After some more experimenting with different versions, I'm getting odd
results. So feel free to ignore this report..
FYI, what I see is:
* as noted, commits before bb6355 work fine (ie up to 3.4-rc6).
* including commit bb6355, graphics freeze on the first transition after
grub (Plymouth?)
* the very next commit makes the (plymouth?) splash screen work, but the
greeter screen display is corrupted; ctrl-alt-f2 works - if pressed
immediately
* this situation continues up until release v3.5^. But building v3.5
itself works perfectly! Presumably I've done something wrong here..
* v3.6-rc3 displays the splash (plymouth?) screen fine, but instead of a
greeter screen, screen goes blank.
I'll try to make some more sense of this in the next few days - but
suggestions are welcome.
Sorry if I'm posting this in the wrong place - let me know if I should
create a bugzilla entry or whatever.
Regards,
Simon
On 25/08/12 19:39, Hausensteiner Keg wrote:
Hi,
I updated the kernel on an Ubuntu 12.04 (32-bit) install, and graphics
immediately broke. Bisection points to:
commit bb635567291482a87e4cc46e6683419c1f365ddf
Author: Jerome Glisse <jglisse@xxxxxxxxxx>
Date: Wed May 9 15:34:46 2012 +0200
drm/radeon: convert fence to uint64_t v4
Radeon graphics are still broken for me in both 3.5.2 (from
linux-stable) and 3.6.3-rc3 - though the symptoms appear to be
slightly different.
I'm currently running a kernel built from the commit before the above,
and everything seems sane and stable.
I'm happy to do any tests you might find helpful..
== Symptoms
When booting with above commit, grub works fine but immediately upon
attempt to switch graphics mode a solid green bar appears across the
screen. System does not respond to ctrl-alt-f2. Very repeatable.
When booting with later releases (eg 3.5.2), the greeter screen is
displayed - sometimes correctly, sometimes with minor graphics
corruption. Immediately switching to a virtual terminal works. However
any attempt to move the mouse or log in via the greeter screen causes
graphics corruption and system no longer responds. Also consistently
repeatable.
== OS details:
Ubuntu 12.04 32-bit (default kernel 3.2.0-29).
== System details:
HP/Compaq nc8430 laptop
$glxinfo | grep renderer ==> OpenGL renderer string: Gallium 0.4 on
ATI RV530
$ lsmod | grep radeon
radeon 815703 3
ttm 71375 1 radeon
drm_kms_helper 32563 1 radeon
drm 220833 5 radeon,ttm,drm_kms_helper
i2c_algo_bit 13197 1 radeon
$ lspci | grep VGA
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee
ATI M56P [Radeon Mobility X1600]
$ xrandr
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 8192 x 8192
VGA-0 disconnected (normal left inverted right x axis y axis)
LVDS connected 1680x1050+0+0 (normal left inverted right x axis y
axis) 331mm x 207mm
1680x1050 60.1*+
1400x1050 60.0
1280x1024 59.9
....
Regards,
Simon
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