[Bug 58894] Radeon HD 7690M XT only shows 1280x1024, not able to get 1920x1080

Sun Jan 6 04:22:48 PST 2013

https://bugs.freedesktop.org/show_bug.cgi?id=58894

--- Comment #14 from Benny Ammitzbøll <benny at ammitzboell-consult.dk> ---
Status now is that default my system boots with the intel graphics. I can never
get the LCD (eDP) display working with that, only an external monitor. KDE can
start, but there are flickering problems if I move the mouse pointer in the top
left of the screen (???).

I can switch to radeon using hprofile graphics.radeon (vgaswitcheroo) and also
get KDE running. By putting this into /etc/init.d/xdm start() I get this as
default. BUT the LCD (eDP) is blank until I connect an external monitor. Then
the LCD gets turned on while the external monitor remains blank. In KDE I can
enable the external monitor output and get a picture here as well.

With radeon enabled I get these entries in /var/log/messages (seems to be when
plugging/unplugging the external monitor):

Jan  6 12:48:58 bla-hpenvy17 kernel: ------------[ cut here ]------------
Jan  6 12:48:58 bla-hpenvy17 kernel: WARNING: at
drivers/gpu/drm/i915/intel_dp.c:424 intel_dp_aux_ch+0x114/0x314 [i915]()
Jan  6 12:48:58 bla-hpenvy17 kernel: Hardware name: HP ENVY 17 Notebook PC
Jan  6 12:48:58 bla-hpenvy17 kernel: dp_aux_ch not started status 0xffffffff
Jan  6 12:48:58 bla-hpenvy17 kernel: Modules linked in: ipv6 snd_hda_codec_hdmi
snd_hda_codec_idt snd_hda_intel snd_hda_codec i915 coretemp snd_hwdep snd_pcm
radeon arc4 intel_agp iwldvm ttm mac80211 drm_kms_helper led_class snd_timer
intel_gtt kvm drm agpgart snd i2c_algo_bit iwlwifi pcspkr joydev microcode
cfg80211 snd_page_alloc atl1c i2c_i801 rfkill xts gf128mul aes_x86_64
aes_generic cbc sha256_generic libiscsi scsi_transport_iscsi tg3 libphy e1000
fuse nfs lockd sunrpc jfs multipath linear raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor xor async_tx raid6_pq raid1 raid0 dm_snapshot
dm_crypt dm_mirror dm_region_hash dm_log dm_mod hid_sunplus hid_sony
hid_samsung hid_pl hid_petalynx hid_gyration sl811_hcd usbhid xhci_hcd ohci_hcd
uhci_hcd usb_storage ehci_hcd usbcore usb_common aic94xx libsas lpfc qla2xxx
megaraid_sas megaraid_mbox megaraid_mm megaraid aacraid sx8 DAC960 cciss
3w_9xxx 3w_xxxx mptsas scsi_transport_sas mptfc scsi_transport_fc scsi_tgt
mptspi mptscsih mptbase atp870u dc395x qla1280 imm parport dmx3191d sym53c8xx
gdth advansys initio BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg
pdc_adma sata_inic162x sata_mv ata_piix ahci libahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise pata_sl82c105 pata_cs5530 pata_cs5520 pata_via pata_jmicron
pata_marvell pata_sis pata_netcell pata_sc1200 pata_pdc202xx_old pata_triflex
pata_atiixp pata_opti pata_amd pata_ali pata_it8213 pata_pcmcia pcmcia
pcmcia_core pata_ns87415 pata_ns87410 pata_serverworks pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366 pata_cmd64x
pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x pata_mpiix libata
Jan  6 12:48:58 bla-hpenvy17 kernel: Pid: 17420, comm: upowerd Not tainted
3.6.11-gentoo #2
Jan  6 12:48:58 bla-hpenvy17 kernel: Call Trace:
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffffa069e52c>] ?
intel_dp_aux_ch+0x114/0x314 [i915]
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffff8102e512>]
warn_slowpath_common+0x80/0x98
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffff8102e5be>]
warn_slowpath_fmt+0x41/0x43
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffffa069e52c>]
intel_dp_aux_ch+0x114/0x314 [i915]
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffffa069e973>]
intel_dp_aux_native_read_retry+0x81/0xef [i915]
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffff8109813f>] ?
__alloc_pages_nodemask+0x16c/0x69f
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffffa069ea00>]
intel_dp_get_dpcd+0x1f/0x36 [i915]
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffffa069f8f5>]
intel_dp_detect+0x9a/0x235 [i915]
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffffa06533c9>] status_show+0x3d/0x7c
[drm]
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffff8137f555>]
dev_attr_show+0x22/0x49
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffff810986fc>] ?
__get_free_pages+0x12/0x4f
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffff81110ff6>]
sysfs_read_file+0xa9/0x12b
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffff810bddea>] vfs_read+0xad/0x129
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffff810bdeab>] sys_read+0x45/0x6c
Jan  6 12:48:58 bla-hpenvy17 kernel: [<ffffffff81483762>]
system_call_fastpath+0x16/0x1b
Jan  6 12:48:58 bla-hpenvy17 kernel: ---[ end trace c1b5fa09e10b6b5f ]---

So bottom line:

intel: Blank/black LCD after boot, never able to get it enabled. In KDE there
are flickering problems when moving mouse pointer in some areas.

radeon: Blank/black LCD after boot, but can get enabled by plugging external
monitor. Strange warning messages in the log when plugging/unplugging external
monitor.

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