Public bug reported:
I am testing Wily on Kubuntu package set with SDDM display manager.
After upgrading Mesa packages from 10.6.3 to 11.0.0 I found that graphical
logon screen does not appear, and the system freezes with black screen,
non-blinking cursor and non-responding keyboard&touchpad
I disabled SDDM service in systemctl and could log in to text console.
Then I found that 'startx' command freezes the system as well.
In dpkg.log I found that Mesa packages were updated last, from v. 10.6.3 to
11.0.0.
I downloaded older versions from Ubuntu pool mirror and installed them by dpkg
-i.
After that, GUI operation was fixed, and I re-enabled SDDM and continue using
my system without more significant problems.
My system is Acer 1830T, made in 2010, CPU is Core i3-380UM with
integrated GPU (Westmere/Ironlake/Arrandale, reported as gen5 in
Xorg.0.log).
Please investigate and fix this issue. Please ask me if you need more
testing or more details.
** Affects: mesa (Ubuntu)
Importance: Undecided
Status: New
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which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1499055
Title:
Wily: Mesa 11.0 causes hang in Intel Xorg driver, reverting to 10.6.3
fixes
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