Messages in this thread | | | Date | Thu, 24 Mar 2011 12:30:49 +0100 | Subject | regression: GM45 on Dell Latitude E6400 display from 1440x900 to 1024x768 somewhere between 2.6.38-git2 and -git7 | From | Alessandro Suardi <> |
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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"
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