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Ubuntu 12.04 LTS "Precise Pangolin" releasedUbuntu 12.04 LTS "Precise Pangolin" releasedPosted May 1, 2012 10:57 UTC (Tue) by nye (guest, #51576)In reply to: Ubuntu 12.04 LTS "Precise Pangolin" released by mathstuf Parent article: Ubuntu 12.04 LTS "Precise Pangolin" released
>> I've not yet met a system using Intel graphics which doesn't need the screen resolution to be set manually in xorg.conf.
> I have a desktop (19" 1440x900 monitor) and netbook (9" 1024x600) with Intel graphics that have never needed an xorg.conf for anything.
Interesting - does that also hold for GDM/KDM/WhateverDM, or do you not use one? Did it need any special kind of configuration?
In fact I can use KDE's system settings to configure the right resolution each time I log in, rather than writing an xorg.conf from scratch, but that doesn't help for the login manager so I wonder if there might be a way to configure that.
This was all so much easier in the days when all you had to do was uncomment the right line in the provided XF86Config.
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Ubuntu 12.04 LTS "Precise Pangolin" released Posted May 1, 2012 18:39 UTC (Tue) by dlang (✭ supporter ✭, #313) [Link]
for at least some versions of KDE there is a bug that causes it to loose it's monitor settings each boot. This is not a kernel/driver problem, strictly a KDE problem
Ubuntu 12.04 LTS "Precise Pangolin" released Posted May 2, 2012 11:28 UTC (Wed) by nye (guest, #51576) [Link]
The problem I'm talking about is not specific to KDE. KDM simply uses the auto-detected resolution which is always wrong if I don't have an xorg.conf.
I can live with it since I don't re-log very often and I haven't motivated myself to write the xorg.conf yet. On the one system I have that's running Gnome though I couldn't figure out how to set the resolution (it comes with what seems to be a preconfigured list of useless options) so there I did have to resort to writing an xorg.conf.
Note that at least one machine detected the resolution correctly on 2.6.32, but no kernels I've tried before or since.
I haven't tried any kernel versions that are particularly recent since the rate of regressions in Linux has conditioned me to upgrade only when it's completely unavoidable.
(And as for monitor *hotplugging* in KDE...that's a pretty guaranteed way to render this laptop non-responsive and require a power cycle)
Ubuntu 12.04 LTS "Precise Pangolin" released Posted May 2, 2012 13:51 UTC (Wed) by nye (guest, #51576) [Link]
>Note that at least one machine detected the resolution correctly on 2.6.32, but no kernels I've tried before or since.
Actually now that I think about it, I believe it was 2.6.26 which worked. Before that was probably the era of massive breakage, and from there I skipped to 2.6.29 which was apparently when KMS was introduced for Intel, which seems a likely candidate for the breakage.
Ubuntu 12.04 LTS "Precise Pangolin" released Posted May 2, 2012 16:09 UTC (Wed) by mathstuf (subscriber, #69389) [Link]
Sounds like the modelines aren't being detected properly and you may be getting vesa's standard list of resolutions. What model is it? Mine are an X4500 HD and some mobile chip I can't remember off the top of my head (it's a System76 machine).
Ubuntu 12.04 LTS "Precise Pangolin" released Posted May 10, 2012 13:15 UTC (Thu) by nye (guest, #51576) [Link]
>What model is it?
The two I currently have access to are an Atom integrated system with an 'N10 Family Integrated Graphics Controller', and a more standard laptop with a 'Mobile GM965/GL960 Integrated Graphics Controller'.
Those don't really mean a great deal to me, to be honest. I just know that they're both very low-performance and seemingly not brilliantly supported.
Ubuntu 12.04 LTS "Precise Pangolin" released Posted May 1, 2012 19:05 UTC (Tue) by mathstuf (subscriber, #69389) [Link]
These days I use "exec startx" from a TTY, but when I did use a login manager (only KDM AFAIR), I don't remember any issues (KDE 4.2.x to KDE 4.4.x before I stopped using KDE on the Intel machine). An older netbook was the same way (since donated). My current netbook has never run KDM.
Ubuntu 12.04 LTS "Precise Pangolin" released Posted May 1, 2012 19:29 UTC (Tue) by dlang (✭ supporter ✭, #313) [Link]
I started running into the issue about a year ago when I switched to a multi-monitor setup and discovered that every boot I had to reconfigure the monitors. I did some searching and discovered that it was a known KDE problem with no documented fix.
It doesn't require you to use KDM, it's a problem in the KDE screen management after KDE starts.
Ubuntu 12.04 LTS "Precise Pangolin" released Posted May 1, 2012 19:56 UTC (Tue) by mathstuf (subscriber, #69389) [Link]
I've noticed that KDE's RandR configuration tool is…oddly behaved at times (even recently when helping a coworker set up 3 monitors). The command line is much better for RandR configuration (I've found no GUI that is faster to get what I want or more convenient) and I have a script in ~/.config/xinit which gets sourced to set up rotation and positioning upon login (no modeline commands though, just relative placement).
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