Question

1

limited resolution with Intel graphics

rated 0 times [ 1] [ 0] / answers: 1 / hits: 2140 / 3 Years ago, sat, october 23, 2021, 1:18:19

My Dell laptop has an Intel Graphics HD 3000 driving a 1600x900 LCD. However, For some reason, Ubuntu 13.04 and 14.04 won't let me set the resolution above 1024x768. Can anyone offer any advice? Thanks!

$ lshw

<snip>

*-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: vga_controller cap_list

         configuration: latency=0

         resources: memory:f1400000-f17fffff memory:e0000000-efffffff ioport:5000(size=64)



$ xrandr

xrandr: Failed to get size of gamma for output default

Screen 0: minimum 800 x 600, current 1024 x 768, maximum 1024 x 768

default connected 1024x768+0+0 0mm x 0mm

   1024x768       61.0*

   800x600        61.0



# lspci -vvnnk

<snip>

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])

    Subsystem: Dell Device [1028:04c4]

    Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-

    Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

    Interrupt: pin A routed to IRQ 16

    Region 0: Memory at f1400000 (64-bit, non-prefetchable) [size=4M]

    Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]

    Region 4: I/O ports at 5000 [size=64]

    Expansion ROM at <unassigned> [disabled]

    Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-

            Address: 00000000  Data: 0000

    Capabilities: [d0] Power Management version 2

            Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)

            Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-

    Capabilities: [a4] PCI Advanced Features

            AFCap: TP+ FLR+

            AFCtrl: FLR-

            AFStatus: TP-

<snip>

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108M [GeForce GT 525M] [10de:0df5] (rev ff) (prog-if ff)

    !!! Unknown header type 7f

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3 Years ago

answered 3 Years ago panshow · Accepted Answer

After discovering recently that 14.04 was affected too, I did some more digging and discovered a few things:

Booting with nomodeset is the immediate cause of the problem; I only did this because the laptop in question wouldn't boot otherwise.

Booting with noacpi instead solved the video issue, but caused other problems. In particular, only one CPU was detected, when two (or four with HyperThreading) would otherwise be seen.

Booting with acpi_osi=Linux acpi_backlight=vendor instead fixed almost all of the problems; the only remaining issue was excessive fan noise.

Updating to the latest available BIOS (in combination with the previous bullet) gave me a complete solution.