Comment 40 for bug 137234
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#40 |
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73416ba
(Get the code!)
My laptop was back from warranty after more than two months. I have tested both the driver currently in ubuntu intrepid (2.4.1) and the git version (2.5.96) - the latter required me to install git libdrm.
Using both drivers, I don't get any output from secondary monitor. However, with 2.4.1 (the older version) if I connect the cable before system power on I get both outputs correctly, even tough the primary LCD panel of the laptop is much less bright than ordinary (don't know why). There are other bugs, but this is sufficient to give a talk if one remembers to boot with vga connected.
Using the latest git version of the driver, if I connect vga before boot, I only see the secondary monitor and there is no way to view the integrated LCD panel of the laptop.
I am going to attach the output from xrandr and the server log in the latter case (xrandr shows that the laptop LCD panel is not detected at all).
From what I can see (e.g. screen blinking sometimes) the problems with second display not enabled when the cable is NOT connected at boot time are related to wrong frequencies - maybe there is some number calculation error in the driver itself?