On Mon, 21 Oct 2002, Ben Hsu wrote: >Date: Mon, 21 Oct 2002 18:48:04 -0700 (PDT) >From: Ben Hsu <ben_hsu@yahoo.com> >To: psyche-list@redhat.com >Content-Type: text/plain; charset=us-ascii >List-Id: Discussion of Red Hat Linux 8.0 (Psyche) <psyche-list.redhat.com> >Subject: Unable to start X > >Hello all, > >I installed Psyche on a Dell Dimension 2300. During boot >Linux detects the graphics adapter as an Intel 845G. My >monitor is a Samsung 570V. > >I cannot start X during the installation or after it. I've >tried running 'redhat-config-xfree86' and 'X -probeonly' >and they all came back with the same result: they all >say "Screen(s) found but none are usable". > >The XFree86.0.log file shows that the i810 module lists >a bunch of graphical modes, then X unloads the modules and >exits with the above error message. It does not explicitly >say whether any of these modes were rejected > >Has anyone seen this before? XFree86 does not officially support Intel i845 video yet in any officially released version. The XFree86 4.2.0-72 that comes with Red Hat Linux 8.0 contains a backport I did of some initial code from CVS to work with the i845. Having no Intel hardware myself, the backport was untestable, however it went into our beta releases, and some users reported that it worked for them better than nothing at all. SInce the code changes were not invasive and did not affect the code paths of other hardware supported by the i810 driver, I opted to leave the patch in, hoping that some users would benefit from it rather than have no working video at all. To date, feedback from users shows that it works for some users, but only in certain resolutions and/or color depths. I do not have any details, and cannot offer any help at all with attempting to configure or use i845, but some other user who has gotten it working might be able to assist. Note that the driver is 2D only if you can get it working, so be sure to disable DRI. Another option is to try the "vesa" driver, however most users have told me that the vesa driver is useless for i845. Another out of the box option that might or might not be possible, is to use the kernel framebuffer, and use fbdev driver in X. Details for doing this are covered in the Framebuffer-HOWTO available online. Aside from that is the "vga" driver which even if it worked bug free will be unaccelerated, low res, crappy color, and generally useless IMHO. The above are all of the possible out-of-the-box ideas that I can muster. XFree86 developmental CVS has a rewritten i810 driver which has both 2D, and 3D support for i845, as well as fixing up various issues that users have reported about the prior driver. This code is not even in "beta" form yet, and is very highly developmental. Also, although 3D is supported, it wont work without a bit of mucking around currently (and I don't have time to go into details about it). If your machine requires working video, and you're willing to accept non-production XFree86 code which may contain numerous bugs and problems, you can try upgrading to my latest XFree86 developmental RPM snapshots. They are available at: ftp://people.redhat.com/mharris/testing/live-grenades The above developmental RPM's are the work-in-progress which will end up becoming XFree86 4.3.0 sometime later this year, and will likely be first introduced to Red Hat Linux users officially in the next Red Hat Linux release. I will be keeping these RPMs updated and tracking CVS between now and then. Be sure to read the readme documents present in those directories as they contain further information. Also, please do not ask me for specific help via email as I'm unable to provide individual assistance to people using the experimental releases. If you encounter problems, please report them to the xpert@xfree86.org mailing list first, and then in Red Hat bugzilla and include any feedback the mailing list gave you about your problem. Another useful URL: http://www.xfree86.org/~dawes/845driver.html I hope this info is helpful to all i845/i830/i830m/i815/i810 users. Please pass the info along to other mailing lists, and other people you know of having similar problems. Take care, TTYL -- Mike A. Harris ftp://people.redhat.com/mharris OS Systems Engineer XFree86 maintainer Red Hat Inc. -- Psyche-list mailing list Psyche-list@redhat.com https://listman.redhat.com/mailman/listinfo/psyche-list
