Description of problem: On a laptop (Acer Travelmate 230) with display on 845G chipset an attempt to configure a display "from scratch" makes only a black screen and s-c-d quickly returns with "no screens found". Xorg.setup.log (attached) reveals that an attempt to use "intel" driver falls flat on its face. Luckily this is an upgrade from FC6 where, "i810" driver, was used and with an "inherited" xorg.conf a display still works. It shows weird "colour effects" during a startup, making one think that it possibly already crashed, but eventually it works. BTW - a test with an old xorg.conf but with a driver replaced by "intel" ends up with the following: .... (II) intel(0): I2C bus "DVOI2C_B" removed. (II) intel(0): I2C bus "DVOI2C_E" initialized. (II) intel(0): detecting tfp410 (EE) intel(0): Unable to read from DVOI2C_E Slave 112. (EE) intel(0): tfp410 not detected got VID FFFFFFFF: from DVOI2C_E Slave 112. (II) intel(0): I2C bus "DVOI2C_E" removed. (II) intel(0): I2C bus "DVODDC_D" removed. (II) intel(0): EDID for output VGA (II) intel(0): Output VGA disconnected (EE) intel(0): No valid modes. .... (EE) Screen(s) found, but none have a usable configuration. Fatal server error: no screens found Version-Release number of selected component (if applicable): system-config-display-1.0.51-4.fc8 xorg-x11-drv-i810-2.1.1-7.fc8 How reproducible: always
Created attachment 275881 [details] Xorg.setup.log from a failed configuration attempt
Created attachment 275891 [details] working xorg.conf inherited from FC6
Created attachment 275901 [details] log from a working display with i810 driver
Created attachment 275911 [details] log from a failed test with "i810" driver replaced in xorg.conf by "intel"
BTW - possibly as a side-effect of the above anaconda immediately fails to start in a graphics mode; luckily an update proceeds without much fuss in a text mode.
What happens when you try to run X without any /etc/X11/xorg.conf whatsoever? Could you attach /var/log/Xorg.0.log for such test, please?
Created attachment 278961 [details] logs from a test with xorg.conf absent It does not happen very much beyond "Unable to locate/open config file" error. A fully expected after a failed setup "no screens found". I thought that I added such log too but it looks like that I forgot.
Driver bug, not s-c-d bug.
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