lkml.org 
[lkml]   [2015]   [Oct]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Mobility Radeon HD 4530/4570/545v: flicker in 1920x1080
    Hi!

    > >4.3-rc7 kernel, graphics works reasonably well in 1600x1200 mode. But
    > >my monitor is native 1920x1080, so that mode looks pretty ugly on
    > >screen. If I go to 1920x1080, I see colored horizontal lines (often
    > >black) as soon as there's graphics activity.
    > >
    > >pavel@half:~$ xrandr
    > >Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
    > >VGA-0 connected 1920x1080+0+0 (normal left inverted right x axis y
    > >axis) 478mm x 268mm
    > > 1920x1080 60.00*+
    > > 1600x1200 60.00
    > > 1680x1050 59.95
    > > 1280x1024 75.02 60.02
    > > 1440x900 59.89
    > > 1024x768 75.08 60.00
    > > 800x600 75.00 60.32
    > > 640x480 75.00 60.00
    > > 720x400 70.08
    > > pavel@half:~$ xrandr --output VGA-0 --mode 1600x1200
    > > pavel@half:~$ xrandr --output VGA-0 --mode 1920x1080
    > > pavel@half:~$ xrandr --output VGA-0 --mode 1600x1200
    > >
    > >
    > >This is Acer notebook,
    > >
    > >01:00.0 VGA compatible controller: Advanced Micro Devices,
    > >Inc. [AMD/ATI] RV710/M92 [Mobility Radeon HD 4530/4570/545v]

    > >Any ideas?
    >
    > Alex probably knows more about this, but it sounds like problems with
    > switching the memory clocks on 3D load.

    > Try to disable power management completely with radeon.dpm=0 on the kernel
    > command line or nailing the hardware at a specific power level using
    > sysfs.

    I tried that, but it still flickers.

    pavel@half:~/misc/fgfs$ cat /proc/cmdline
    BOOT_IMAGE=(hd0,2)/l/linux/arch/x86/boot/bzImage root=/dev/sda4
    resume=/dev/sda1 radeon.dpm=0

    > Power consumption would be totally awkward, but it should help nailing down
    > the problem.

    It seems chromium makes the flicker way worse.. even when running on
    different virtual desktop. I'm not sure which sysfs settings I should
    tweak (or if I should be tweaking them with .dpm=0). But sysfs says:
    pavel@half:/sys/bus/pci/drivers/radeon/0000:01:00.0$ ls
    backlight drm
    irq
    resource
    boot_vga enable local_cpulist resource0
    broken_parity_status firmware_node local_cpus resource0_wc
    class graphics
    modalias resource1
    config
    i2c-0 msi_bus resource2
    consistent_dma_mask_bits i2c-1 power rom
    d3cold_allowed i2c-2
    power_method subsystem
    device
    i2c-3 power_profile subsystem_device
    dma_mask_bits i2c-4 remove
    subsystem_vendor
    driver i2c-5 rescan uevent
    driver_override i2c-6 reset
    vendor
    pavel@half:/sys/bus/pci/drivers/radeon/0000:01:00.0$ grep . *
    grep: backlight: Is a directory
    boot_vga:1
    broken_parity_status:0
    class:0x030000
    Binary file config matches
    consistent_dma_mask_bits:40
    d3cold_allowed:1
    device:0x9553
    dma_mask_bits:40
    grep: driver: Is a directory
    driver_override:(null)
    grep: drm: Is a directory
    enable:1
    grep: firmware_node: Is a directory
    grep: graphics: Is a directory
    grep: i2c-0: Is a directory
    grep: i2c-1: Is a directory
    grep: i2c-2: Is a directory
    grep: i2c-3: Is a directory
    grep: i2c-4: Is a directory
    grep: i2c-5: Is a directory
    grep: i2c-6: Is a directory
    irq:16
    local_cpulist:0-3
    local_cpus:f
    modalias:pci:v00001002d00009553sv00001025sd00000212bc03sc00i00
    msi_bus:1
    grep: power: Is a directory
    power_method:profile
    power_profile:default
    grep: remove: Permission denied
    grep: rescan: Permission denied
    grep: reset: Permission denied
    resource:0x00000000c0000000 0x00000000cfffffff 0x0000000000042208
    resource:0x0000000000005000 0x00000000000050ff 0x0000000000040101
    resource:0x00000000d6200000 0x00000000d620ffff 0x0000000000040200
    resource:0x0000000000000000 0x0000000000000000 0x0000000000000000
    resource:0x0000000000000000 0x0000000000000000 0x0000000000000000
    resource:0x0000000000000000 0x0000000000000000 0x0000000000000000
    resource:0x00000000d6220000 0x00000000d623ffff 0x0000000000046202
    grep: resource0: Permission denied
    grep: resource0_wc: Permission denied
    grep: resource1: Permission denied
    grep: resource2: Permission denied
    grep: rom: Permission denied
    grep: subsystem: Is a directory
    subsystem_device:0x0212
    subsystem_vendor:0x1025
    uevent:DRIVER=radeon
    uevent:PCI_CLASS=30000
    uevent:PCI_ID=1002:9553
    uevent:PCI_SUBSYS_ID=1025:0212
    uevent:PCI_SLOT_NAME=0000:01:00.0
    uevent:MODALIAS=pci:v00001002d00009553sv00001025sd00000212bc03sc00i00
    vendor:0x1002

    Thanks,
    Pavel
    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


    \
     
     \ /
      Last update: 2015-10-31 22:41    [W:2.689 / U:0.180 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site