On Sat, 28 Apr 2012 16:35:11 +0900, Han Soo Chang wrote:
> I might have made a slight advance.
>
> I added an option ChipID 1002:6779 to designate my card (Radeon HD 7450)
> to be identical with Radeon HD 6450.
Let's don't make guesses ;-) better send/copy your current "/etc/X11/
xorg.conf" file so we can see what you have added and how it looks like
now.
> Then, I got the following /var/log/Xorg.0.log, which says that "DRI
> initialization failed. kernel module (fglrx.ko) may be missing or
> incompatible.
> 2D and 3D acceleration disabled."
>
> Actually, lsmod | grep fglrx shows nothing.
>
> aptitude search fglrx-driver shows that the driver is installed.
>
> Am I trying to use in vain a card that is not supported?
(...)
> [ 13.076] (**) fglrx(0): NoAccel = NO
> [ 13.076] (**) fglrx(0): ATI 2D Acceleration Architecture enabled
> [ 13.076] (--) fglrx(0): Chipset: "AMD Radeon HD 7400 Series" (Chipset =
> 0x677b)
2D capabilities are enable without hassle and the chipset seems to be
properly detected.
> [ 13.666] (EE) fglrx(0): atiddxDriScreenInit failed, GPS not been
> initialized.
> [ 13.666] (WW) fglrx(0):
> ***********************************************************
> [ 13.666] (WW) fglrx(0): * DRI initialization failed
> *
> [ 13.666] (WW) fglrx(0): * kernel module (fglrx.ko) may be missing or
> incompatible *
> [ 13.666] (WW) fglrx(0): * 2D and 3D acceleration disabled
> *
> [ 13.666] (WW) fglrx(0):
> ***********************************************************
(...)
> [ 13.885] (II) AIGLX: Screen 0 is not DRI capable
> [ 13.885] [glesx] __glESXExtensionInit: No GL ES2.0 capable screen found!
And here it comes the error. The card's accel is disabled and that's
why you experience a sluggish screen :-/
Just to discard something obvious, do a search for the module
("locate fglrx.ko") and check if it's indeed there, although I don't
think that's the problem, as the module should have been compiled
alongside with the rest of the files just fine. It can be also a bug
in the driver, I've seen some reports by Googling around, for instance:
http://devgurus.amd.com/thread/158718
Maybe is worth for you to report it in Debian BTS or better yet, first
ask for further suggestions at "debian-backports" mailing list.
Greetings,
--
Camaleón
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