[Intel-gfx] Fwd: Eyestrain problems with new Intel drivers

[Janus]

On Thu, Apr 01, 2014 Felix Miata wrote:
> On 2014-03-31 10:05 (GMT+0200) Janus composed:
>> I have the same problem as the one described by Michael bellow: the
>> Intel Graphic card produces eye strain and headache after some minutes
>> of using it. I found a lot of people complaining on the same problem,
>> but no solution. I tried lowering the resolution, increasing the PWM
>> frequency, but without luck. I also installed an old version of intel
>> drivers (2.20.12), because the subject of this email was "with **new**
>> Intel drivers", but it didn't help.
>>
>> I have a new HP Folio 9470m, with the Intel HD 4000 graphic card, and
>> I cannot use it. Even when connecting an external monitor, I have the
>> same problem. When I connect my old laptop, with an nvidia card, to
>> the same monitor, the eyestrain disapear, so it must be the Intel
>> card, or its driver.
>>
>> I will be glad to provide any information you consider relevant. I can
>> do whatever test you want, but please, do not ignore this message. I
>> am not the only one to have this problem:
>> https://www.google.com/search?q=Eye+strain+Intel+graphic
>>
>> I am on (Arch) Linux, but I saw some reports on Windows too.
>
> What is output from 'lspci | grep VGA'?

$ lspci -v -s 00:02.0
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device 18df
Flags: bus master, fast devsel, latency 0, IRQ 49
Memory at d0000000 (64-bit, non-prefetchable) [size=4M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 2000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915

> Exactly what model is your external display?

It is an HP ZR2440w connected through the DisplayPort output of the
Docking Station (HP UltraSlim Docking Station).

$ xrandr --verbose
[...]
DP1 connected primary 1920x1200+0+0 (0xf7) normal (normal left
inverted right x axis y axis) 518mm x 324mm
    Identifier: 0x46
    Timestamp:  25911732
    Subpixel:   unknown
    Gamma:      1.0:1.0:1.0
    Brightness: 1.0
    Clones:
    CRTC:       0
    CRTCs:      1 0 2
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter:
    EDID:
        00ffffffffffff0022f0542900000000
        22160104a534207823fc81a4554d9d25
        125054210800d1c081c0814081809500
        a940b3000101283c80a070b023403020
        360006442100001a000000fd00183c18
        5011000a202020202020000000fc0048
        50205a5232343430770a2020000000ff
        00434e34323334313150370a20200159
        020319c14c901f051404130302070612
        012309070783010000023a801871382d
        40582c450006442100001e023a80d072
        382d40102c458006442100001e011d00
        7251d01e206e28550006442100001e01
        1d00bc52d01e20b82855400644210000
        1e8c0ad08a20e02d10103e9600064421
        0000180000000000000000000000007b
    Broadcast RGB: Automatic
        supported: Automatic, Full, Limited 16:235
    audio: auto
        supported: force-dvi, off, auto, on
  1920x1200 (0xf7) 154.000MHz +HSync -VSync *current +preferred
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock  74.04KHz
        v: height 1200 start 1203 end 1209 total 1235           clock  59.95Hz
[...]

> Does disabling compositing help?

No, it doesn't.

> Is it better if you boot a Live Linux media from a year or two or
> three ago, e.g. Knoppix 7.0.5 or openSUSE 12.3 or Mageia 2 or Fedora
> 18?

I tested with openSUSE 12.3, but I had the same problem.

Thank you for your suggestions. Any other idea?

On Mon, Jan 9, 2014 at 3:30 PM, Michael Vanier wrote:
> http://lists.freedesktop.org/archives/intel-gfx/2014-January/038104.html