Sorry to take so long getting back to this. The affected PC is usually
used as my media center but I've now been able to move it into my
testing suite so hopefully once 14.04.2 milestone testing is out of the
way I'll be able to respond more quickly and efficiently.
Regarding the screen corruption in Utopic I've now found that it does
eventually occur even running GNOME Classic but just much less
frequently than in a GNOME Shell session. This includes both the stock
Utopic kernel as well as the 3.16.7-031607-generic kernel Joseph
Salisbury requested I try.
So, moving on to Vivid for the moment - last night I installed Ubuntu
GNOME Vivid Alpha 2 and this AM I booted it using the
nouveau.config=NvMSI=0 boot parameter, then applied all available
updates, and it seems to be running GNOME Shell just fine with the
latest Vivid kernel using the nouveau driver:
lance@lance-AMD-desktop:~$ uname -r
3.18.0-13-generic
lance@lance-AMD-desktop:~$ sudo lshw -c video
[sudo] password for lance:
*-display
description: VGA compatible controller
product: C61 [GeForce 7025 / nForce 630a]
vendor: NVIDIA Corporation
physical id: d
bus info: pci@0000:00:0d.0
version: a2
width: 64 bits
clock: 66MHz
capabilities: pm msi vga_controller bus_master cap_list rom
configuration: driver=nouveau latency=0
resources: irq:21 memory:fb000000-fbffffff memory:e0000000-efffffff
memory:fc000000-fcffffff memory:80000000-8001ffff
So some recent kernel update in Vivid appears to have fixed this issue.
Is there still any point in trying the 3.18.5-031805-generic mainline
kernel?
For the next 5 or 6 days I'll be shifting my focus almost totally onto
14.04.2, in fact my next two tests on this hardware will be 14.04.1 with
the latest Trusty kernel and then 14.04.2 with the Utopic HWE.
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https://bugs.launchpad.net/bugs/1412602
Title:
No live DE in Vivid using nouveau w/GeForce 7025/nForce 630a
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