public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
* regression: GM45 on Dell Latitude E6400 display from 1440x900 to 1024x768 somewhere between 2.6.38-git2 and -git7
@ 2011-03-24 11:30 Alessandro Suardi
  2011-03-24 11:45 ` Chris Wilson
  0 siblings, 1 reply; 8+ messages in thread
From: Alessandro Suardi @ 2011-03-24 11:30 UTC (permalink / raw)
  To: linux-kernel

Fedora 14 x86_64

[   375.231] (II) intel(0): Integrated Graphics Chipset: Intel(R) GM45
[   375.231] (--) intel(0): Chipset: "GM45"

startx yields:

 2.6.38-git2 and earlier: correct 1440x900 display
 2.6.38-git3 through -git6: not tested due to kernel build errors
 2.6.38-git7 through -git14: wrong 1024x768 display with black bands at sides

Once in wrong mode, xrandr --fb 1440x900 --output LVDS1 --mode 1440x900
 helps return the screen to correct display, but:

 - background image is drawn incorrectly (like a 1440x900 correct one with a
    superimposed 1024x768 starting from upper left corner)
 - mplayer in full screen mode does not actually go full screen, but 1024x768

comparative Xorg logs and dmesg output for 2.6.38-git2 and -git14 available
 upon request; lspci -v says:

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series
Chipset Integrated Graphics Controller (rev 07) (prog-if 00 [VGA
controller])
	Subsystem: Dell Device 0233
	Flags: bus master, fast devsel, latency 0, IRQ 46
	Memory at f6c00000 (64-bit, non-prefetchable) [size=4M]
	Memory at e0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at ef98 [size=8]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
	Capabilities: [d0] Power Management version 3
	Kernel driver in use: i915
	Kernel modules: i915

00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset
Integrated Graphics Controller (rev 07)
	Subsystem: Dell Device 0233
	Flags: bus master, fast devsel, latency 0
	Memory at f6b00000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: [d0] Power Management version 3



thanks,

--alessandro

 "There's always a siren singing you to shipwreck"

   (Radiohead, "There There")

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2011-03-24 18:12 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-03-24 11:30 regression: GM45 on Dell Latitude E6400 display from 1440x900 to 1024x768 somewhere between 2.6.38-git2 and -git7 Alessandro Suardi
2011-03-24 11:45 ` Chris Wilson
2011-03-24 12:03   ` Alessandro Suardi
2011-03-24 12:27     ` Chris Wilson
2011-03-24 13:11       ` Alessandro Suardi
2011-03-24 13:30         ` [PATCH] drm/i915/lvds: Always return connected in the absence of better information Chris Wilson
2011-03-24 14:18           ` Alessandro Suardi
2011-03-24 18:12           ` [Intel-gfx] " Keith Packard

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox