VGA not detected on a Lenovo T420
With the following steps I succeeded to get the Lenovo T420 intel graphic running properly:
sudo apt-get install linux-image-generic-lts-backport-natty linux-headers-generic-lts-backport-natty
Then just change the following line in your /etc/default/grub
(edit as root!)
GRUB_CMDLINE_LINUX_DEFAULT="quite splash"
to
GRUB_CMDLINE_LINUX_DEFAULT="quite splash i965.modeset=1"
don't forget
sudo update-grub
and of course a reboot!
You often can read something about 'i915...' but this seems to be for older Intel graphics (compatibility issues?). I found (somewhere?) the device code for the Intel HD 3000 which is i965.
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user32065
Updated on September 18, 2022Comments
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user32065 over 1 year
I have problem with a VGA driver that is not detected on my Lenovo T420 with Ubuntu. 10.04
Output of
lshw
:*-display UNCLAIMED description: VGA compatible controller product: Intel Corporation vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: bus_master cap_list configuration: latency=0 resources: memory:f0000000-f03fffff memory:e0000000-efffffff(prefetchable) ioport:5000(size=64)
This is output from
lspci -nn
:00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:0116] (rev 09)
When I install version 11 for testing it can detect the drivers:
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)
*-display description: VGA compatible controller product: 2nd Generation Core Processor Family Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:42 memory:f0000000-f03fffff memory:e0000000-efffffff ioport:5000(size=64)
On Ubuntu 10.04, I tried to install the
xserver-xorg-video-intel
driver but I'm still unable to get the right resolution on my display.I've already tried the suggestion on Display not detected on a Thinkpad T420, but still no luck.
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user32065 over 12 yearssorry on 10.04 this is the output: *-display UNCLAIMED description: VGA compatible controller product: Intel Corporation vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: bus_master cap_list configuration: latency=0 resources: memory:f0000000-f03fffff memory:e0000000-efffffff(prefetchable) ioport:5000(size=64)
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Lekensteyn over 12 yearsNo need to comment it twice, just edit it in and add a single comment so I get notified. Perhaps the older kernel does not support your newer hardware, install the newer version (11.10) unless you really do not want to.
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mckenzm over 2 yearsA bit late now, but would have been nice to know either way if this was an Optimus equipped T240, and your BIOS settings. You may have been on dedicated NVidia.
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user32065 over 12 yearshi, thanks for your reply, i got the driver updated name but there is no (configureation:driver=i915 latency=0). it still not detect the driver. any sugguestion please.
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user32065 over 12 years*-display UNCLAIMED description: VGA compatible controller product: 2nd Generation Core Processor Family Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: bus_master cap_list configuration: latency=0 resources: memory:f0000000-f03fffff memory:e0000000-efffffff(prefetchable) ioport:5000(size=64)
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user32065 over 12 yearsfrom my basic understanding, Intel VGA should create this file: /etc/X11/xorg.conf, i try to locate it on my system it's not there.
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Lekensteyn over 12 years@user32065
/etc/X11/xorg.conf
does not have to exist, settings are automatically detected. -
user32065 over 12 yearswhat i did i upgrade to kernel 2.6-35.30, it's booting and last screen before login i got black screen. i reboot and enter grup mode, i issue the lshw -C to check the driver and it's exist this time, the problem now i'm getting black screen and if i revert back to old kernel 32-34 i will not get the driver installed. any help please.
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Lekensteyn over 12 yearsTry upgrading from Lucid to Oneiric
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mckenzm over 2 yearsthat should be "quiet", not "quite".