently. If you
have Radeon graphics adapters in your systems, you may want to try this fix:
Create a file called /etc/X11/xorg.conf.d/20-ati-radeon.conf with this
content:
Section "Device"
Identifier "Radeon"
Driver "radeon"
Option "AccelMethod" "exa"
Option "DRI" "2"
EndSection
This disables the glamor acceleration and DRI 3 on radeon chipsets,
which have been problematic since the
xorg-x11-server-Xorg-1.20.1-5.1.sl7 update. There are still some odd
issues, including frequent crashes of the Xorg server when you logout,
but for the most part things are now pretty stable and reliable with the
fix above on our radeon systems.
I've also noticed intermittent freezes on an nVidia GTX-1050 system, but
these problems didn't disappear when I downgraded both the xorg server
version and the kernel version to pre-late-November releases, so I'm
starting to suspect a hardware issue on that system.
If the freezing is affecting more than just the X Window display on the
console, there could be other issues at play for your system that I
haven't encountered here.
Gilles
On 1/29/19 5:33 PM, [email protected] wrote:
Dear Gilles,
Thank you for your email. I understand that and I also believe it is
unlikely that SL automatically downgraded by itself from 7.6 to 7.5.
Still, when I moved from 7.5 to 7.6 SL looked really different and my
freezing issue disappeared. Then after one day it went back (at least
the exterior appearance) to the previous version and this issue came
back. So I don't know exactly what happened, but something changed and
this current version lookes identical to SL 7.5.
Many thanks,
Stefano
-------- Messaggio originale --------
Oggetto: Re: issues with migrating to SL 7.6
Da: Gilles Detillieux
A: "S. Vergani" ,John Pilkington
CC: [email protected]
Hi, Stefano.
Don't pay too much attention to the SL version number in the grub2
boot
menu. These labels are set when the kernel is installed or
updated, and
don't necessarily reflect the SL version you're currently running. If
you updated the kernel to the latest version (3.10.0-957.1.3.el7)
before
upgrading from 7.5 to 7.6, there would not have been any further
kernel
upgrade during the 7.6 upgrade, so no update to the grub2 menu. All
you're choosing from the boot menu is a particular version of the
kernel, and kernel versions are more or less independent of the SL
release number (or at least the minor version number). Any
"3.10.*.el7"
kernel version should work with any SL 7.* release.
The more important indicator is the value in the file
/etc/yum/vars/slreleasever. If it's 7.6 or 7x, then yum will grab the
latest SL 7.6 updates and you should be fine. If it's gone back to
7.5
for any reason, then you may have a problem requiring another
attempt at
upgrading to 7.6. But even so, it's highly unlikely that all the RPM
package that got installed during the 7.6 upgrade got downgraded
to the
7.5 versions, as yum doesn't usually downgrade unless explicitly
told to.
Gilles
On 2019-01-29 04:14, S. Vergani wrote:
> Dear John,
>
> thank you very much for your help. I tried the "magic spelling" the
> post suggested, but nothing happened. This is such a weird
issue, the
> first day SL 7.6 was completely different and when I shut down I
> somehow downgraded back to 7.5 even if now it still says I am
running
> SL 7.6 but in boot phase I can choose only SL 7.5.
>
> Regarding the overnight freezes, I have been fighting against it
> forever. It happens in every situation, simply every time I clik
> "restart" or I close the pc without locking it, it freezes forever.
> This started when I upgraded from SL 7.4 to 7.5. Before that, it
was
> perfect. Apparently, the issue was solved upgrading to SL 7.6
but now
> this second issue kicked in.
>
> Do you have any other suggestion?
>
> Many thanks,
>
> Stefano
--
Gilles R. Detillieux E-mail:
Spinal Cord Research Centre WWW:
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.scrc.umanitoba.ca_&d=DwIDaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=YIIUliuVLnLqaWtQUsfOj0LcDfYx0RFwPH4EGu1U6WM&s=Uy3_rwlYdoBhIgddCOpp0SBNO7-nb_woHp6FveemFOw&e=
Dept. of Physiology and Pathophysiology, Faculty of Health Sciences,
Univ. of Manitoba Winnipeg, MB R3E 0J9 (Canada)
--
Gilles R. Detillieux E-mail: <[email protected]>
Spinal Cord Research Centre WWW:
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.scrc.umanitoba.ca_&d=DwIDaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=YIIUliuVLnLqaWtQUsfOj0LcDfYx0RFwPH4EGu1U6WM&s=Uy3_rwlYdoBhIgddCOpp0SBNO7-nb_woHp6FveemFOw&e=
Dept. of Physiology and Pathophysiology, Rady Faculty of Health Sciences,
Univ. of Manitoba Winnipeg, MB R3E 0J9 (Canada)
